/* ===============================================
   GSD Agency - Design System
   Version: 1.0
   =============================================== */

/* ================= FONTS ================= */
@font-face {
    font-family: 'OPPO Sans';
    src: url('fonts/OPPOSans4.0-VF.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Impact';
    src: url('fonts/Impact.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

/* ================= DESIGN TOKENS ================= */
:root {
    color-scheme: light dark;
    
    /* === Colors === */
    --color-primary: #E83A3A;          /* GSD Red */
    --color-secondary: #1A0C2F;        /* Deep Purple */
    --color-accent: #b8e0e0;           /* Cyan for CTA */
    --color-dark: #0a0612;             /* Near Black */
    
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* === Typography === */
    --font-primary: 'OPPO Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-impact: 'Impact', 'Arial Black', sans-serif;
    
    /* Font Sizes - Simplified (3 sizes) */
    --text-sm: 0.875rem;      /* 14px - 小字/标签 */
    --text-base: 1rem;        /* 16px - 正文 */
    --text-lg: 1.25rem;       /* 20px - 中等标题 */
    
    /* Font Weights - Simplified (3 weights) */
    --font-normal: 400;
    --font-medium: 500;
    --font-bold: 700;
    
    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
    
    /* Letter Spacing */
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.05em;
    --tracking-wider: 0.1em;
    --tracking-widest: 0.2em;
    
    /* === Spacing === */
    --space-1: 0.25rem;       /* 4px */
    --space-2: 0.5rem;        /* 8px */
    --space-3: 0.75rem;       /* 12px */
    --space-4: 1rem;          /* 16px */
    --space-5: 1.25rem;       /* 20px */
    --space-6: 1.5rem;        /* 24px */
    --space-8: 2rem;          /* 32px */
    --space-10: 2.5rem;       /* 40px */
    --space-12: 3rem;         /* 48px */
    --space-16: 4rem;         /* 64px */
    --space-20: 5rem;         /* 80px */
    --space-24: 6rem;         /* 96px */
    
    /* === Layout === */
    --container-padding: var(--space-8);
    --section-padding-y: var(--space-16);
    --header-height: 60px;
    
    /* Section Heights */
    --hero-height: 50vh;
    --project-card-height: 35vh;
    --image-full-height: 70vh;
    --image-grid-height: 50vh;
    
    /* === Transitions === */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 700ms ease-out;
    
    /* === Borders === */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-full: 9999px;
    --border-width: 1px;
}

/* Desktop Overrides */
@media (min-width: 900px) {
    :root {
        --container-padding: var(--space-16);
        --section-padding-y: var(--space-20);
        --header-height: 70px;
        
        --hero-height: 56vh;
        --project-card-height: 40vh;
        --image-full-height: 80vh;
        --image-grid-height: 60vh;
    }
}


/* ================= RESET & BASE ================= */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ================= TYPOGRAPHY SYSTEM ================= */

/* Page Titles - Large Headlines */
.title-hero {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-none);
    letter-spacing: var(--tracking-tight);
    text-transform: uppercase;
}

@media (min-width: 900px) {
    .title-hero {
        font-size: var(--text-6xl);
    }
}

/* Section Titles */
.title-section {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    text-transform: uppercase;
}

@media (min-width: 900px) {
    .title-section {
        font-size: var(--text-4xl);
    }
}

/* Content Titles */
.title-content {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    text-transform: uppercase;
}

@media (min-width: 900px) {
    .title-content {
        font-size: var(--text-2xl);
    }
}

/* Card Titles */
.title-card {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
}

@media (min-width: 900px) {
    .title-card {
        font-size: var(--text-lg);
    }
}

/* Labels & Small Titles */
.title-label {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

/* Body Text */
.text-body {
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-relaxed);
    color: var(--color-black);
}

/* Small Text */
.text-small {
    font-size: var(--text-sm);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--color-gray-500);
}

/* Caption Text */
.text-caption {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--color-gray-400);
}

/* Italic Accent (for headlines) */
.text-italic {
    /* font-style removed */
}

/* ================= LAYOUT ================= */
.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.section {
    padding-top: var(--section-padding-y);
    padding-bottom: var(--section-padding-y);
}

.section-sm {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-1);
}

@media (min-width: 900px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-1);
}

@media (min-width: 900px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Content Layout (Label + Text) */
.content-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 900px) {
    .content-row {
        grid-template-columns: 180px 1fr;
        gap: var(--space-12);
    }
}

/* ================= COMPONENTS ================= */

/* === Header === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    padding: 0 var(--container-padding);
    background-color: var(--color-secondary);
}

.site-logo .logo-img {
    height: 22px;
    width: auto;
}

.main-nav {
    display: none;
    align-items: center;
    gap: var(--space-10);
}

@media (min-width: 900px) {
    .main-nav {
        display: flex;
    }
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-white);
    transition: color var(--transition-base);
}

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

.lang-switch {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: rgba(255, 255, 255, 0.5);
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-white);
    font-size: var(--text-xl);
}

@media (min-width: 900px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 99;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    background-color: var(--color-secondary);
    transform: translateX(100%);
    transition: transform var(--transition-base);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu a {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-white);
}

.mobile-menu-close {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-size: var(--text-3xl);
    color: var(--color-white);
}

@media (min-width: 900px) {
    .mobile-menu {
        display: none;
    }
}


/* === Footer === */
.site-footer {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6) 10%;
    background-color: var(--color-white);
    border-top: var(--border-width) solid var(--color-gray-200);
}

@media (min-width: 900px) {
    .site-footer {
        justify-content: space-between;
    }
}

.footer-nav {
    display: none;
    gap: var(--space-8);
}

@media (min-width: 900px) {
    .footer-nav {
        display: flex;
    }
}

.footer-link {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-black);
}

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

.footer-copyright {
    font-size: var(--text-base);
    color: var(--color-gray-500);
}

/* === CTA Divider === */
.cta-divider {
    height: 20px;
    background-color: var(--color-accent);
}

/* === CTA Footer === */
.cta-footer {
    display: block;
    position: relative;
    padding: 30px 10%;
    background-color: var(--color-dark);
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.cta-footer:hover {
    opacity: 0.9;
}

.cta-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.cta-title {
    font-size: clamp(1.5rem, 6.75vw, 9.5rem);
    font-weight: var(--font-bold);
    color: var(--color-accent);
    letter-spacing: var(--tracking-tight);
    text-align: right;
    line-height: 1;
    margin-bottom: 0;
    white-space: nowrap;
}

.cta-subtitle {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 5px;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    border: var(--border-width) solid var(--color-black);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-black);
    border: 2px solid var(--color-black);
}

.btn-outline:hover {
    color: var(--color-black);
    border-color: var(--color-black);
}

/* === Tags === */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-black);
    background-color: var(--color-white);
    border: var(--border-width) solid var(--color-black);
    border-radius: var(--radius-full);
}

.tag-light {
    color: rgba(255, 255, 255, 0.7);
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.3);
}

.tags-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* === Divider === */
.divider {
    width: 100%;
    height: var(--border-width);
    background-color: var(--color-gray-200);
    margin: var(--space-8) 0;
}

/* ================= PAGE SECTIONS ================= */

/* === Hero Section (Home) === */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: var(--hero-height);
    background-color: var(--color-secondary);
    position: relative;
    overflow: hidden;
}

/* Hero Slider - Banner 完整显示 */
.hero-slider {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.hero-slide {
    display: none;
    width: 100%;
}

.hero-slide.active {
    display: block;
}

.hero-slide-bg {
    width: 100%;
    height: auto;
    display: block;
}

.hero-indicators {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-2);
    z-index: 10;
}

.hero-indicator {
    width: var(--space-8);
    height: 3px;
    background-color: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.hero-indicator:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.hero-indicator.active {
    width: var(--space-12);
    background-color: var(--color-primary);
}

/* === Brand Statement === */
.brand-statement {
    padding: var(--space-6) var(--container-padding);
    background-color: var(--color-white);
}

.brand-statement .subtitle {
    font-size: 1rem;
    font-weight: var(--font-bold);
    color: var(--color-black);
    margin-bottom: var(--space-2);
}

@media (min-width: 900px) {
    .brand-statement {
        padding: var(--space-10) var(--container-padding);
    }
    
    .brand-statement .subtitle {
        font-size: 1.5rem;
    }
}

.brand-statement h1 {
    font-size: clamp(1.1rem, 3.5vw, 2.5rem);
    font-weight: var(--font-bold);
    color: var(--color-black);
    line-height: 1.3;
}

@media (min-width: 900px) {
    .brand-statement h1 {
        font-size: clamp(2rem, 3.5vw, 3rem);
    }
}

.brand-statement .headline-word {
    font-weight: var(--font-bold);
}

.brand-statement .and-text {
    font-size: 1em;
    font-weight: var(--font-normal);
    font-style: normal;
}

/* === Projects Header === */
.projects-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    padding: calc(var(--space-6) + 10px) var(--container-padding);
    background-color: var(--color-white);
}

/* Projects Page Header - 大标题样�?*/
.projects-page-header {
    display: block;
    padding: var(--space-12) var(--container-padding) var(--space-8);
}

.projects-page-header .projects-title {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: var(--font-medium);
    line-height: var(--leading-tight);
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

@media (min-width: 900px) {
    .projects-page-header .projects-title {
        font-size: clamp(2.5rem, 5vw, 4.5rem);
    }
}

.projects-header .title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* === Project Card - 完整显示，高度自适应 === */
.project-card {
    display: block;
    position: relative;
    width: 100%;
    overflow: hidden;
    cursor: pointer;
}

.project-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slower);
}

.project-card:hover img {
    transform: scale(1.03);
}

.project-card-info {
    position: absolute;
    bottom: var(--space-4);
    right: var(--space-4);
    text-align: right;
    z-index: 10;
    max-width: 70%;
}

@media (min-width: 900px) {
    .project-card-info {
        bottom: var(--space-8);
        right: var(--space-8);
        max-width: 60%;
    }
}

.project-card-title {
    font-size: var(--text-sm);
    font-weight: var(--font-normal);
    color: var(--color-white);
    margin-bottom: 0;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

@media (min-width: 900px) {
    .project-card-title {
        font-size: var(--text-base);
    }
}

.project-card-subtitle {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-3);
}

.project-card .tags-group {
    justify-content: flex-end;
}

/* === Stats Section === */
.stats-section {
    padding: var(--section-padding-y) var(--container-padding);
    background-color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

@media (min-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.stat-number {
    font-family: var(--font-impact);
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: var(--font-bold);
    color: var(--color-black);
    line-height: var(--leading-none);
}

@media (min-width: 900px) {
    .stat-number {
        font-size: clamp(5rem, 8vw, 10rem);
    }
}

.stat-number sub {
    font-size: 0.5em;
    vertical-align: baseline;
}

.stat-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-gray-500);
    margin-top: var(--space-2);
}


/* ================= CATALOG PAGE ================= */
.catalog-hero {
    padding: var(--space-8) var(--container-padding) var(--space-6);
    background-color: var(--color-white);
}

@media (min-width: 900px) {
    .catalog-hero {
        padding: var(--space-12) var(--container-padding) var(--space-8);
    }
}

.catalog-title {
    font-size: clamp(1.5rem, 8vw, 4rem);
    font-weight: var(--font-medium);
    line-height: var(--leading-tight);
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

@media (min-width: 900px) {
    .catalog-title {
        font-size: clamp(2.5rem, 5vw, 4.5rem);
        margin-bottom: var(--space-6);
    }
}

/* Catalog Item */
.catalog-item {
    display: block;
    margin-bottom: var(--space-16);
    text-decoration: none;
    color: inherit;
}

.catalog-item-image {
    width: 100%;
    height: 50vw;
    min-height: 200px;
    overflow: hidden;
    margin-bottom: var(--space-6);
}

@media (min-width: 900px) {
    .catalog-item-image {
        height: calc(var(--project-card-height) * 1.5);
        min-height: auto;
    }
}

.catalog-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slower);
}

.catalog-item:hover .catalog-item-image img {
    transform: scale(1.02);
}

.catalog-item-info {
    padding: 0 var(--container-padding);
}

.catalog-item-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.catalog-item-desc {
    font-size: var(--text-base);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
    max-width: 600px;
}

/* ================= DETAIL PAGE ================= */
.detail-header {
    padding: var(--space-8) 10%;
    background-color: var(--color-white);
}

.detail-title-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--space-4);
}

.detail-title {
    font-size: clamp(1.5rem, 5vw, 3rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    text-transform: uppercase;
    max-width: 80%;
}

@media (min-width: 900px) {
    .detail-title {
        font-size: clamp(2rem, 4vw, 3.5rem);
    }
}

.detail-hero-image {
    width: 100%;
    height: 50vh;
    overflow: hidden;
}

@media (min-width: 900px) {
    .detail-hero-image {
        height: var(--hero-height);
    }
}

.detail-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Content Section */
.content-section {
    padding: var(--space-12) 10%;
}

.client-info {
    font-size: 1rem;
    color: var(--color-black);
    margin-bottom: var(--space-8);
}

.client-info span {
    color: var(--color-black);
    font-weight: var(--font-semibold);
}

.content-label {
    font-size: clamp(1.75rem, 3vw, 2rem);
    font-weight: var(--font-bold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    line-height: var(--leading-tight);
    white-space: nowrap;
}

.content-text {
    font-size: var(--text-base);
    color: var(--color-black);
    line-height: var(--leading-relaxed);
}

.content-text p + p {
    margin-top: var(--space-4);
}

/* Content Block Layout (1/4 + 3/4) */
.content-block {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 900px) {
    .content-block {
        grid-template-columns: 1fr 3fr;
        gap: var(--space-8);
    }
}

/* Image Sections - 文章内页图片 */
.image-full {
    width: 100%;
}

.image-full img {
    width: 100%;
    height: auto;
    display: block;
}

.image-grid-item {
    height: var(--image-grid-height);
    overflow: hidden;
}

.image-grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slower);
}

.image-grid-item:hover img {
    transform: scale(1.03);
}

/* Image Grid Layouts - 文章内页网格 */
.image-grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

@media (min-width: 900px) {
    .image-grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

.image-grid-3 > div {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.image-grid-3 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slower);
}

.image-grid-3 > div:hover img {
    transform: scale(1.03);
}

.image-grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 10px;
}

@media (min-width: 900px) {
    .image-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.image-grid-2 > div {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.image-grid-2 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slower);
}

.image-grid-2 > div:hover img {
    transform: scale(1.03);
}

/* ================= ABOUT PAGE ================= */
.about-hero {
    width: 100%;
    height: 40vh;
    overflow: hidden;
}

@media (min-width: 900px) {
    .about-hero {
        height: 50vh;
    }
}

.about-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-intro {
    padding: var(--space-12) var(--container-padding);
    background-color: var(--color-white);
}

/* Dark red intro section */
.about-intro-dark {
    background-color: #110101;
    padding: var(--space-16) 10vw;
    border-top: 5px solid #d22f34;
}

.about-intro-dark .intro-title {
    color: var(--color-white);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: var(--font-normal);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-8);
    max-width: 70%;
}

@media (min-width: 900px) {
    .about-intro-dark .intro-title {
        font-size: clamp(1.8rem, 2.5vw, 2.8rem);
    }
}

.about-intro-dark p {
    color: var(--color-white);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    max-width: 100%;
}

.about-intro-dark .intro-highlight {
    color: var(--color-white);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-4);
    padding-right: 0;
    max-width: 100%;
}

.about-intro-dark .intro-desc {
    margin-top: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    padding-top: var(--space-4);
    padding-right: 0;
    color: var(--color-white);
    max-width: 100%;
}

.about-intro h1 {
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-6);
}

@media (min-width: 900px) {
    .about-intro h1 {
        font-size: clamp(1.5rem, 2.5vw, 2.5rem);
    }
}

.about-intro p {
    font-size: var(--text-base);
    color: var(--color-black);
    line-height: var(--leading-relaxed);
    max-width: 800px;
}

.about-intro-dark p,
.about-intro-dark p + p {
    color: var(--color-white) !important;
}

.about-intro p + p {
    margin-top: var(--space-4);
}

/* Value Section */
.value-section {
    display: flex;
    flex-direction: column;
}

/* Mobile: image first, text second for both sections */
.value-section .value-image {
    order: 1;
}

.value-section .value-content {
    order: 2;
}

@media (min-width: 900px) {
    .value-section {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    /* Reset order for desktop */
    .value-section .value-image,
    .value-section .value-content {
        order: unset;
    }
    
    /* First section (OUR VALUE): text left (order 1), image right (order 2) */
    .value-section-first .value-content {
        order: 1;
    }
    
    .value-section-first .value-image {
        order: 2;
    }
}

.value-content {
    padding: var(--space-12) 10vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* First block: left margin 10vw */
@media (min-width: 900px) {
    .value-content-left {
        padding-left: 10vw;
        padding-right: var(--container-padding);
    }

    /* Second block: right margin 10vw */
    .value-content-right {
        padding-right: 10vw;
        padding-left: var(--container-padding);
    }
}

.value-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-none);
    text-transform: uppercase;
    margin-bottom: var(--space-10);
}

/* OUR VALUE section: left aligned on mobile, right aligned on PC */
.value-section-first .value-title {
    text-align: left;
}

@media (min-width: 900px) {
    .value-title {
        font-size: clamp(2.5rem, 4vw, 5rem);
    }
    
    .value-section-first .value-title {
        text-align: right;
    }
}

.value-block {
    margin-bottom: var(--space-8);
}

.value-block:last-child {
    margin-bottom: 0;
}

.value-block h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    margin-bottom: var(--space-3);
}

.value-block p {
    font-size: var(--text-base);
    color: var(--color-black);
    line-height: var(--leading-relaxed);
}

.value-image {
    height: 50vh;
    overflow: hidden;
}

@media (min-width: 900px) {
    .value-image {
        height: auto;
        min-height: 500px;
    }
}

.value-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ================= CONTACT PAGE ================= */
.contact-hero {
    padding: var(--space-16) 10% var(--space-10);
    background-color: var(--color-white);
}

.contact-title {
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
}

@media (min-width: 900px) {
    .contact-title {
        font-size: clamp(2rem, 3.5vw, 3.5rem);
    }
}

.contact-info {
    padding: 0 10% var(--space-12);
}

.contact-row {
    margin-bottom: var(--space-6);
}

.contact-label {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-1);
}

.contact-value {
    font-size: var(--text-lg);
    color: var(--color-black);
}

.contact-value a:hover {
    color: var(--color-primary);
}

.office-block {
    margin-bottom: var(--space-8);
}

.office-title {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.office-detail {
    font-size: var(--text-lg);
    color: var(--color-black);
    line-height: var(--leading-relaxed);
}

.office-detail strong {
    font-weight: var(--font-medium);
    color: var(--color-black);
}

/* ================= UTILITIES ================= */
.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.text-white { color: var(--color-white); }
.text-black { color: var(--color-black); }
.text-gray { color: var(--color-gray-500); }
.text-primary { color: var(--color-primary); }

.bg-white { background-color: var(--color-white); }
.bg-black { background-color: var(--color-black); }
.bg-dark { background-color: var(--color-dark); }
.bg-purple { background-color: var(--color-secondary); }

/* ================= ANIMATIONS ================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease forwards;
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease forwards;
}


/* ================= DARK MODE ================= */
@media (prefers-color-scheme: dark) {
    body {
        color: #ffffff;
        background-color: #0a0612;
    }
    
    /* Header - keep dark purple */
    .site-header {
        background-color: #1A0C2F;
    }
    
    /* Footer */
    .site-footer {
        background-color: #0a0612;
        border-top-color: #262626;
    }
    
    .footer-link {
        color: #ffffff;
    }
    
    .footer-link:hover {
        color: #E83A3A;
    }
    
    .footer-copyright {
        color: #a3a3a3;
    }
    
    /* Brand Statement */
    .brand-statement {
        background-color: #0a0612;
    }
    
    .brand-statement .subtitle,
    .brand-statement h1,
    .brand-statement .headline-word,
    .brand-statement .and-text {
        color: #ffffff;
    }
    
    /* Projects Header */
    .projects-header {
        background-color: #0a0612;
    }
    
    .projects-header .title {
        color: #ffffff;
    }
    
    /* Projects Page Header */
    .projects-page-header {
        background-color: #0a0612;
    }
    
    .projects-page-header .projects-title {
        color: #ffffff;
    }
    
    /* Stats Section */
    .stats-section {
        background-color: #0a0612;
    }
    
    .stat-number {
        color: #ffffff;
    }
    
    .stat-label {
        color: #a3a3a3;
    }
    
    /* Buttons */
    .btn-outline {
        color: #ffffff;
        border-color: #ffffff;
    }
    
    .btn-outline:hover {
        color: #ffffff;
        border-color: #ffffff;
        background-color: rgba(255, 255, 255, 0.1);
    }
    
    .btn-primary {
        background-color: #ffffff;
        color: #0a0612;
        border-color: #ffffff;
    }
    
    /* Tags */
    .tag {
        color: #ffffff;
        background-color: transparent;
        border-color: #ffffff;
    }
    
    /* Catalog Page */
    .catalog-hero {
        background-color: #0a0612;
    }
    
    .catalog-title {
        color: #ffffff;
    }
    
    .catalog-item-title {
        color: #ffffff;
    }
    
    .catalog-item-desc {
        color: #a3a3a3;
    }
    
    /* Detail Page */
    .detail-header {
        background-color: #0a0612;
    }
    
    .detail-title {
        color: #ffffff;
    }
    
    .content-section {
        background-color: #0a0612;
    }
    
    .content-label {
        color: #ffffff;
    }
    
    .content-text {
        color: #ffffff;
    }
    
    .content-text p {
        color: #ffffff;
    }
    
    .client-info {
        color: #ffffff;
    }
    
    .client-info span {
        color: #ffffff;
    }
    
    /* About Page */
    .about-intro {
        background-color: #0a0612;
    }
    
    .about-intro h1 {
        color: #ffffff;
    }
    
    .about-intro p {
        color: #ffffff;
    }
    
    .value-content {
        background-color: #0a0612;
    }
    
    .value-title {
        color: #ffffff;
    }
    
    .value-block h3 {
        color: #ffffff;
    }
    
    .value-block p {
        color: #ffffff;
    }
    
    /* Contact Page */
    .contact-hero {
        background-color: #0a0612;
    }
    
    .contact-title {
        color: #ffffff;
    }
    
    .contact-info {
        background-color: #0a0612;
    }
    
    .contact-label {
        color: #ffffff;
    }
    
    .contact-value {
        color: #ffffff;
    }
    
    .contact-value a {
        color: #ffffff;
    }
    
    .contact-value a:hover {
        color: #E83A3A;
    }
    
    .office-title {
        color: #ffffff;
    }
    
    .office-detail {
        color: #ffffff;
    }
    
    .office-detail strong {
        color: #ffffff;
    }
    
    /* Divider */
    .divider {
        background-color: #262626;
    }
    
    /* Filter tags active state */
    .filter-tags .btn.active {
        background-color: #ffffff;
        color: #0a0612;
    }
}