/* ═══════════════════════════════════════════════════════════
   PBS BRAND GUIDELINES — STYLESHEET
   Public Builders & Suppliers · v1.0 · May 2026
   ═══════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─── */
:root {
    --color-primary:        #3C3C3E;
    --color-primary-dark:   #1A1A1C;
    --color-primary-light:  #5A5A5C;

    --color-accent:         #C9A96E;
    --color-accent-dark:    #A68B4B;
    --color-accent-light:   #D4BC8A;
    --color-cta:            #2A9D8F;
    --color-cta-hover:      #238578;

    --color-text:           #3C3C3E;
    --color-text-secondary: #6B6B70;
    --color-text-muted:     #B0B0B5;
    --color-border:         #EDEDEF;
    --color-surface:        #FFFFFF;
    --color-background:     #F7F7F8;

    --color-success:        #2D8F5E;
    --color-warning:        #E8A838;
    --color-error:          #C4453A;

    --font-heading: 'Montserrat', sans-serif;
    --font-body:    'Inter', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;

    --space-xs:   4px;
    --space-sm:   8px;
    --space-md:   16px;
    --space-lg:   24px;
    --space-xl:   32px;
    --space-2xl:  48px;
    --space-3xl:  64px;
    --space-4xl:  96px;

    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;

    --shadow-sm:  0 1px 3px rgba(26,26,28,0.06);
    --shadow-md:  0 4px 12px rgba(26,26,28,0.08);
    --shadow-lg:  0 8px 30px rgba(26,26,28,0.12);
    --shadow-xl:  0 16px 50px rgba(26,26,28,0.16);

    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.625;
    color: var(--color-text);
    background: var(--color-background);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(60,60,62,0.08);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* ─── Container ─── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ─── Navigation ─── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(247, 247, 248, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(237, 237, 239, 0.6);
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(247, 247, 248, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-mark {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-primary);
    letter-spacing: 3px;
}

.nav-logo-divider {
    width: 1px;
    height: 20px;
    background: var(--color-border);
}

.nav-logo-text {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(247, 247, 248, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
    padding: var(--space-lg);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-menu a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: var(--space-sm) 0;
    display: block;
}

/* ─── Hero Section ─── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px var(--space-lg) 80px;
    position: relative;
    background: var(--color-background);
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(60,60,62,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(60,60,62,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 30%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    background: rgba(201, 169, 110, 0.1);
    border: 1px solid rgba(201, 169, 110, 0.2);
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: var(--space-2xl);
    animation: fadeInDown 0.8s ease forwards;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 1.05;
    color: var(--color-primary-dark);
    letter-spacing: -2px;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-title-line {
    display: block;
}

.hero-title-accent {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-meta-label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.hero-meta-value {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.hero-meta-divider {
    width: 1px;
    height: 36px;
    background: var(--color-border);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.hero-scroll-indicator span {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.hero-scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease infinite;
}

/* ─── Sections ─── */
.section {
    padding: var(--space-4xl) 0;
    background: var(--color-surface);
}

.section-dark {
    background: var(--color-primary-dark);
    color: #FFFFFF;
}

.section-header {
    margin-bottom: var(--space-3xl);
    max-width: 700px;
}

.section-number {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: var(--space-lg);
}

.section-desc {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.section-dark .section-desc {
    color: rgba(255,255,255,0.6);
}

.subsection-title {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.3px;
}

.subsection-title-light {
    color: #FFFFFF;
}

.subsection-desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 700px;
    line-height: 1.7;
}

/* ─── Brand Overview ─── */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.overview-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.overview-card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(201,169,110,0.2);
    transform: translateY(-2px);
}

.overview-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201,169,110,0.12);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    color: var(--color-accent);
}

.overview-icon svg {
    width: 22px;
    height: 22px;
}

.overview-card h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
    color: #FFFFFF;
}

.overview-card p {
    font-size: 0.9rem;
    line-height: 1.65;
    color: rgba(255,255,255,0.55);
}

/* ─── Logo Showcase ─── */
.logo-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.logo-showcase-3 {
    grid-template-columns: repeat(3, 1fr);
}

.logo-display {
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
}

.logo-display-label {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid;
}

.logo-display-light {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
}

.logo-display-light .logo-display-label {
    color: var(--color-text-muted);
    border-color: var(--color-border);
}

.logo-display-dark {
    background: var(--color-primary-dark);
    border: 1px solid rgba(255,255,255,0.08);
}

.logo-display-dark .logo-display-label {
    color: rgba(255,255,255,0.4);
    border-color: rgba(255,255,255,0.08);
}

.logo-display-brand {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.logo-display-brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(201,169,110,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.logo-display-brand .logo-display-label {
    color: var(--color-accent-dark);
    border-color: var(--color-border);
    position: relative;
    z-index: 1;
}

.logo-display-content {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl) var(--space-2xl);
    min-height: 280px;
}

.logo-img {
    max-width: 200px;
    max-height: 180px;
    object-fit: contain;
}

/* ─── Lockup Grid ─── */
.lockup-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.lockup-card {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.lockup-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl) var(--space-lg);
    margin-bottom: var(--space-md);
}

.lockup-preview-stacked {
    flex-direction: column;
    gap: var(--space-sm);
}

.lockup-svg {
    width: 60px;
    height: auto;
}

.lockup-logo-img {
    width: 90px;
    height: auto;
    object-fit: contain;
}

.lockup-text {
    text-align: left;
}

.lockup-text-center {
    text-align: center;
}

.lockup-name {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 2px;
    color: var(--color-primary);
}

.lockup-tagline {
    display: block;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    color: var(--color-text-secondary);
}

.lockup-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ─── Logo Construction ─── */
.logo-construction {
    margin-bottom: var(--space-xl);
}

.logo-construction-card {
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    padding: var(--space-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.logo-construction-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.logo-construction-img {
    max-width: 600px;
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* ─── Clear Space ─── */
.clearspace-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.clearspace-card {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.clearspace-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    background: #FFFFFF;
}

.clearspace-box {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-sm);
}

.clearspace-mark {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: 3px;
}

.clearspace-line {
    position: absolute;
    background: var(--color-accent);
}

.clearspace-top {
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    width: 1px;
    height: 20px;
}

.clearspace-right {
    right: 0;
    top: 50%;
    transform: translateY(-50%) translateX(100%);
    width: 20px;
    height: 1px;
}

.clearspace-bottom {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    width: 1px;
    height: 20px;
}

.clearspace-left {
    left: 0;
    top: 50%;
    transform: translateY(-50%) translateX(-100%);
    width: 20px;
    height: 1px;
}

.clearspace-label-x {
    position: absolute;
    right: -32px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.7rem;
    color: var(--color-accent-dark);
}

.clearspace-label-x-top {
    right: auto;
    top: -32px;
    left: 50%;
    transform: translateX(-50%);
}

.clearspace-info {
    padding: var(--space-lg);
}

.clearspace-info h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--space-sm);
    color: var(--color-primary);
}

.clearspace-info p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Min Size Demo */
.min-size-demo {
    display: flex;
    align-items: flex-end;
    gap: var(--space-2xl);
}

.min-size-print, .min-size-digital {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.min-size-mark {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: 3px;
}

.min-size-mark-sm {
    font-size: 1rem;
}

.min-size-dim {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent-dark);
    padding: 2px 8px;
    background: rgba(201,169,110,0.1);
    border-radius: var(--radius-sm);
}

/* ─── Logo Don'ts ─── */
.donts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.dont-card {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
}

.dont-preview {
    padding: var(--space-xl) var(--space-lg);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 110px;
    background: #FFFFFF;
}

.dont-preview-busy {
    background: repeating-linear-gradient(
        45deg,
        #FFFFFF,
        #FFFFFF 8px,
        #F0F0F0 8px,
        #F0F0F0 16px
    );
}

.dont-mark {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    color: var(--color-primary);
    letter-spacing: 4px;
}

.dont-stretch {
    transform: scaleX(1.5);
}

.dont-rotate {
    transform: rotate(15deg);
}

.dont-color {
    color: #E74C3C;
}

.dont-shadow {
    text-shadow: 4px 4px 8px rgba(0,0,0,0.4);
}

.dont-outline {
    -webkit-text-stroke: 2px var(--color-primary);
    color: transparent;
}

.dont-x {
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 1.2rem;
    color: var(--color-error);
    font-weight: 700;
}

.dont-label {
    display: block;
    padding: var(--space-md);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    border-top: 1px solid var(--color-border);
}

/* ─── Color Section ─── */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

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

.color-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.color-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.color-swatch {
    height: 120px;
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
    position: relative;
}

.color-card-large .color-swatch {
    height: 160px;
}

.color-role {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.7);
    background: rgba(0,0,0,0.2);
    padding: 4px 10px;
    border-radius: 100px;
}

.color-swatch-light .color-role {
    color: var(--color-text-secondary);
    background: rgba(0,0,0,0.06);
}

.color-info {
    padding: var(--space-md);
}

.color-info h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: #FFFFFF;
    margin-bottom: var(--space-sm);
}

.color-values {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.color-value {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.color-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: rgba(255,255,255,0.35);
    text-transform: uppercase;
    width: 38px;
    flex-shrink: 0;
}

.color-code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.color-code:hover {
    background: rgba(255,255,255,0.1);
}

.color-code.copied {
    background: rgba(42, 157, 143, 0.2);
    color: #2A9D8F;
}

/* ─── Color Ratio Bar ─── */
.ratio-bar {
    display: flex;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 72px;
    margin-top: var(--space-xl);
}

.ratio-segment {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: flex var(--transition-slow);
}

.ratio-seg-1 {
    background: #F7F7F8;
}

.ratio-seg-2 {
    background: #3C3C3E;
}

.ratio-seg-3 {
    background: #C9A96E;
}

.ratio-seg-4 {
    background: #2A9D8F;
}

.ratio-label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.ratio-pct {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
}

.ratio-seg-1 .ratio-label,
.ratio-seg-1 .ratio-pct {
    color: var(--color-primary);
}

.ratio-seg-2 .ratio-label,
.ratio-seg-2 .ratio-pct,
.ratio-seg-3 .ratio-label,
.ratio-seg-3 .ratio-pct,
.ratio-seg-4 .ratio-label,
.ratio-seg-4 .ratio-pct {
    color: #FFFFFF;
}

.ratio-seg-3 .ratio-label,
.ratio-seg-3 .ratio-pct {
    color: var(--color-primary-dark);
}

/* ─── Typography Section ─── */
.type-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.type-card {
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    overflow: hidden;
}

.type-card-primary {
    background: var(--color-primary-dark);
    color: #FFFFFF;
}

.type-card-secondary {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
}

.type-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.type-badge {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(201,169,110,0.12);
    padding: 6px 14px;
    border-radius: 100px;
}

.type-badge-secondary {
    color: var(--color-text-secondary);
    background: rgba(60,60,62,0.06);
}

.type-source {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
}

.type-card-secondary .type-source {
    color: var(--color-text-muted);
}

.type-specimen {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1px;
    margin-bottom: var(--space-md);
}

.type-specimen-montserrat {
    font-family: var(--font-heading);
    font-weight: 700;
}

.type-specimen-inter {
    font-family: var(--font-body);
    font-weight: 400;
}

.type-usage {
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-xl);
}

.type-card-secondary .type-usage {
    color: var(--color-text-secondary);
}

.type-weights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.type-weight {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: var(--space-md);
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-md);
    min-width: 70px;
    transition: background var(--transition-fast);
}

.type-card-secondary .type-weight {
    background: rgba(60,60,62,0.04);
}

.type-weight:hover {
    background: rgba(255,255,255,0.08);
}

.type-card-secondary .type-weight:hover {
    background: rgba(60,60,62,0.08);
}

.type-weight-active {
    background: rgba(201,169,110,0.12) !important;
    border: 1px solid rgba(201,169,110,0.2);
}

.type-weight-sample {
    font-size: 1.8rem;
}

.type-weight-name {
    font-size: 0.6rem;
    color: rgba(255,255,255,0.4);
    text-align: center;
    white-space: nowrap;
}

.type-card-secondary .type-weight-name {
    color: var(--color-text-muted);
}

.type-alphabet {
    font-size: 0.85rem;
    line-height: 2;
    color: rgba(255,255,255,0.35);
    letter-spacing: 1px;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.06);
}

.type-card-secondary .type-alphabet {
    color: var(--color-text-muted);
    border-color: var(--color-border);
}

/* ─── Type Scale ─── */
.type-scale {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.type-scale-row {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    transition: background var(--transition-fast);
}

.type-scale-row:last-child {
    border-bottom: none;
}

.type-scale-row:hover {
    background: rgba(60,60,62,0.02);
}

.type-scale-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.type-scale-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    background: rgba(201,169,110,0.08);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    min-width: 60px;
    text-align: center;
}

.type-scale-spec {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.type-scale-sample {
    color: var(--color-primary);
    display: block;
}

/* ─── Text Logo Guide ─── */
.text-logo-guide {
    margin-top: var(--space-lg);
}

.text-logo-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-xl);
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.text-logo-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    padding: var(--space-2xl);
}

.text-logo-img {
    max-width: 120px;
    max-height: 100px;
    object-fit: contain;
}

.text-logo-info {
    padding: var(--space-xl);
}

.text-logo-info h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.text-logo-info ul {
    margin-bottom: var(--space-lg);
}

.text-logo-info li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding: 4px 0;
    padding-left: 16px;
    position: relative;
}

.text-logo-info li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.text-logo-spec {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    padding: var(--space-md);
    background: rgba(60,60,62,0.04);
    border-radius: var(--radius-md);
    line-height: 1.7;
}

/* ─── Web Color Mapping ─── */
.web-color-map {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.web-color-item {
    text-align: center;
}

.web-color-preview {
    height: 100px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    overflow: hidden;
    padding: var(--space-sm);
}

.web-color-mock-nav {
    border-radius: 4px 4px 0 0;
    margin-bottom: var(--space-xs);
}

.web-color-mock-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-xs);
}

.web-color-item h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8rem;
    color: #FFFFFF;
    margin-bottom: 4px;
}

.web-color-hex {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: rgba(255,255,255,0.45);
}

/* ─── Code Block ─── */
.code-block {
    background: #0D0D0E;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-xl);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.code-lang {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.code-copy-btn {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-accent);
    background: none;
    border: 1px solid rgba(201,169,110,0.3);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.code-copy-btn:hover {
    background: rgba(201,169,110,0.1);
    border-color: var(--color-accent);
}

.code-content {
    padding: var(--space-lg);
    overflow-x: auto;
}

.code-content code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.75);
    background: none;
    padding: 0;
}

/* ─── Button Showcase ─── */
.button-showcase {
    margin-bottom: var(--space-xl);
}

.button-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.button-demo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    text-align: center;
}

.btn {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(201,169,110,0.3);
}

.btn-secondary {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(60,60,62,0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-cta);
    border-color: transparent;
    letter-spacing: 0.5px;
    text-transform: none;
    font-family: var(--font-body);
    font-weight: 500;
}

.btn-ghost:hover {
    color: var(--color-cta-hover);
    text-decoration: underline;
}

.btn-label {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    color: #FFFFFF;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.btn-spec {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.5;
}

/* ─── Layout Guidelines ─── */
.layout-guidelines {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.layout-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.layout-card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(201,169,110,0.15);
}

.layout-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.layout-icon svg {
    width: 24px;
    height: 24px;
}

.layout-card h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    color: #FFFFFF;
    margin-bottom: var(--space-sm);
}

.layout-card p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.5);
}

.layout-card code {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-accent);
    background: rgba(201,169,110,0.1);
    padding: 1px 5px;
    border-radius: 3px;
}

/* ─── Applications ─── */
.app-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.app-card {
    text-align: center;
}

.app-mockup {
    background: #F7F7F8;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    margin-bottom: var(--space-md);
    transition: all var(--transition-base);
}

.app-mockup:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.app-label {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Business Card */
.bc-front {
    width: 280px;
    height: 170px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: left;
}

.bc-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: 4px;
    color: var(--color-primary);
}

.bc-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-top: auto;
}

.bc-title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.bc-divider {
    width: 30px;
    height: 2px;
    background: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.bc-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bc-details span {
    font-size: 0.65rem;
    color: var(--color-text-secondary);
}

/* Letterhead */
.letterhead-mockup {
    padding: var(--space-md);
}

.letterhead-mockup > div {
    width: 220px;
    height: 300px;
    background: #FFFFFF;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
}

.lh-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.lh-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--color-primary);
}

.lh-company {
    display: flex;
    flex-direction: column;
}

.lh-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.45rem;
    letter-spacing: 1px;
    color: var(--color-primary);
}

.lh-address {
    font-size: 0.35rem;
    color: var(--color-text-muted);
}

.lh-gold-line {
    height: 2px;
    background: linear-gradient(to right, var(--color-accent), transparent);
    margin-bottom: var(--space-lg);
}

.lh-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.lh-line {
    height: 3px;
    background: #EDEDEF;
    border-radius: 2px;
}

.lh-spacer {
    height: 10px;
}

.lh-footer {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-xs);
    text-align: center;
}

.lh-footer span {
    font-family: var(--font-heading);
    font-size: 0.35rem;
    color: var(--color-text-muted);
    letter-spacing: 0.5px;
}

/* Social Media */
.social-mockup {
    min-height: 320px;
}

.social-post {
    width: 250px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.social-img {
    height: 250px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    position: relative;
}

.social-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-lg);
    text-align: center;
    gap: var(--space-md);
}

.social-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 5px;
    color: var(--color-accent);
}

.social-headline {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    color: #FFFFFF;
    line-height: 1.3;
}

.social-cta-tag {
    font-family: var(--font-heading);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 4px 12px;
    border-radius: 100px;
}

/* Helmet */
.helmet-mockup {
    min-height: 260px;
}

.helmet-shape {
    width: 140px;
    height: 110px;
    background: var(--color-accent);
    border-radius: 70px 70px 10px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    position: relative;
    box-shadow: var(--shadow-md);
}

.helmet-shape::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: -8px;
    right: -8px;
    height: 10px;
    background: var(--color-accent-dark);
    border-radius: 0 0 6px 6px;
}

.helmet-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 4px;
    color: var(--color-primary-dark);
}

.helmet-stripe {
    width: 60%;
    height: 3px;
    background: var(--color-primary-dark);
    border-radius: 2px;
}

/* ─── Summary Grid ─── */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.summary-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.summary-card h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
}

.summary-swatch {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.summary-swatch-light {
    border: 1px solid rgba(255,255,255,0.15);
}

.summary-card span {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
}

.summary-font {
    font-size: 1.3rem !important;
    color: #FFFFFF !important;
    font-family: inherit;
}

/* ─── Footer ─── */
.footer {
    background: var(--color-primary-dark);
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: var(--space-2xl) 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 4px;
    color: var(--color-accent);
}

.footer-text {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.5;
}

.footer-note p {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.25);
    font-style: italic;
}

/* ─── Animations ─── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scrollPulse {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.5);
        opacity: 0.4;
    }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }

    .type-showcase {
        grid-template-columns: 1fr;
    }

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

    .web-color-map {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: var(--space-3xl) 0;
    }

    .logo-showcase,
    .logo-showcase-3 {
        grid-template-columns: 1fr;
    }

    .lockup-grid {
        grid-template-columns: 1fr;
    }

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

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

    .color-grid-primary {
        grid-template-columns: 1fr;
    }

    .button-row {
        grid-template-columns: 1fr;
    }

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

    .layout-guidelines {
        grid-template-columns: 1fr;
    }

    .app-grid {
        grid-template-columns: 1fr;
    }

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

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

    .hero-meta {
        flex-direction: column;
        gap: var(--space-md);
    }

    .hero-meta-divider {
        width: 40px;
        height: 1px;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }

    .ratio-bar {
        height: 56px;
    }

    .ratio-label {
        font-size: 0.5rem;
    }

    .ratio-pct {
        font-size: 0.6rem;
    }
}

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

    .donts-grid {
        grid-template-columns: 1fr;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }
}