/* ========================================
   Avulux Brand Guidelines - Styles
   ======================================== */

/* CSS Variables */
:root {
    /* Brand Colors (constant) */
    --teal: #3CA899;
    --teal-dark: #2d8a7d;
    --teal-light: #4fc4b3;
    --navy: #121A24;
    --navy-light: #1e2d3d;
    --navy-dark: #1A1A1A;
    --purple: #7C1683;
    --purple-light: #9A2BA3;
    --cream: #F4F2E6;
    --cream-dark: #e8e5d5;
    --white: #FFFFFF;
    --lens-avulux: #3CA899;
    --lens-adapt: #48A8E0;
    --lens-atlas: #F89820;

    /* Neutral Colors (constant) */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Typography Scale - matching ecp.avulux.com */
    --text-h0: clamp(2.5rem, 5vw, 3.5rem);
    --text-h1: clamp(2rem, 4vw, 3rem);
    --text-h2: clamp(1.75rem, 3vw, 2.25rem);
    --text-h3: clamp(1.25rem, 2vw, 1.5rem);
    --text-body: clamp(0.9375rem, 1vw, 1.0625rem);
    --text-small: 0.875rem;
    --text-xs: 0.75rem;

    /* Letter Spacing */
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.05em;
    --tracking-wider: 0.1em;

    /* Spacing - more generous, better rhythm */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 7rem;
    --space-5xl: 10rem;

    /* Container */
    --container-max: 1300px;
    --container-gutter: clamp(1.25rem, 3vw, 3rem);

    /* Border Radius - refined */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-pill: 3.75rem;

    /* Shadows - more atmospheric */
    --shadow-sm: 0 1px 2px rgba(18, 26, 36, 0.04);
    --shadow-md: 0 4px 12px rgba(18, 26, 36, 0.06);
    --shadow-lg: 0 8px 24px rgba(18, 26, 36, 0.08);
    --shadow-xl: 0 16px 48px rgba(18, 26, 36, 0.12);
    --shadow-glow-teal: 0 4px 24px rgba(60, 168, 153, 0.25);
    --shadow-glow-purple: 0 4px 24px rgba(124, 22, 131, 0.25);

    /* Transitions - smoother, more deliberate */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Theme Variables (default/no mode selected) */
    --bg-primary: var(--white);
    --bg-secondary: var(--cream);
    --bg-card: var(--white);
    --bg-card-alt: var(--cream);
    --text-primary: var(--navy);
    --text-secondary: var(--gray-700);
    /* text-muted must meet WCAG AA on both white and cream — gray-700 = 6.65:1 on cream */
    --text-muted: var(--gray-700);
    --border-color: var(--gray-200);
    --border-color-light: var(--gray-100);
}

/* DTC Mode (Light Theme) */
body[data-mode="dtc"] {
    --bg-primary: var(--white);
    --bg-secondary: var(--cream);
    --bg-card: var(--white);
    --bg-card-alt: var(--cream);
    --text-primary: var(--navy);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-700);
    --border-color: var(--gray-200);
    --border-color-light: var(--cream-dark);
}

/* ECP Mode (Dark Theme) */
body[data-mode="ecp"] {
    --bg-primary: var(--navy);
    --bg-secondary: var(--navy-light);
    --bg-card: var(--navy-dark);
    --bg-card-alt: var(--navy-light);
    --accent-secondary: var(--purple);
    --text-primary: var(--white);
    --text-secondary: var(--gray-300);
    --text-muted: var(--gray-500);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-light: rgba(255, 255, 255, 0.05);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-body);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-slow), color var(--transition-base);
    letter-spacing: var(--tracking-normal);
}

/* Typography - refined hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.15;
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
    transition: color var(--transition-base);
}

h1 { font-size: var(--text-h0); font-weight: 500; }
h2 { font-size: var(--text-h1); }
h3 { font-size: var(--text-h2); }
h4 { font-size: var(--text-h3); font-weight: 500; }
h5 { font-size: 1.125rem; font-weight: 600; font-family: var(--font-body); letter-spacing: var(--tracking-normal); }
h6 { font-size: 1rem; font-weight: 600; font-family: var(--font-body); letter-spacing: var(--tracking-normal); }

p {
    margin-bottom: var(--space-md);
    transition: color var(--transition-base);
    line-height: 1.7;
}

a {
    color: var(--teal);
    text-decoration: none;
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
    color: var(--teal-dark);
    opacity: 0.85;
}

ul, ol {
    padding-left: var(--space-lg);
}

li {
    margin-bottom: var(--space-xs);
}

strong {
    font-weight: 600;
}

blockquote {
    margin: 0;
    padding: 0;
    font-family: var(--font-display);
    color: var(--navy);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-gutter);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--container-gutter);
    background-color: transparent;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(255, 255, 255, 0.88);
    border-bottom: 1px solid rgba(18, 26, 36, 0.06);
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.nav-logo {
    height: 28px;
    width: auto;
    transition: opacity var(--transition-base);
}

.nav-logo-white {
    display: block;
}

.nav-logo-dark {
    display: none;
}

.nav.scrolled .nav-logo-white {
    display: none;
}

.nav.scrolled .nav-logo-dark {
    display: block;
}

/* Responsive nav logo adjustments */
@media (max-width: 768px) {
    .nav-logo {
        height: 24px;
    }
}

.nav-subtitle {
    font-size: var(--text-xs);
    color: rgba(244, 242, 230, 0.7);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    font-weight: 500;
    transition: color var(--transition-base);
    margin-top: 2px;
}

.nav.scrolled .nav-subtitle {
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu a {
    font-size: var(--text-xs);
    font-weight: 500;
    color: rgba(244, 242, 230, 0.85);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    transition: color var(--transition-fast), opacity var(--transition-fast);
    padding-bottom: 4px;
    opacity: 0.9;
}

.nav-menu a:hover {
    opacity: 1;
}

.nav.scrolled .nav-menu a {
    color: var(--navy);
    opacity: 0.7;
}

.nav.scrolled .nav-menu a:hover {
    opacity: 1;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--teal);
    opacity: 1;
}

.nav.scrolled .nav-menu a:hover,
.nav.scrolled .nav-menu a.active {
    color: var(--teal);
    opacity: 1;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: all var(--transition-fast);
}

.nav.scrolled .nav-toggle span {
    background-color: var(--navy);
}

/* Hero Section */
/* Hero — editorial cover */
.hero {
    display: grid;
    grid-template-columns: clamp(360px, 44%, 620px) 1fr;
    min-height: 100vh;
    background-color: var(--navy);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-image {
    position: relative;
    margin: 0;
    overflow: hidden;
    background-color: var(--navy-dark);
}

.hero-image-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-image-dtc {
    opacity: 1;
    object-position: 50% 38%;
}

.hero-image-ecp {
    opacity: 0;
    object-position: 45% 50%;
}

body[data-mode="ecp"] .hero-image-dtc {
    opacity: 0;
}

body[data-mode="ecp"] .hero-image-ecp {
    opacity: 1;
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(18, 26, 36, 0) 55%, var(--navy) 100%);
    pointer-events: none;
}

.hero-frame {
    position: relative;
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: clamp(2rem, 4vh, 3.5rem);
    padding: clamp(6.5rem, 11vh, 9rem) clamp(1.75rem, 5vw, 5rem) clamp(2.25rem, 5vh, 3.5rem);
    opacity: 0;
    animation: heroFrameIn 900ms cubic-bezier(0.22, 0.8, 0.28, 1) 120ms forwards;
}

@keyframes heroFrameIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.hero-masthead {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.65);
}

.hero-masthead-mark {
    color: var(--white);
    font-weight: 600;
}

.hero-masthead-rule {
    flex: 0 0 52px;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.3);
}

.hero-statement {
    align-self: end;
    max-width: 680px;
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 5.2vw, 5.25rem);
    font-weight: 400;
    line-height: 0.98;
    letter-spacing: -0.02em;
    margin: 0 0 1.5rem;
    color: var(--white);
}

.hero-headline em {
    font-style: italic;
    color: var(--cream);
}

.hero-lead {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.1vw, 1.125rem);
    line-height: 1.65;
    color: rgba(244, 242, 230, 0.76);
    max-width: 52ch;
    margin: 0;
}

.hero-audience {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 1.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    max-width: 680px;
}

.hero-audience-intro {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.hero-audience-eyebrow {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.24em;
    color: var(--teal);
    font-weight: 600;
}

.hero-audience-helper {
    font-size: 0.85rem;
    line-height: 1.5;
    color: rgba(244, 242, 230, 0.7);
}

.hero-audience-choices {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    column-gap: clamp(0.75rem, 2vw, 1.5rem);
    align-items: stretch;
}

.hero-audience-divider {
    background-color: rgba(255, 255, 255, 0.16);
    align-self: stretch;
}

.hero-audience-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem 0.9rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    color: var(--white);
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.hero-audience-btn:hover {
    background-color: rgba(60, 168, 153, 0.08);
    border-color: rgba(60, 168, 153, 0.45);
}

.hero-audience-btn.active {
    background-color: rgba(60, 168, 153, 0.12);
    border-color: var(--teal);
}

.hero-audience-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-weight: 600;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(244, 242, 230, 0.6);
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.hero-audience-status::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
    opacity: 0.6;
}

.hero-audience-status-on {
    display: none;
}

.hero-audience-status-off {
    display: inline;
}

.hero-audience-btn.active .hero-audience-status {
    background-color: var(--teal);
    border-color: var(--teal);
    color: var(--navy);
}

.hero-audience-btn.active .hero-audience-status::before {
    opacity: 1;
}

.hero-audience-btn.active .hero-audience-status-on {
    display: inline;
}

.hero-audience-btn.active .hero-audience-status-off {
    display: none;
}

.hero-audience-palette {
    display: flex;
    gap: 4px;
    width: 100%;
}

.hero-audience-palette > span {
    flex: 1;
    height: 10px;
    border-radius: 2px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.hero-audience-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.hero-audience-kicker {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.55);
    transition: color var(--transition-base);
}

.hero-audience-label {
    font-family: var(--font-display);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--white);
    transition: color var(--transition-base);
}

.hero-audience-btn:hover .hero-audience-label,
.hero-audience-btn:focus-visible .hero-audience-label {
    color: var(--teal);
}

.hero-audience-btn.active .hero-audience-kicker {
    color: var(--teal);
}

.hero-audience-btn:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 4px;
    border-radius: 6px;
}

/* DTC Mode — Hero restyled for consumer audience */
body[data-mode="dtc"] .hero {
    background-color: var(--cream);
    color: var(--navy);
}

body[data-mode="dtc"] .hero-image {
    background-color: var(--cream-dark, #E8E5D3);
}

body[data-mode="dtc"] .hero-image::after {
    background: linear-gradient(100deg, rgba(244, 242, 230, 0) 55%, var(--cream) 100%);
}

body[data-mode="dtc"] .hero-masthead {
    color: rgba(18, 26, 36, 0.6);
}

body[data-mode="dtc"] .hero-masthead-mark {
    color: var(--navy);
}

body[data-mode="dtc"] .hero-masthead-rule {
    background-color: rgba(18, 26, 36, 0.22);
}

body[data-mode="dtc"] .hero-headline {
    color: var(--navy);
}

body[data-mode="dtc"] .hero-headline em {
    color: var(--teal);
}

body[data-mode="dtc"] .hero-lead {
    color: rgba(18, 26, 36, 0.72);
}

body[data-mode="dtc"] .hero-audience {
    border-top-color: rgba(18, 26, 36, 0.14);
}

body[data-mode="dtc"] .hero-audience-helper {
    color: rgba(18, 26, 36, 0.62);
}

body[data-mode="dtc"] .hero-audience-divider {
    background-color: rgba(18, 26, 36, 0.14);
}

body[data-mode="dtc"] .hero-audience-btn {
    color: var(--navy);
    border-color: rgba(18, 26, 36, 0.14);
}

body[data-mode="dtc"] .hero-audience-btn:hover {
    background-color: rgba(60, 168, 153, 0.08);
    border-color: rgba(60, 168, 153, 0.45);
}

body[data-mode="dtc"] .hero-audience-btn.active {
    background-color: rgba(60, 168, 153, 0.1);
    border-color: var(--teal);
}

body[data-mode="dtc"] .hero-audience-label {
    color: var(--navy);
}

body[data-mode="dtc"] .hero-audience-kicker {
    color: rgba(18, 26, 36, 0.55);
}

body[data-mode="dtc"] .hero-audience-status {
    background-color: rgba(18, 26, 36, 0.05);
    border-color: rgba(18, 26, 36, 0.14);
    color: rgba(18, 26, 36, 0.55);
}

body[data-mode="dtc"] .hero-audience-btn.active .hero-audience-status {
    background-color: var(--teal);
    border-color: var(--teal);
    color: var(--white);
}

/* DTC Mode — Nav styled for light hero */
body[data-mode="dtc"] .nav:not(.scrolled) .nav-logo-white {
    display: none;
}

body[data-mode="dtc"] .nav:not(.scrolled) .nav-logo-dark {
    display: block;
}

body[data-mode="dtc"] .nav:not(.scrolled) .nav-subtitle {
    color: rgba(18, 26, 36, 0.6);
}

body[data-mode="dtc"] .nav:not(.scrolled) .nav-menu a {
    color: rgba(18, 26, 36, 0.78);
}

body[data-mode="dtc"] .nav:not(.scrolled) .nav-toggle span {
    background-color: var(--navy);
}

/* Floating Toggle — minimal editorial mode switch */
.floating-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.floating-toggle.visible {
    opacity: 1;
    visibility: visible;
}

.floating-toggle-btn {
    display: flex;
    align-items: stretch;
    padding: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    overflow: hidden;
    cursor: pointer;
    font-family: inherit;
    transition: border-color var(--transition-base);
}

.floating-toggle-btn:hover {
    border-color: var(--text-muted);
}

.toggle-current {
    display: none;
}

.toggle-switch {
    display: flex;
    align-items: stretch;
}

.toggle-option {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.1rem;
    font-family: var(--font-body);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    background: transparent;
    transition: color var(--transition-base), background-color var(--transition-base);
}

.toggle-option.active {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

/* ECP state for floating toggle */
body[data-mode="ecp"] .floating-toggle-btn {
    background-color: var(--navy);
    border-color: rgba(255, 255, 255, 0.15);
}

body[data-mode="ecp"] .floating-toggle-btn:hover {
    border-color: rgba(255, 255, 255, 0.3);
}

body[data-mode="ecp"] .toggle-option {
    color: rgba(255, 255, 255, 0.55);
}

body[data-mode="ecp"] .toggle-option.active {
    background-color: var(--white);
    color: var(--navy);
}

/* Main Content */
.main {
    background-color: var(--white);
    transition: background-color var(--transition-slow);
}

/* Sections - generous spacing like ecp.avulux.com */
.section {
    padding: var(--space-4xl) 0;
    transition: background-color var(--transition-slow);
}

@media (min-width: 1024px) {
    .section {
        padding: var(--space-5xl) 0;
    }
}

.section-alt {
    background-color: var(--cream);
    transition: background-color var(--transition-slow);
}

.section-title {
    font-size: var(--text-h1);
    margin-bottom: var(--space-2xl);
    position: relative;
    display: inline-block;
    letter-spacing: var(--tracking-tight);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 48px;
    height: 3px;
    background-color: var(--teal);
    border-radius: 2px;
    transition: width var(--transition-base);
}

.section-title:hover::after {
    width: 72px;
}

.section-intro {
    font-size: var(--text-body);
    color: var(--gray-600);
    max-width: 680px;
    margin-bottom: var(--space-3xl);
    line-height: 1.8;
}

.subsection-title {
    font-size: var(--text-h3);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    color: var(--navy);
    letter-spacing: var(--tracking-tight);
}

/* ============================================
   Editorial patterns — section cover, prose,
   pull quotes, principles, voice, glance list,
   manifesto. Used across section refreshes.
   ============================================ */

.section-cover {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: clamp(1.5rem, 4vw, 3rem);
    align-items: end;
    padding-bottom: clamp(2.5rem, 6vh, 4rem);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: clamp(3rem, 7vh, 5rem);
}

.section-cover-num {
    font-family: var(--font-display);
    font-size: clamp(5rem, 14vw, 11rem);
    font-weight: 400;
    line-height: 0.82;
    color: var(--text-primary);
    letter-spacing: -0.04em;
    opacity: 0.9;
}

body[data-mode="ecp"] .section-cover-num {
    color: var(--teal);
    opacity: 1;
}

.section-cover-text {
    padding-bottom: 0.5rem;
}

.section-cover-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.2vw, 2.75rem);
    font-weight: 400;
    line-height: 1.05;
    margin: 0 0 0.6rem;
    letter-spacing: -0.02em;
}

.section-cover-lede {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.2vw, 1.15rem);
    line-height: 1.55;
    color: var(--text-secondary);
    max-width: 52ch;
    margin: 0;
}

@media (max-width: 768px) {
    .section-cover {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .section-cover-num {
        font-size: clamp(4rem, 18vw, 6rem);
        line-height: 1;
    }
}

/* Prose block — for editorial opening paragraphs */
.prose-block {
    max-width: 64ch;
    margin-bottom: clamp(2.5rem, 5vh, 4rem);
}

.prose-block + .prose-block {
    margin-top: -1rem;
}

.prose-lead {
    font-family: var(--font-body);
    font-size: clamp(1.125rem, 1.5vw, 1.35rem);
    line-height: 1.55;
    font-weight: 400;
    letter-spacing: -0.005em;
    color: var(--text-primary);
    margin: 0;
}

.prose-block p + p {
    margin-top: 1rem;
}

.prose-block p:not(.prose-lead) {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.05vw, 1.0625rem);
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Chapter — a sub-section inside a bigger page (Logo, Brand System) */
.chapter {
    margin: clamp(3rem, 7vh, 5rem) 0;
}

.chapter + .chapter {
    margin-top: clamp(4rem, 9vh, 6rem);
}

.chapter-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.6vw, 2.15rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 clamp(1.25rem, 3vh, 1.75rem);
    padding-bottom: clamp(0.75rem, 2vh, 1.25rem);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.chapter-lead {
    font-family: var(--font-body);
    font-size: clamp(1.05rem, 1.3vw, 1.2rem);
    line-height: 1.55;
    font-weight: 400;
    letter-spacing: -0.005em;
    color: var(--text-primary);
    max-width: 56ch;
    margin: 0 0 clamp(1.75rem, 4vh, 2.5rem);
}

.chapter-subhead {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin: clamp(2.5rem, 5vh, 3.5rem) 0 clamp(0.75rem, 2vh, 1.25rem);
}

/* Kicker heading — small uppercase rule-separator */
.content-kicker {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin: 0 0 1.5rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

/* Contents / section nav on intro page */
.contents-nav {
    margin-top: clamp(2.5rem, 6vh, 4rem);
}

.contents-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.contents-list li {
    border-bottom: 1px solid var(--border-color);
}

.contents-list a {
    display: grid;
    grid-template-columns: clamp(54px, 6vw, 78px) 1fr auto auto;
    align-items: baseline;
    column-gap: clamp(1rem, 3vw, 2.5rem);
    padding: clamp(1.1rem, 2.4vh, 1.5rem) 0;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.contents-list a::after {
    content: "→";
    font-size: 1rem;
    color: var(--text-muted);
    transition: transform var(--transition-base), color var(--transition-base);
}

.contents-list a:hover,
.contents-list a:focus-visible {
    color: var(--teal);
    outline: none;
}

.contents-list a:hover::after,
.contents-list a:focus-visible::after {
    transform: translateX(6px);
    color: var(--teal);
}

.contents-num {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 1.8vw, 1.55rem);
    color: var(--text-muted);
    letter-spacing: -0.02em;
    transition: color var(--transition-base);
}

.contents-list a:hover .contents-num,
.contents-list a:focus-visible .contents-num {
    color: var(--teal);
}

.contents-name {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.4vw, 2rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.contents-meta {
    font-family: var(--font-body);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    text-align: right;
}

@media (max-width: 768px) {
    .contents-list a {
        grid-template-columns: 44px 1fr auto;
    }
    .contents-meta {
        display: none;
    }
}

/* Mission + Vision — paired pull quotes */
.statement-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 4rem);
    margin: clamp(3rem, 6vh, 5rem) 0;
    padding-top: clamp(2.5rem, 5vh, 4rem);
    border-top: 1px solid var(--border-color);
}

.statement {
    margin: 0;
}

.statement-label {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin-bottom: 1.1rem;
}

.statement-quote {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 1.85vw, 1.65rem);
    line-height: 1.38;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin: 0;
}

@media (max-width: 768px) {
    .statement-pair {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Principles — what we stand for */
.principles {
    margin: clamp(3rem, 6vh, 5rem) 0;
}

.principles-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    column-gap: clamp(1.25rem, 3vw, 2.75rem);
}

.principles-list li {
    font-family: var(--font-body);
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.principles-list strong {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(1.25rem, 1.6vw, 1.5rem);
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.principles-list span {
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--text-secondary);
}

@media (max-width: 960px) {
    .principles-list {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 1.75rem;
    }
}

@media (max-width: 560px) {
    .principles-list {
        grid-template-columns: 1fr;
        row-gap: 1.5rem;
    }
}

/* Voice comparison */
.voice-section {
    margin: clamp(3rem, 6vh, 5rem) 0;
}

.voice-lead {
    margin-bottom: clamp(1.75rem, 4vh, 2.5rem);
    max-width: 60ch;
}

.voice-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 3.5rem);
    padding-top: clamp(1.75rem, 4vh, 2.5rem);
    border-top: 1px solid var(--border-color);
}

.voice-column {
    margin: 0;
}

.voice-label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin-bottom: 0.9rem;
}

.voice-desc {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-primary);
    margin: 0 0 1.5rem;
    max-width: 40ch;
}

.voice-example {
    margin: 0;
    padding: 0.25rem 0 0.25rem 1.25rem;
    border-left: 2px solid var(--teal);
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.15vw, 1.1rem);
    line-height: 1.6;
    font-style: italic;
    color: var(--text-primary);
}

body[data-mode="ecp"] .voice-example {
    border-left-color: var(--teal);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .voice-comparison {
        grid-template-columns: 1fr;
        gap: 2.25rem;
    }
}

/* At-a-glance positioning table */
.at-a-glance {
    margin: clamp(3rem, 6vh, 5rem) 0;
}

.glance-list {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--border-color);
}

.glance-row {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: clamp(1.5rem, 3vw, 3rem);
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-color);
}

.glance-row dt {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    padding-top: 0.35rem;
}

.glance-row dd {
    margin: 0;
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.15vw, 1.1rem);
    line-height: 1.6;
    color: var(--text-primary);
    letter-spacing: -0.005em;
}

@media (max-width: 768px) {
    .glance-row {
        grid-template-columns: 1fr;
        gap: 0.4rem;
        padding: 1.1rem 0;
    }
}

/* Feature photo — full-width editorial image used as a visual pull-quote */
.feature-photo {
    margin: clamp(3rem, 7vh, 5rem) 0;
    padding: 0;
    position: relative;
}

.feature-photo img {
    display: block;
    width: 100%;
    max-height: 72vh;
    object-fit: cover;
    object-position: center 30%;
    border-radius: 8px;
}

.feature-photo figcaption {
    margin-top: 1.15rem;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

/* Break feature photo out of container for a richer editorial feel */
.feature-photo.bleed {
    margin-left: calc(-1 * var(--container-gutter));
    margin-right: calc(-1 * var(--container-gutter));
}

/* Manifesto closing block */
.manifesto-block {
    margin: clamp(4rem, 8vh, 6rem) 0 0;
    padding-top: clamp(3rem, 6vh, 5rem);
    border-top: 1px solid var(--border-color);
}

.manifesto-body {
    margin: 0;
    max-width: 56ch;
}

.manifesto-body p {
    font-family: var(--font-body);
    font-size: clamp(1.1rem, 1.4vw, 1.3rem);
    line-height: 1.6;
    font-weight: 400;
    letter-spacing: -0.005em;
    color: var(--text-primary);
    margin: 0;
}

.manifesto-body p + p {
    margin-top: 1.2rem;
}

.manifesto-signature {
    margin-top: clamp(2rem, 5vh, 2.75rem);
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-style: italic;
    color: var(--teal);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Brand System */
/* Audience diptych — Brand System opener */
.audience-diptych {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2.5rem, 5vw, 5rem);
    margin-bottom: clamp(3rem, 7vh, 5rem);
}

.audience-panel {
    margin: 0;
    display: flex;
    flex-direction: column;
}

.audience-panel-image {
    margin: 0 0 1.75rem;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: var(--bg-secondary);
    border-radius: 8px;
}

.audience-panel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.audience-panel-kicker {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin-bottom: 0.85rem;
}

.audience-panel-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    line-height: 1.12;
    font-weight: 400;
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    color: var(--text-primary);
}

.audience-panel-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 0;
    max-width: 46ch;
}

@media (max-width: 768px) {
    .audience-diptych {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

/* Four Principles — numbered editorial list */
.principles-rows {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--border-color);
}

.principles-rows li {
    display: grid;
    grid-template-columns: clamp(70px, 10vw, 120px) 1fr;
    gap: clamp(1.5rem, 3vw, 3rem);
    padding: clamp(1.5rem, 3.5vh, 2.25rem) 0;
    border-bottom: 1px solid var(--border-color);
    align-items: start;
}

.principle-num {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.4vw, 2.25rem);
    line-height: 1;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: -0.02em;
    padding-top: 0.1em;
}

.principle-text {
    max-width: 62ch;
}

.principle-name {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 1.75vw, 1.5rem);
    font-weight: 400;
    line-height: 1.25;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin-bottom: 0.6rem;
}

.principle-text p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 0;
}

@media (max-width: 560px) {
    .principles-rows li {
        grid-template-columns: 50px 1fr;
        gap: 1rem;
    }
    .principle-num {
        font-size: 1.35rem;
    }
}

/* Messaging matrix — editorial table */
.matrix-wrap {
    margin-top: 0;
}

.matrix {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--text-primary);
    table-layout: fixed;
}

.matrix thead th {
    text-align: left;
    vertical-align: bottom;
    padding: 0 clamp(1rem, 2.5vw, 2rem) 1.25rem 0;
    border-bottom: 1px solid var(--text-primary);
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(1.1rem, 1.5vw, 1.35rem);
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.matrix thead th:first-child {
    width: 22%;
}

.matrix-kicker {
    display: block;
    font-family: var(--font-body);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.matrix tbody th {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    text-align: left;
    vertical-align: top;
    padding: 1.5rem 2rem 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.matrix tbody td {
    vertical-align: top;
    padding: 1.5rem clamp(1rem, 2.5vw, 2rem) 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    line-height: 1.65;
}

.matrix tbody td:last-child {
    padding-right: 0;
}

@media (max-width: 768px) {
    .matrix-wrap {
        overflow-x: auto;
        margin: 0 calc(-1 * var(--container-gutter));
        padding: 0 var(--container-gutter);
    }
    .matrix {
        min-width: 640px;
        table-layout: auto;
    }
}


/* Logo Section */
.logo-display {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) var(--space-3xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.logo-display.primary {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
}

.logo-display.on-white {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
}

.logo-display.on-dark {
    background-color: var(--navy);
}

.logo-display.on-teal {
    background-color: var(--teal);
}

.logo-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.logo-placeholder .placeholder-text {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-placeholder .placeholder-note {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

.logo-placeholder.small {
    padding: var(--space-lg);
}

.logo-placeholder.small span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-placeholder.reversed span {
    color: var(--white);
}

.logo-placeholder.grayscale span {
    color: var(--gray-600);
}

/* Logo Images */
.logo-image {
    max-width: 100%;
    height: auto;
}

.logo-image.primary-logo {
    max-width: 420px;
}

.logo-image.wordmark-logo {
    max-width: 300px;
}

.logo-image.icon-logo {
    max-width: 100px;
}

.logo-image.grayscale {
    filter: grayscale(100%);
}

.logo-note {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Logo Variations Grid */
.logo-variations-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.logo-variation {
    text-align: center;
}

.logo-variation .logo-display {
    padding: var(--space-xl);
    margin-bottom: var(--space-md);
}

.logo-variation .logo-display .logo-image {
    max-width: 180px;
    height: auto;
}

.logo-variation p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Clear Space Demo */
.clearspace-demo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    margin-bottom: var(--space-2xl);
}

.clearspace-visual {
    display: flex;
    justify-content: center;
    padding: var(--space-3xl);
    background-color: var(--cream);
    border-radius: var(--radius-lg);
}

.logo-placeholder.with-clearspace {
    position: relative;
    padding: var(--space-2xl);
    border: 2px dashed var(--teal);
}

.logo-placeholder.with-clearspace span {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-with-clearspace {
    position: relative;
    padding: var(--space-2xl);
    border: 2px dashed var(--teal);
    display: inline-block;
}

.logo-with-clearspace .logo-image {
    max-width: 200px;
    display: block;
}

.logo-minsize {
    padding: var(--space-md);
    background-color: var(--cream);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    display: inline-block;
}

.clearspace-indicator {
    position: absolute;
    background-color: rgba(60, 168, 153, 0.2);
}

.clearspace-indicator.top {
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
}

.clearspace-indicator.bottom {
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
}

.clearspace-indicator.left {
    top: 0;
    bottom: 0;
    left: 0;
    width: 20px;
}

.clearspace-indicator.right {
    top: 0;
    bottom: 0;
    right: 0;
    width: 20px;
}

.clearspace-info h4 {
    margin-bottom: var(--space-md);
}

/* Minimum Size Demo */
.minsize-demo {
    margin-top: var(--space-xl);
}

.minsize-demo h4 {
    margin-bottom: var(--space-lg);
}

.minsize-examples {
    display: flex;
    gap: var(--space-2xl);
    align-items: flex-end;
}

.minsize-item {
    text-align: center;
}

.logo-placeholder.minsize {
    padding: var(--space-md);
    background-color: var(--cream);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
}

.logo-placeholder.minsize.digital span {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-placeholder.minsize.print span {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--navy);
}

.minsize-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Don'ts — editorial grid of bad examples */
.donts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.25rem, 2.5vw, 2rem);
    border-top: 1px solid var(--border-color);
    padding-top: clamp(1.5rem, 3vh, 2rem);
}

.dont-item {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.dont-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 5 / 3;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    padding: 0 clamp(1rem, 2vw, 1.5rem);
}

.dont-visual .dont-logo {
    max-width: 140px;
    max-height: 46px;
    width: auto;
    height: auto;
}

.dont-visual.rotated .dont-logo {
    transform: rotate(12deg);
}

.dont-visual.stretched .dont-logo {
    transform: scaleX(1.6);
}

.dont-visual.wrong-color .dont-logo {
    filter: hue-rotate(280deg) saturate(2);
}

.wrong-font-text {
    font-family: 'Comic Sans MS', 'Chalkboard', cursive;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
}

.dont-visual.busy-bg {
    background: repeating-linear-gradient(
        45deg,
        rgba(18, 26, 36, 0.04),
        rgba(18, 26, 36, 0.04) 10px,
        rgba(18, 26, 36, 0.1) 10px,
        rgba(18, 26, 36, 0.1) 20px
    );
}

.dont-visual.with-effects .dont-logo {
    filter: drop-shadow(4px 4px 10px rgba(0, 0, 0, 0.45));
}

.dont-caption {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.dont-kicker {
    font-family: var(--font-body);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    position: relative;
    padding-left: 1rem;
}

.dont-kicker::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 7px;
    height: 2px;
    background-color: var(--text-primary);
    opacity: 0.55;
}

.dont-text {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.4;
    color: var(--text-primary);
    text-decoration: line-through;
    text-decoration-color: rgba(18, 26, 36, 0.3);
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

body[data-mode="ecp"] .dont-text {
    text-decoration-color: rgba(255, 255, 255, 0.25);
}

@media (max-width: 768px) {
    .donts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .donts-grid {
        grid-template-columns: 1fr;
    }
}

/* Brand Architecture — editorial layout */
.architecture {
    display: grid;
    grid-template-columns: 1fr;
    row-gap: 0;
}

.arch-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    column-gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: baseline;
    padding: clamp(1.5rem, 3vh, 2rem) 0;
    border-bottom: 1px solid var(--border-color);
}

.arch-row:first-child {
    border-top: 1px solid var(--border-color);
}

.arch-kicker {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    padding-top: 0.4rem;
}

.arch-master-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.arch-audiences {
    display: flex;
    gap: clamp(2rem, 5vw, 4rem);
    flex-wrap: wrap;
}

.arch-audience {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.arch-audience-code {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.arch-audience-role {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

.arch-lenses {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
}

.arch-lens {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.arch-lens-logo {
    display: block;
    height: 58px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    object-position: left center;
}

/* Avulux wordmark is single-line; nudge it down to sit at the baseline
   of the sub-brand words in Adapt / Atlas */
.arch-lens-primary .arch-lens-logo {
    height: 36px;
    margin-top: 22px;
}

.arch-lens figcaption {
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .arch-row {
        grid-template-columns: 1fr;
        row-gap: 1rem;
    }
    .arch-kicker {
        padding-top: 0;
    }
    .arch-lenses {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Taglines — editorial list inside .glance-list */
.tagline-quote {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 1.5vw, 1.4rem);
    line-height: 1.35;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.tagline-quote::before {
    content: "\201C";
    margin-right: 0.1em;
}

.tagline-quote::after {
    content: "\201D";
}

.tagline-quote + .tagline-quote {
    margin-top: 0.5rem;
}

.tagline-use {
    display: block;
    margin-top: 0.75rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    line-height: 1.55;
    color: var(--text-secondary);
    font-style: italic;
}

/* Color Section */
/* Color — editorial palette */
.palette {
    border-top: 1px solid var(--border-color);
}

.swatch {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: clamp(2rem, 4vw, 3.5rem);
    padding: clamp(2rem, 4vh, 3rem) 0;
    border-bottom: 1px solid var(--border-color);
    align-items: start;
}

.swatch-color {
    aspect-ratio: 3 / 4;
    width: 100%;
    display: flex;
    align-items: flex-end;
    padding: 1.25rem;
}

.swatch-aa {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    line-height: 0.9;
    letter-spacing: -0.02em;
    color: inherit;
    opacity: 0.95;
}

.swatch-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding-top: 0.1rem;
}

.swatch-head {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
}

.swatch-name {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2vw, 1.85rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--text-primary);
}

.swatch-role {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

.swatch-use {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
    max-width: 56ch;
}

.swatch-values {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin: 0;
    max-width: 540px;
}

.swatch-values > div {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
}

.swatch-values dt {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

.swatch-values dd {
    margin: 0;
}

.swatch-values .color-code {
    display: block;
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-color);
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-primary);
    padding: 0.45rem 0.7rem;
    cursor: pointer;
    text-align: left;
    transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
}

.swatch-values .color-code:hover,
.swatch-values .color-code:focus-visible {
    border-color: var(--teal);
    color: var(--teal);
    outline: none;
}

.swatch-values .color-code.copied {
    background-color: var(--teal) !important;
    border-color: var(--teal) !important;
    color: var(--white) !important;
}

.swatch-contrast {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.contrast-badge {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--border-color);
}

/* Inline color swatch for matrix tables */
.inline-swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    vertical-align: middle;
    margin-right: 0.5rem;
    background-color: transparent;
}

@media (max-width: 768px) {
    .swatch {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .swatch-color {
        aspect-ratio: 16 / 9;
    }
    .swatch-values {
        grid-template-columns: 1fr 1fr;
    }
}

/* Product palette — portfolio differentiation */
.product-palette {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2vw, 1.5rem);
    margin-top: 2rem;
}

.product-card {
    background-color: var(--product-bg);
    border-top: 4px solid var(--product-core);
    border-radius: 8px;
    padding: clamp(1.5rem, 2.5vw, 2rem);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2rem;
    min-height: 320px;
    color: #121A24;
    position: relative;
    overflow: hidden;
}

.product-card-head {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.product-card-kicker {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: rgba(18, 26, 36, 0.6);
}

.product-card-name {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.2vw, 2rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0.15rem 0 0.5rem;
    color: #121A24;
}

.product-card-use {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.55;
    color: rgba(18, 26, 36, 0.78);
    margin: 0;
    max-width: 32ch;
}

.product-card-colors {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 0;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(18, 26, 36, 0.14);
}

.product-color {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
}

.product-chip {
    display: block;
    width: 100%;
    height: 26px;
    border-radius: 4px;
    box-shadow: inset 0 0 0 1px rgba(18, 26, 36, 0.1);
}

.product-color dt {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: rgba(18, 26, 36, 0.6);
}

.product-color dd {
    margin: 0;
}

.product-color .color-code {
    color: #121A24;
    background: transparent;
    border: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    letter-spacing: 0.02em;
}

.product-color .color-code:hover,
.product-color .color-code:focus-visible {
    color: var(--product-core);
    outline: none;
}

.product-color .color-code.copied {
    color: var(--product-core);
}

.product-palette-note {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 1.5rem 0 0;
    max-width: 72ch;
}

@media (max-width: 960px) {
    .product-palette {
        grid-template-columns: 1fr;
    }
    .product-card {
        min-height: 0;
    }
}

/* Typography — editorial typeface specimens */
.playfair-face { font-family: var(--font-display); }
.archivo-face { font-family: var(--font-body); }

.typeface {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(2rem, 5vw, 4.5rem);
    row-gap: clamp(2rem, 5vh, 3.5rem);
    align-items: start;
}

.typeface-meta {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    max-width: 44ch;
}

.typeface-name {
    font-size: clamp(2.5rem, 4.8vw, 4.5rem);
    font-weight: 400;
    line-height: 1;
    margin: 0;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.typeface-use {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 0;
}

.typeface-specimen {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
    padding-top: 0.25rem;
}

.specimen-big {
    font-size: clamp(4rem, 9vw, 7.5rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    display: block;
}

.specimen-phrase {
    font-size: clamp(1.15rem, 1.6vw, 1.5rem);
    line-height: 1.35;
    letter-spacing: -0.01em;
    color: var(--text-secondary);
    display: block;
    max-width: 34ch;
}

.typeface-weights {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(1rem, 2.5vw, 2rem);
    padding-top: clamp(1.75rem, 4vh, 2.5rem);
    border-top: 1px solid var(--border-color);
}

.weight {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 0;
}

.weight-sample {
    font-size: clamp(2rem, 3.5vw, 3rem);
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.weight-name {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .typeface {
        grid-template-columns: 1fr;
    }
    .typeface-weights {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 1.75rem;
    }
}

/* Type scale — editorial list */
.type-scale {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--border-color);
}

.type-scale li {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    align-items: baseline;
    column-gap: clamp(1.5rem, 3vw, 2.5rem);
    padding: clamp(1.25rem, 3vh, 1.85rem) 0;
    border-bottom: 1px solid var(--border-color);
}

.scale-role {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    padding-top: 0.3rem;
}

.scale-sample {
    color: var(--text-primary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.scale-spec {
    font-family: var(--font-body);
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
    padding-top: 0.3rem;
}

@media (max-width: 768px) {
    .type-scale li {
        grid-template-columns: 1fr;
        row-gap: 0.6rem;
    }
    .scale-spec {
        white-space: normal;
    }
}

/* Imagery — editorial photo grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(0.75rem, 1.5vw, 1.5rem);
    margin: 0 0 clamp(1.75rem, 4vh, 2.5rem);
}

.photo-grid.two-up {
    grid-template-columns: repeat(2, 1fr);
}

.photo-grid figure {
    margin: 0;
    display: flex;
    flex-direction: column;
}

.photo-grid img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    display: block;
    border-radius: 8px;
}

.photo-grid figcaption {
    margin-top: 0.9rem;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .photo-grid {
        grid-template-columns: 1fr 1fr;
    }
    .photo-grid.two-up {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .photo-grid {
        grid-template-columns: 1fr;
    }
}

/* Chapter body — supporting paragraph after content */
.chapter-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
    max-width: 62ch;
}

/* Mood comparison — Do / Avoid editorial diptych */
.mood-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    padding-top: clamp(1.5rem, 3vh, 2.25rem);
    border-top: 1px solid var(--border-color);
}

.mood-column {
    margin: 0;
}

.mood-label {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.mood-label::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--teal);
}

.mood-column-avoid .mood-label::before {
    background-color: var(--text-muted);
}

.mood-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mood-list li {
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    line-height: 1.45;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-color-light);
}

.mood-column-avoid .mood-list li {
    color: var(--text-secondary);
    text-decoration: line-through;
    text-decoration-color: rgba(18, 26, 36, 0.22);
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

body[data-mode="ecp"] .mood-column-avoid .mood-list li {
    text-decoration-color: rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .mood-comparison {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Downloads — editorial asset list */
.asset-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--border-color);
}

.asset-list li {
    border-bottom: 1px solid var(--border-color);
}

.asset-link {
    display: grid;
    grid-template-columns: 100px 1fr auto auto;
    align-items: center;
    column-gap: clamp(1rem, 2.5vw, 2rem);
    padding: clamp(1rem, 2vh, 1.4rem) 0;
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-base);
}

.asset-link:hover,
.asset-link:focus-visible {
    color: var(--teal);
    outline: none;
}

.asset-thumb {
    width: 100px;
    height: 68px;
    margin: 0;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.asset-thumb-light {
    background-color: var(--cream);
}

.asset-thumb-dark {
    background-color: var(--navy);
}

body[data-mode="ecp"] .asset-thumb-light {
    background-color: var(--cream) !important;
}

.asset-thumb img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.asset-meta {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    min-width: 0;
}

.asset-name {
    font-family: var(--font-display);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: inherit;
    line-height: 1.3;
}

.asset-desc {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.asset-format {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--text-muted);
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--border-color);
    transition: color var(--transition-base), border-color var(--transition-base);
}

.asset-arrow {
    font-size: 1.05rem;
    line-height: 1;
    color: var(--text-muted);
    transition: transform var(--transition-base), color var(--transition-base);
}

.asset-link:hover .asset-arrow,
.asset-link:focus-visible .asset-arrow {
    transform: translateY(3px);
    color: var(--teal);
}

.asset-link:hover .asset-format,
.asset-link:focus-visible .asset-format {
    border-color: var(--teal);
    color: var(--teal);
}

@media (max-width: 640px) {
    .asset-link {
        grid-template-columns: 68px 1fr auto;
        column-gap: 1rem;
    }
    .asset-thumb {
        width: 68px;
        height: 52px;
        padding: 8px;
    }
    .asset-format {
        display: none;
    }
}

/* Footer */
.footer {
    background-color: var(--navy);
    color: var(--white);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-4xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: var(--space-2xl);
    align-items: start;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    display: block;
    margin-bottom: var(--space-sm);
}

.footer-logo-img {
    max-width: 180px;
    height: auto;
    opacity: 0.9;
}

.footer-brand p {
    color: rgba(244, 242, 230, 0.6);
    margin: 0;
    font-size: var(--text-small);
}

.footer-info p {
    color: rgba(244, 242, 230, 0.5);
    margin: 0;
    margin-bottom: var(--space-xs);
    text-align: right;
    font-size: var(--text-small);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: rgba(244, 242, 230, 0.4);
    font-size: var(--text-xs);
    margin: 0;
    letter-spacing: var(--tracking-wide);
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: var(--space-md) var(--space-xl);
    background-color: var(--navy);
    color: var(--cream);
    border-radius: var(--radius-pill);
    font-size: var(--text-small);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 9999;
    box-shadow: var(--shadow-xl);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Responsive Design */
@media (max-width: 960px) {
    .hero {
        grid-template-columns: 1fr;
        grid-template-rows: 42vh 1fr;
        min-height: auto;
    }

    .hero-image::after {
        background: linear-gradient(180deg, rgba(18, 26, 36, 0) 55%, var(--navy) 100%);
    }

    .hero-frame {
        padding: clamp(1.75rem, 5vh, 2.75rem) clamp(1.5rem, 5vw, 2.5rem) clamp(2rem, 5vh, 2.5rem);
        gap: clamp(1.5rem, 4vh, 2.5rem);
    }
}

@media (max-width: 768px) {
    .hero-masthead-rule {
        flex-basis: 36px;
    }

    .hero-audience {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1px auto;
        column-gap: 0;
        row-gap: 1.25rem;
        padding-top: 1.25rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--space-3xl) var(--space-xl);
        gap: var(--space-lg);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        color: var(--navy);
        font-size: 1rem;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .floating-toggle {
        bottom: 16px;
        right: 16px;
    }

    .section-title {
        font-size: 2rem;
    }

    .logo-variations-grid {
        grid-template-columns: 1fr;
    }

    .clearspace-demo {
        grid-template-columns: 1fr;
    }

    .donts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .footer-info {
        text-align: left;
    }

    .footer-info p {
        text-align: left;
    }

}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .minsize-examples {
        flex-direction: column;
        align-items: center;
    }
}

/* ==========================================
   Mode-Specific Styling - COMPREHENSIVE
   ========================================== */

/* Mode indicator badge on page */
body[data-mode]::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--teal) 0%, var(--teal-light) 100%);
    z-index: 10000;
}

body[data-mode="ecp"]::before {
    background: linear-gradient(90deg, var(--purple) 0%, var(--teal) 100%);
}

/* ==========================================
   ECP MODE (Dark Theme) - Full Page Styling
   ========================================== */

/* Core page backgrounds */
body[data-mode="ecp"] {
    background-color: #121A24 !important;
}

body[data-mode="ecp"] .main {
    background-color: #121A24 !important;
}

body[data-mode="ecp"] section.section {
    background-color: #121A24 !important;
}

body[data-mode="ecp"] section.section.section-alt {
    background-color: #1e2d3d !important;
}

/* Also target by ID for maximum specificity */
body[data-mode="ecp"] #introduction,
body[data-mode="ecp"] #brand-system,
body[data-mode="ecp"] #logo,
body[data-mode="ecp"] #typography,
body[data-mode="ecp"] #downloads {
    background-color: #121A24 !important;
}

body[data-mode="ecp"] #brand-personality,
body[data-mode="ecp"] #colors,
body[data-mode="ecp"] #imagery {
    background-color: #1e2d3d !important;
}

/* Logo switching based on mode */
.logo-for-dark {
    display: none;
}

.logo-for-light {
    display: block;
}

body[data-mode="ecp"] .logo-for-light {
    display: none !important;
}

body[data-mode="ecp"] .logo-for-dark {
    display: block !important;
}

/* Mode-adaptive logo display background */
body[data-mode="ecp"] .logo-display.mode-adaptive-bg,
body[data-mode="ecp"] .logo-minsize.mode-adaptive-bg {
    background-color: var(--navy-dark) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

/* Override ALL cream backgrounds in ECP mode - using Deep Black for contrast */
body[data-mode="ecp"] .clearspace-visual,
body[data-mode="ecp"] .logo-minsize {
    background-color: #1A1A1A !important;
}

/* Navigation */
body[data-mode="ecp"] .nav.scrolled {
    background-color: rgba(18, 26, 36, 0.88);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body[data-mode="ecp"] .nav.scrolled .nav-logo-dark {
    display: none;
}

body[data-mode="ecp"] .nav.scrolled .nav-logo-white {
    display: block;
}

body[data-mode="ecp"] .nav.scrolled .nav-menu a {
    color: rgba(255, 255, 255, 0.9);
}

body[data-mode="ecp"] .nav.scrolled .nav-menu a:hover,
body[data-mode="ecp"] .nav.scrolled .nav-menu a.active {
    color: var(--teal);
}

body[data-mode="ecp"] .nav.scrolled .nav-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

body[data-mode="ecp"] .nav.scrolled .nav-toggle span {
    background-color: var(--white);
}

/* Text colors */
body[data-mode="ecp"] .section-title::after {
    background-color: var(--purple);
}

body[data-mode="ecp"] .section-intro {
    color: var(--gray-400);
}

body[data-mode="ecp"] .subsection-title {
    color: var(--white);
}

body[data-mode="ecp"] p {
    color: var(--gray-300);
}

body[data-mode="ecp"] li {
    color: var(--gray-300);
}

/* Logo section */
body[data-mode="ecp"] .logo-display.primary {
    background-color: var(--navy-light);
    border-color: rgba(255, 255, 255, 0.1);
}

body[data-mode="ecp"] .logo-display.on-white {
    background-color: var(--white);
}

body[data-mode="ecp"] .logo-note {
    color: var(--gray-400);
}

body[data-mode="ecp"] .logo-variation p {
    color: var(--gray-400);
}

body[data-mode="ecp"] .clearspace-visual {
    background-color: rgba(255, 255, 255, 0.05);
}

body[data-mode="ecp"] .logo-with-clearspace {
    border-color: var(--teal);
}

body[data-mode="ecp"] .logo-minsize {
    background-color: rgba(255, 255, 255, 0.05);
}

body[data-mode="ecp"] .minsize-item p {
    color: var(--gray-400);
}

body[data-mode="ecp"] .minsize-item p strong {
    color: var(--white);
}

/* Don'ts grid — ECP */
body[data-mode="ecp"] .dont-visual {
    background-color: rgba(255, 255, 255, 0.06);
}

body[data-mode="ecp"] .wrong-font-text {
    color: var(--white);
}

/* Color swatches — ECP */
body[data-mode="ecp"] .swatch-values .color-code {
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--white);
}

body[data-mode="ecp"] .contrast-badge {
    border-color: rgba(255, 255, 255, 0.15);
}

/* Footer */
body[data-mode="ecp"] .footer {
    background-color: #0a1018;
}

/* Toast */
body[data-mode="ecp"] .toast {
    background-color: var(--white);
    color: var(--navy);
}

/* ==========================================
   DESIGN ELEVATION - All Phases
   ========================================== */

/* Phase 1A: Scroll-Triggered Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-stagger.revealed > * {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.25s; }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.3s; }
.reveal-stagger.revealed > *:nth-child(7) { transition-delay: 0.35s; }
.reveal-stagger.revealed > *:nth-child(8) { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-stagger > * {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero-frame {
        animation: none;
        opacity: 1;
        transform: none;
    }
    .hero-image-layer {
        transition: none;
    }
}

/* Subtle grain over hero image for editorial print feel */
.hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    opacity: 0.06;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
    mix-blend-mode: overlay;
}

/* Phase 1C: Scroll Progress Bar */
.scroll-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--teal), var(--teal-light));
    z-index: 10;
    transition: width 50ms linear;
}

body[data-mode="ecp"] .scroll-progress {
    background: linear-gradient(90deg, var(--purple), var(--teal));
}

/* Phase 1D: Active Nav Animated Underline */
.nav-menu a {
    position: relative;
    border-bottom: none;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--teal);
    border-radius: 1px;
    transition: width var(--transition-base), left var(--transition-base);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
    left: 0;
}

/* Phase 4A: Section Gradient Dividers */
.section-alt {
    position: relative;
}

.section-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, var(--white), var(--cream));
    pointer-events: none;
    z-index: 1;
}

body[data-mode="ecp"] .section-alt::before {
    background: linear-gradient(to bottom, #121A24, #1e2d3d);
}

/* Phase 5A: Back to Top Button */
.back-to-top {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    height: 44px;
    padding: 0 1.1rem 0 0.9rem;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--cream);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.back-to-top:hover {
    background-color: var(--teal);
    border-color: var(--teal);
    color: var(--white);
    transform: translateY(-3px);
    opacity: 1;
}

.back-to-top svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.back-to-top-label {
    line-height: 1;
}

.footer-email {
    color: var(--cream);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: color var(--transition-base);
}

.footer-email:hover {
    color: var(--teal);
}

/* Footer resources column */
.footer-resources h5 {
    color: rgba(244, 242, 230, 0.6);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-bottom: var(--space-md);
}

.footer-resources a {
    display: block;
    color: rgba(244, 242, 230, 0.5);
    font-size: var(--text-small);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

.footer-resources a:hover {
    color: var(--teal);
    opacity: 1;
}

/* Copy button press feedback */
.color-code:active {
    transform: scale(0.97);
}

/* Print Styles */
@media print {
    .nav,
    .nav-toggle,
    .toast {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: var(--space-xl);
        background: var(--navy);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .section {
        page-break-inside: avoid;
    }

    .swatch-color {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}