/* ==============================
   European Minimalist CSS
   ============================== */
:root {
    /* Palette: Light Blue-Purple */
    --bg-primary: #F4F4FB; /* Slightly warmer periwinkle-white */
    --bg-secondary: #E9E8F7;
    --text-primary: #1F1F33;
    --text-secondary: #6B6886;
    --border-color: rgba(90, 82, 221, 0.15); /* Translucent purple border */
    --accent: #5A52DD; 
    
    /* Layered Purple Palette */
    --purple-mist: rgba(90, 82, 221, 0.03);
    --purple-wash: rgba(90, 82, 221, 0.08);
    --purple-glow: rgba(90, 82, 221, 0.3);
    --purple-deep: #4138B5;
    
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-blur: blur(12px);
    
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Lato', sans-serif;
    
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s ease;
    --transition-reveal: 1.2s cubic-bezier(0.2, 0.8, 0.4, 1);
}

/* Intersection Observer Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

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


/* ==============================
   Reset & Base Styles
   ============================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: radial-gradient(circle at 50% 0%, #FFFFFF 0%, var(--bg-primary) 100%);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.7;
    font-size: 1.05rem;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Advanced Paper Grain Texture Overlay */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.06;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}


h1, h2, h3, h4, .logo {
    font-family: var(--font-heading);
    font-weight: 600;
}

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

ul {
    list-style: none;
}

    .container {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 4rem;
    }

    /* Page Header (Integrated, used when no separate hero block exists) */
    .page-header {
        padding: 160px 0 40px; /* Restored to original spacious design for Bio/Research */
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 4rem; /* Restored to original margin */
        background: transparent;
    }

    /* Specific compact header for Archive section on Homepage ONLY */
    .portfolio-header-wrapper.page-header {
        padding-top: 60px; /* Reduced from 100px to pull up even further */
        padding-bottom: 20px; /* Symmetrical reduction */
        margin-bottom: 2rem; /* Symmetrical reduction */
    }


    .page-header-inner {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .page-title {
        font-family: var(--font-heading);
        font-size: clamp(2.5rem, 5vw, 4rem);
        font-weight: 300;
        letter-spacing: -1px;
        line-height: 1.1;
        margin: 0;
    }

    .page-subtitle {
        font-size: 1.1rem;
        line-height: 1.6;
        color: var(--text-secondary);
        max-width: 800px;
        font-weight: 300;
    }

    .header-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

.section {
    padding: 120px 0;
}

.bg-secondary {
    background-color: var(--bg-secondary);
}

/* ==============================
   Typography & Utilities
   ============================== */
.section-title {
    font-size: 3.5rem;
    margin-bottom: 3rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.lead-text {
    font-size: 1.5rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    color: var(--text-primary);
    font-family: var(--font-heading); /* Mixing fonts for emphasis */
}

/* Glassmorphism Navigation */
.glass {
    background: transparent; /* Changed to transparent based on user request */
    border-bottom: none;
}

/* ==============================
   Navbar
   ============================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 3000;
    padding: 1.5rem 0;
    transition: background-color 0.4s ease, border-bottom 0.4s ease, padding 0.4s ease;
}

/* ==============================
   Navbar & Navigation System
   ============================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 3000;
    padding: 1.5rem 0;
    transition: background-color 0.4s ease, border-bottom 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 4rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 1. Home Navbar - Top Position (Over Hero) */
.navbar .logo,
.navbar .nav-links a,
.navbar .lang-switch,
.navbar .lang-switch a {
    color: #FFFFFF;
    text-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.navbar .logo-subtitle {
    display: block;
    font-size: 0.65rem; /* Standardized to 0.65rem for optimal clarity */
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 0.2rem;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    clip-path: inset(0 0 100% 0);
    color: rgba(255, 255, 255, 0.7);
}

.navbar .nav-links a::after {
    background-color: #FFFFFF;
}

.navbar .hamburger span {
    background-color: #FFFFFF;
}

/* 2. Home Navbar - Scrolled State (Over Light Background) */
.navbar.scrolled {
    background: var(--bg-secondary); /* Changed from white to periwinkle tint to match internal pages */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(90, 82, 221, 0.08); /* Softened purple shadow */
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links a,
.navbar.scrolled .lang-switch,
.navbar.scrolled .lang-switch a {
    color: var(--text-primary);
    text-shadow: none;
}

/* Subtitle is PURPLE when scrolled or on subpages */
.navbar.scrolled .logo-subtitle {
    color: var(--accent); 
}

.navbar.scrolled .nav-links a {
    color: var(--text-secondary);
}

.navbar.scrolled .nav-links a:hover {
    color: var(--text-primary);
}

.navbar.scrolled .nav-links a::after {
    background-color: var(--text-primary);
}

.navbar.scrolled .hamburger span {
    background-color: var(--text-primary);
}

/* 3. Subpage Navbar Mode (Bio, Research) - Always Light */
body[data-no-hero] .navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    box-shadow: 0 4px 15px rgba(90, 82, 221, 0.05);
}

body[data-no-hero] .navbar .logo {
    color: var(--text-primary);
}

body[data-no-hero] .navbar .logo-subtitle {
    color: var(--accent) !important; /* Signature Purple for subpages */
}

body[data-no-hero] .navbar .nav-links a,
body[data-no-hero] .navbar .lang-switch,
body[data-no-hero] .navbar .lang-switch a {
    color: var(--text-secondary);
}

body[data-no-hero] .navbar .nav-links a:hover {
    color: var(--text-primary);
}

body[data-no-hero] .navbar .nav-links a::after {
    background-color: var(--accent);
}

body[data-no-hero] .navbar .hamburger span {
    background-color: var(--text-primary);
}

/* 4. Dropdown Styles (context-aware) */

/* Default: Dark Theme (Used on Home Page Arrival over Hero) */
.nav-has-dropdown {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    transform: translateY(10px);
    background: rgba(20, 20, 30, 0.4); /* 40% Transparent Dark */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1.2rem 1.5rem;
    min-width: max-content;
    display: flex;
    flex-direction: row;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 4px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
    z-index: 4000;
}

.nav-has-dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Sub-page and Scrolled State: Light Theme Dropdown (Translucent White) */
.navbar.scrolled .nav-dropdown,
body[data-no-hero] .navbar .nav-dropdown {
    background: rgba(255, 255, 255, 0.85); /* 提高不透明度以增進閱讀性 */
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(90, 82, 221, 0.1);
}


/* Typography and Interaction - DARK THEME (HOME TOP) */
.dropdown-category {
    color: #D8D5FF; /* Lavender */
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px; /* Consistent narrower spacing as requested */
    margin-bottom: 0.5rem;
    display: block;
}

.dropdown-item {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    padding: 0.3rem 0;
    display: block;
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
}

.dropdown-item:hover {
    color: #FFFFFF;
    transform: translateX(4px);
}

/* Typography and Interaction - LIGHT THEME (SUBPAGES / SCROLLED) */
.navbar.scrolled .dropdown-category,
body[data-no-hero] .navbar .dropdown-category {
    color: var(--accent); /* Purple Interaction */
}

.navbar.scrolled .dropdown-item,
body[data-no-hero] .navbar .dropdown-item {
    color: var(--text-secondary);
}

.navbar.scrolled .dropdown-item:hover,
body[data-no-hero] .navbar .dropdown-item:hover {
    color: #FF9F1C; /* Bright Orange-Yellow Selection */
}

/* 5. Dropdown Accordion Logic (Reveal items on category hover) */
.dropdown-item-list {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.3s;
    display: flex;
    flex-direction: column;
    padding-left: 0.2rem;
}

.dropdown-section:hover .dropdown-item-list {
    max-height: 600px; /* Large enough to fit all projects */
    opacity: 1;
    visibility: visible;
    margin-top: 0.5rem;
}

/* ==============================
   Language Switcher
   ============================== */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-left: 2rem;
}

.lang-switch a,
.lang-switch span {
    text-decoration: none;
    padding: 0.2rem 0.4rem;
    transition: color 0.2s;
}

.lang-switch .lang-active {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.lang-switch .lang-other {
    color: rgba(255, 255, 255, 0.4);
}

.lang-switch .lang-other:hover {
    color: rgba(255, 255, 255, 0.85);
}

.lang-switch .lang-disabled {
    color: rgba(255, 255, 255, 0.2);
    cursor: default;
    pointer-events: none;
}

.lang-switch .lang-sep {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.6rem;
}

/* Scrolled state: dark background */
.navbar.scrolled .lang-switch .lang-active {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

.navbar.scrolled .lang-switch .lang-other {
    color: var(--text-secondary);
}

.navbar.scrolled .lang-switch .lang-other:hover {
    color: var(--text-primary);
}

.navbar.scrolled .lang-switch .lang-disabled {
    color: var(--border-color);
}

.navbar.scrolled .lang-switch .lang-sep {
    color: var(--border-color);
}

/* ==============================
   Bilingual Content Toggle
   ============================== */
.lang-zh { display: none; }
body.zh .lang-zh { display: block; } /* Changed to block for layout support */
body.zh .lang-en { display: none; }

/* Special inline case for small spans */
body.zh span.lang-zh { display: inline; }

.lang-divider {
    border-top: 1px solid var(--border-color);
    margin: 3rem 0;
    position: relative;
    opacity: 0.5;
}

.lang-label {
    position: absolute;
    top: -0.8rem;
    left: 0;
    background: var(--bg-primary);
    padding-right: 1rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

/* ==============================
   Animations & Transitions
   ============================== */
.fade-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.nav-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Dynamic Logo */
.logo-container {
    display: flex;
    flex-direction: column;
    position: relative;
    text-decoration: none;
    padding: 0.5rem 0;
}

.logo {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    /* 低調的光邊緣 Glow Effect */
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2), 0 0 20px rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

.logo-container:hover .logo {
    color: #FFFFFF;
    transition: color 0.3s ease;
}

/* Fix: Logo should NOT turn white on light backgrounds */
.navbar.scrolled .logo-container:hover .logo,
body[data-no-hero] .navbar .logo-container:hover .logo {
    color: var(--text-primary);
}

.logo-subtitle {
    font-size: 0.65rem; /* Adjusted for better legibility while maintaining elegance */
    font-family: var(--font-body); /* Align font with nav-links */
    color: #E6E4FF; /* Enhanced Bright Lavender for visibility on dark hero */
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 400;
    white-space: nowrap;
    position: absolute;
    bottom: -8px; 
    left: 0;
    opacity: 0;
    /* 從左到右跳出版 (Wipe effect) */
    clip-path: inset(0 100% 0 0);
    transform: translateY(10px);
    transition: clip-path 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s ease, opacity 0.3s ease;
}

.logo-container:hover .logo-subtitle {
    color: #C7C2FF; /* Even brighter, high-vibrancy purple for visibility on Dark Hero */
    opacity: 1;
    transform: translateY(0);
    clip-path: inset(0 0 0 0);
}

/* Contextual Subtitle Hover - Scrolled or Subpages */
.navbar.scrolled .logo-container:hover .logo-subtitle,
body[data-no-hero] .navbar .logo-container:hover .logo-subtitle {
    color: var(--accent) !important; /* Muted/Deep Purple for light backgrounds */
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    font-size: 0.8rem; /* 縮小字體 */
    letter-spacing: 2px;
    text-transform: uppercase;
    background: transparent; /* 移除色塊 */
    color: rgba(255, 255, 255, 0.85);
    padding: 0.4rem 0;
    font-weight: 400; /* 更精緻輕盈 */
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px; /* 非色塊的精緻底線動畫 */
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #fff;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-links a:hover {
    color: #fff;
}

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}



/* ==============================

   Hero Section
   ============================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    color: #fff;
}

/* ==============================
   Hero Slider & Hover Logic
   ============================== */
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    background-color: #000;
}

.hero-slider-track {
    display: flex;
    width: 600%; /* Total slides = 6 (5 + 1 clone) */
    height: 100%;
    transition: transform 2.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.hero-slide {
    width: 16.6666%; /* 1/6th */
    height: 100%;
    background-size: cover;
    background-position: center;
}

.hero-dots {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 10;
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.4s ease;
    border: 1px solid transparent;
}

.dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

.dot.active {
    background: #fff;
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.hero-info-box {
    position: absolute;
    bottom: 5rem; /* Moved to bottom */
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-body);
    font-size: 0.75rem; /* Smaller font */
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
    text-align: center;
    width: 100%;
}

.hero:hover .hero-info-box {
    opacity: 1;
    transform: translate(-50%, -10px);
}

.hero-info-box.clickable {
    cursor: pointer;
    pointer-events: auto; /* Enable click */
}

.caption-link {
    border-bottom: 1px solid transparent;
    transition: border-bottom 0.3s ease;
    padding-bottom: 2px;
}

.hero-info-box:hover .caption-link {
    border-bottom-color: rgba(255, 255, 255, 0.5);
}

.scroll-line {
    position: absolute;
    bottom: 0;
    left: 4rem;
    width: 1px;
    height: 100px;
    background: var(--border-color);
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 50px;
    background: var(--text-primary);
    animation: scrollDown 2s infinite ease-in-out;
}

@keyframes scrollDown {
    0% { top: -50px; }
    100% { top: 100px; }
}

.bio-link {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--text-primary);
    color: var(--text-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0.2rem 0;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 2rem;
    display: inline-block;
}

.bio-link:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
    padding-left: 5px;
}

/* Bio Section Layout */
.bio-layout {
    display: grid;
    grid-template-columns: 3fr 7fr;
    gap: 4rem;
}

.bio-rich-content {
    max-width: 800px;
}

.bio-rich-content p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.bio-rich-content p.lead-text {
    color: var(--text-primary);
}

/* Portrait - full width */
.bio-portrait-wrap {
    margin: 2.5rem 0;
    width: 100%;
}

.bio-portrait-wrap img {
    width: 100%;
    height: auto;
    display: block;
}

/* Two side images - ~half width each */
.bio-side-imgs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 2.5rem 0;
    width: 100%;
}

.bio-side-imgs img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.bio-cv-section {
    margin: 4rem 0;
}

.bio-cv-section h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.bio-cv-section ul li {
    padding: 1rem 0;
    border-bottom: 1px dashed rgba(0,0,0,0.05);
}

/* ==============================
   Refined Horizontal Gallery
   ============================== */
.portfolio-grid {
    display: flex;
    flex-direction: row; /* Horizontal layout */
    gap: 3rem;
    overflow-x: auto;
    padding-bottom: 3rem;
    /* Hide scrollbar but allow scrolling */
    scrollbar-width: none;
    -ms-overflow-style: none;
    cursor: grab;
}

.portfolio-grid::-webkit-scrollbar {
    display: none;
}

.portfolio-grid:active {
    cursor: grabbing;
}

/* ==============================
   Portfolio Grid Styles (Placeholder State)
   ============================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem 2.5rem;
}

.portfolio-card {
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-slow);
}

.portfolio-card:hover {
    transform: translateY(-8px);
}

.card-img-wrapper {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    margin-bottom: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    position: relative;
}

.card-img-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 48%, var(--border-color) 49%, var(--border-color) 51%, transparent 52%);
    opacity: 0.1; /* Very subtle X-frame placeholder look */
}

.bg-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 1s var(--transition-slow);
}

.portfolio-card:hover .bg-img {
    transform: scale(1.05);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* ==============================
   Portfolio Filters & Grid
   ============================== */
.portfolio-header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.portfolio-header-wrapper .section-title {
    margin-bottom: 0;
}

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

.filter-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
    position: relative;
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--text-primary);
    transition: var(--transition-fast);
    transform: translateX(-50%);
}

.filter-btn:hover::after, .filter-btn.active::after {
    width: calc(100% - 2rem);
}

.filter-btn.active {
    color: var(--text-primary);
}

.filter-btn .year-hover {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    opacity: 0;
    pointer-events: none;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
    text-transform: none;
    letter-spacing: 1px;
}

.filter-btn:hover .year-hover,
.filter-btn.active .year-hover {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ==============================
   Refined Archive Layout (Timeline Index)
   ============================== */
.archive-year-group {
    margin-bottom: 6rem;
}

.year-title {
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
    color: var(--text-primary);
    opacity: 0.8;
}

/* Redundant definitions removed */

/* ==============================
   Clean List (Research / Workshop)
   ============================== */
.dual-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.clean-list li {
    padding: 0.5rem 0;
    display: flex;
    gap: 2rem;
    align-items: baseline;
}

.clean-list .year {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.clean-list .desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ==============================
   Footer
   ============================== */
.footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.social-links {
    display: flex;
    gap: 2rem;
}

.social-links a {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==============================
   Full-Page Project Takeover
   ============================== */
.project-takeover {
    position: fixed;
    inset: 0;
    z-index: 2000;
    padding-top: 70px; /* clear navbar */
    background: var(--bg-primary);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
    overflow: hidden; /* Handle scrolling internally */
}

.project-takeover.active {
    transform: translateY(0);
}

/* Bottom navigation bar inside modal */
.takeover-bottom-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(240, 240, 250, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    z-index: 10;
}

.nav-project-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s;
    max-width: 38%;
    overflow: hidden;
}

.nav-project-btn:hover {
    color: var(--text-primary);
}

.nav-project-btn:disabled {
    opacity: 0.25;
    cursor: default;
}

.nav-project-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-project-btn--right {
    justify-content: flex-end;
}

.nav-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.2s, color 0.2s;
    flex-shrink: 0;
}

.nav-close-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}


.takeover-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    z-index: 10;
}

    .back-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.8rem;
        font-family: var(--font-body);
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: var(--text-secondary);
        transition: var(--transition-fast);
        background: var(--purple-mist);
        backdrop-filter: var(--glass-blur);
        padding: 8px 16px;
        border-radius: 100px;
        border: 1px solid var(--border-color);
        margin-left: -5px;
    }

    .back-btn:hover {
        color: var(--accent);
        background: var(--purple-wash);
        transform: translateX(-5px);
    }


.takeover-scroll-area {
    width: 100%;
    height: calc(100vh - 70px - 60px); /* minus navbar top + bottom nav */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Inside Takeover Details */
.takeover-hero {
    width: 100%;
    height: 70vh;
    background: var(--border-color);
    margin-bottom: 6rem;
    background-size: cover;
    background-position: center;
}

.takeover-article {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 4rem 120px;
}

.article-header {
    margin-bottom: 3rem;
}

.article-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    font-weight: 300;
    margin-bottom: 1.5rem;
}

.article-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--text-secondary);
}

.takeover-hero-img-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.takeover-hero-img-container::before {
    content: '';
    display: block;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.article-content p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.article-content p.lead-text {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.4rem;
    line-height: 1.5;
    margin-bottom: 3rem;
}

/* Project Gallery styles for multiple images */
.project-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin: 4rem 0;
}

.project-gallery img {
    width: 100%;
    height: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.4s ease;
}

.project-gallery img:hover {
    transform: scale(1.02);
}

@media (min-width: 900px) {
    .project-gallery {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    .project-gallery img:only-child,
    .project-gallery img.full-width {
        grid-column: span 2;
    }
}



/* Project video links */
.project-links {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.project-links a {
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.2s, border-color 0.2s;
    word-break: break-all;
}

.project-links a:hover {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

.article-full-img {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--border-color);
    margin: 4rem 0;
}

/* ==============================
   Responsive — Tablet (≤1024px)
   ============================== */
@media (max-width: 1024px) {
    .bio-layout, .dual-columns {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .portfolio-header-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ==============================
   Responsive — Mobile (≤768px)
   ============================== */
@media (max-width: 768px) {
    /* Base spacing */
    .container {
        padding: 0 1.5rem;
    }

    .section {
        padding: 80px 0;
    }

    /* Section titles */
    .section-title {
        font-size: 2.4rem;
    }

    /* Hamburger */
    .bio-sidebar-nav {
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
        position: sticky;
        top: 140px;
        padding: 2rem;
        background: var(--glass-bg);
        backdrop-filter: var(--glass-blur);
        border: 1px solid var(--border-color);
        border-radius: 16px;
        box-shadow: 0 10px 30px var(--purple-mist);
    }

    .sidebar-link {
        font-size: 0.95rem;
        color: var(--text-secondary);
        padding: 0.4rem 0;
        position: relative;
        transition: var(--transition-fast);
        display: inline-block;
    }

    .sidebar-link::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 1px;
        background: var(--accent);
        transition: var(--transition-fast);
    }

    .sidebar-link:hover {
        color: var(--accent);
        transform: translateX(5px);
    }
    
    .sidebar-link:hover::after {
        width: 20px;
    }

    .hamburger {
        display: flex;
        flex-direction: column;
        justify-content: center;
        width: 30px;
        height: 20px;
        cursor: pointer;
        z-index: 1100;
        position: relative;
    }

    .hamburger span {
        display: block;
        width: 100%;
        height: 1px;
        background-color: white;
        margin: 3px 0;
        transition: 0.4s;
    }

    /* Hamburger → X */
    .navbar.nav-open .hamburger span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    .navbar.nav-open .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .navbar.nav-open .hamburger span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Hamburger bars: dark when scrolled */
    .navbar.scrolled .hamburger span {
        background-color: var(--text-primary);
    }

    /* Full-screen mobile nav — medium transparent */
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: rgba(20, 18, 38, 0.65); /* Medium opacity dark tint */
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateY(-100%);
        transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1050;
        pointer-events: none;
        padding: 5rem 2rem;
        box-sizing: border-box;
    }

    .navbar.nav-open .nav-links {
        transform: translateY(0);
        pointer-events: all;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links li a {
        font-family: var(--font-heading);
        font-size: 1.5rem;
        color: #ffffff !important; /* Light text for dark background */
        letter-spacing: 1px;
        text-transform: none;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        text-shadow: none !important;
    }

    .navbar.nav-open .nav-links li a {
        opacity: 1;
        transform: translateY(0);
    }

    /* Staggered entrance for menu items */
    .navbar.nav-open .nav-links li:nth-child(1) a { transition-delay: 0.1s; }
    .navbar.nav-open .nav-links li:nth-child(2) a { transition-delay: 0.2s; }
    .navbar.nav-open .nav-links li:nth-child(3) a { transition-delay: 0.3s; }

    /* Mobile: hide all dropdown content — Archive just scrolls to #portfolio */
    .nav-has-dropdown .nav-dropdown {
        display: none !important;
    }

    /* Remove +/- accordion trigger on Archive */
    .nav-has-dropdown .nav-dropdown-trigger::after {
        display: none !important;
    }

    .dropdown-section {
        width: 100%;
    }

    .dropdown-category {
        font-size: 0.8rem;
        color: var(--accent);
        margin-bottom: 0.8rem;
    }

    .dropdown-item-list {
        max-height: none;
        opacity: 1;
        visibility: visible;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .dropdown-item {
        font-size: 0.88rem;
        color: #4a4a6a !important;
        padding: 0.4rem 0;
        text-shadow: none !important;
    }

    /* Hero Refinements */
    .hero {
        padding-top: 60px;
        height: 85vh; /* Shorter for better proportion on mobile */
    }

    .hero-dots {
        bottom: 1.5rem;
        gap: 0.7rem;
    }

    .hero-info-box {
        font-size: 0.6rem;
        bottom: 2.8rem;
        letter-spacing: 1px;
        padding: 0 1rem;
        line-height: 1.4;
        z-index: 5;
    }

    /* Fixed Header Elements */
    .nav-wrapper {
        padding: 0 1.5rem;
    }

    .logo {
        font-size: 1.1rem;
        letter-spacing: 2px;
    }

    /* Bio Section Refinement */
    .bio-layout {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .bio-portrait-wrap {
        width: 100%;
        margin: 1.5rem 0;
    }

    .bio-side-imgs {
        grid-template-columns: 1fr;
        max-width: 100%;
        gap: 1rem;
    }

    .bio-side-imgs img {
        aspect-ratio: 16/9;
    }

    .lead-text {
        font-size: 1.25rem;
        line-height: 1.5;
    }

    /* Portfolio Interaction */
    .portfolio-grid {
        gap: 1.5rem;
        padding: 0 0.5rem 2rem;
        margin: 0 -1.5rem; /* Full-bleed feel */
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .portfolio-card {
        flex: 0 0 75vw; /* Much wider for better impact */
    }

    .card-title {
        font-size: 1.2rem;
    }

    .filters {
        display: flex;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 0.5rem;
        scrollbar-width: none;
        margin: 0 -1.5rem;
        padding-left: 1.5rem;
        -webkit-overflow-scrolling: touch;
        z-index: 100; /* Ensure it stays above content but below modals */
        row-gap: 0.8rem;
    }

    .filters::-webkit-scrollbar { display: none; }

    .filter-btn {
        flex: 0 0 auto;
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
        position: relative;
        text-align: right; /* Right align button text on mobile */
    }

    /* Style year-hover statically inside the button on mobile to prevent overlapping other rows */
    .filter-btn .year-hover {
        position: static;
        display: block;
        opacity: 0;
        height: 0;
        overflow: hidden;
        font-size: 0.7rem;
        color: var(--text-secondary);
        transform: none;
        transition: opacity var(--transition-fast);
        margin-top: 0;
        white-space: normal;
        pointer-events: none;
        text-align: right; /* Right align year text on mobile */
    }

    .filter-btn.active .year-hover,
    .filter-btn:hover .year-hover {
        opacity: 0.7;
        height: auto;
        margin-top: 0.25rem;
    }

    /* Portfolio header */
    .portfolio-header-wrapper {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        margin-bottom: 2.5rem;
    }

    /* Research / Workshop */
    .dual-columns {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .clean-list li {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1.2rem 0;
    }

    /* Footer */
    .footer-layout {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    /* Project takeover */
    #bioModal.project-takeover {
        z-index: 5000; /* Keep bio modal above navbar to use its own top close button */
    }
    #projectModal.project-takeover {
        z-index: 2000; /* Keep project modal below navbar so navbar remains visible */
    }

    .takeover-hero {
        height: 40vh;
        margin-bottom: 3rem;
    }

    .cv-section, .rs-section {
        margin-bottom: 6rem;
        padding: 2.5rem;
        background: var(--purple-mist);
        border-radius: 20px;
        border: 1px solid transparent;
        transition: var(--transition-slow);
    }
    
    .cv-section:hover, .rs-section:hover {
        background: var(--purple-wash);
        border-color: var(--border-color);
    }


    .takeover-article {
        padding: 0 1.5rem 100px;
    }

    .article-title {
        font-size: 2.5rem;
    }

    .takeover-header {
        padding: 1rem 1.5rem;
    }

    /* Display control for lang switch */
    .mobile-only-lang {
        display: block;
        margin-top: 1rem;
    }

    .mobile-only-lang a, .mobile-only-lang .lang-sep {
        color: #ffffff !important;
        text-shadow: none !important;
    }

    .header-lang {
        display: none !important;
    }

    .lang-switch {
        justify-content: center;
        margin: 0;
    }
}



@media (min-width: 769px) {
    .mobile-only-lang {
        display: none !important;
    }
}


/* Bio Full Page Portrait */
.bio-portrait {
    width: 40%;
    min-width: 250px;
    float: right;
    margin: 0.5rem 0 2rem 2.5rem;
    border-radius: 2px;
}

@media (max-width: 768px) {
    .bio-portrait {
        float: none;
        width: 100%;
        margin: 0 0 2rem 0;
    }
}

/* ==============================
   Archive Cards — Enriched Layout
   ============================== */
.card-tags-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.6rem;
}
.card-tag {
    font-size: 0.6rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(90,82,221,0.4);
    padding: 0.15rem 0.5rem;
    border-radius: 2px;
    white-space: nowrap;
}
.card-year {
    font-size: 0.65rem;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-left: auto;
}
.card-positioning {
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-top: 0.4rem;
    font-weight: 300;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==============================
   Takeover — Format Tags
   ============================== */
.takeover-format-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}
.format-tag {
    font-size: 0.62rem;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(90,82,221,0.4);
    padding: 0.2rem 0.7rem;
    border-radius: 2px;
}
.year-badge {
    font-size: 0.62rem;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-left: auto;
}

/* ==============================
   Takeover — Enriched Wrapper
   ============================== */
.takeover-enriched {
    padding-top: 80px;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
    padding-bottom: 8rem;
}
.takeover-quick-id {
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 3.5rem;
}
.takeover-positioning {
    font-size: 1.1rem;
    line-height: 1.65;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-style: italic;
    margin-bottom: 2.5rem;
    max-width: 720px;
}
.takeover-hero-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2px;
}
#legacyHeroImg {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    margin-bottom: 4rem;
}

/* ==============================
   Section Label
   ============================== */
.section-label {
    font-family: var(--font-body);
    font-size: 0.6rem;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* ==============================
   Takeover — Body Grid (Layer 2)
   ============================== */
.takeover-body-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 4rem;
    margin-bottom: 3.5rem;
    padding-bottom: 3.5rem;
    border-bottom: 1px solid var(--border-color);
    align-items: start;
}
.takeover-main { display: flex; flex-direction: column; gap: 2.5rem; }
.takeover-section p { font-size: 0.95rem; line-height: 1.8; color: var(--text-primary); font-weight: 300; }
.takeover-sidebar { position: sticky; top: 80px; }
.tech-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0; }
.tech-list li { font-size: 0.8rem; line-height: 1.5; color: var(--text-secondary); padding: 0.5rem 0; border-bottom: 1px solid var(--border-color); font-weight: 400; }
.tech-list li:last-child { border-bottom: none; }

/* ==============================
   Takeover — Details Grid (Layer 3)
   ============================== */
.takeover-details { margin-bottom: 3.5rem; padding-bottom: 3.5rem; border-bottom: 1px solid var(--border-color); }
.details-grid { display: flex; flex-direction: column; }
.detail-row { display: grid; grid-template-columns: 200px 1fr; gap: 2rem; padding: 0.75rem 0; border-bottom: 1px solid var(--border-color); }
.detail-row:last-child { border-bottom: none; }
.detail-key { font-size: 0.65rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-secondary); font-weight: 600; padding-top: 0.1rem; }
.detail-val { font-size: 0.88rem; color: var(--text-primary); line-height: 1.6; font-weight: 300; }

/* ==============================
   Takeover — Production Team
   ============================== */
.takeover-team { margin-bottom: 3.5rem; padding-bottom: 3.5rem; border-bottom: 1px solid var(--border-color); }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-top: 1rem; }
.team-row { display: flex; flex-direction: column; padding: 1rem; background: var(--purple-mist); border-radius: 3px; border-left: 2px solid transparent; transition: transform 0.2s ease, border-color 0.2s ease; }
.team-row:hover { transform: translateX(3px); border-left-color: var(--accent); }
.team-row--lead { background: rgba(90, 82, 221, 0.04); border-left-color: var(--accent); }
.team-role { font-size: 0.65rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 0.3rem; font-weight: 500; }
.team-name { font-size: 0.95rem; color: var(--text-primary); font-weight: 400; }

/* ==============================
   Takeover — Media (Layer 4)
   ============================== */
.takeover-media { margin-bottom: 3rem; padding-bottom: 3rem; border-bottom: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 2rem; }
.video-links { display: flex; flex-direction: column; gap: 0.5rem; }
.video-link-item { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 1.2rem; border: 1px solid var(--border-color); border-radius: 2px; text-decoration: none; color: var(--text-primary); font-size: 0.85rem; transition: all 0.2s ease; background: var(--purple-mist); }
.video-link-item:hover { background: var(--purple-wash); border-color: var(--accent); color: var(--accent); }
.keywords-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.keyword-pill { font-size: 0.7rem; letter-spacing: 1px; color: var(--text-secondary); border: 1px solid var(--border-color); padding: 0.3rem 0.8rem; border-radius: 20px; transition: all 0.2s; }
.keyword-pill:hover { border-color: var(--accent); color: var(--accent); }

/* ==============================
   Takeover — Related Projects (Layer 5)
   ============================== */
.takeover-related { padding-bottom: 2rem; }
.related-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.related-project-btn { display: flex; align-items: center; gap: 0.75rem; padding: 0.8rem 1.2rem; border: 1px solid var(--border-color); border-radius: 2px; background: transparent; cursor: pointer; color: var(--text-primary); transition: all 0.25s ease; text-align: left; font-family: var(--font-body); }
.related-project-btn:hover { border-color: var(--accent); background: var(--purple-wash); color: var(--accent); }
.related-title { font-size: 0.85rem; font-weight: 400; }
.related-year { font-size: 0.7rem; color: var(--text-secondary); letter-spacing: 1px; }

/* ==============================
   Responsive — Enriched Takeover
   ============================== */
@media (max-width: 900px) {
    .takeover-body-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .takeover-sidebar { position: static; }
    .detail-row { grid-template-columns: 130px 1fr; gap: 1rem; }
}
@media (max-width: 600px) {
    .takeover-enriched { padding-left: 1.2rem; padding-right: 1.2rem; }
    .detail-row { grid-template-columns: 1fr; gap: 0.2rem; }
    .detail-key { color: var(--accent); }
    .related-project-btn { width: 100%; }
}