:root {
    --bg-color: #ffffff;
    --bg-secondary: rgb(212, 212, 212);
    --text-primary: #121212;
    --text-secondary: #494949;
    --accent-cyan: #0056b3;
    --accent-yellow: #000000;
    --accent-dark: #e7e7e781;
    --border-color: #d8d8d8;
    --transition-speed: 0.3s;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', 'Monaco', monospace;
    --bg-gradient-start: #f5f5f5;
    --bg-gradient-mid: #a8a8a8;
    --bg-gradient-end: #848484;
    --bg-gradient-2-start: #f5f5f5;
    --bg-gradient-2-mid: #ffffff;
    --bg-gradient-2-end: #d8d8d8;
    --card-bg: rgb(255, 255, 255);
    --nav-bg: rgba(255, 255, 255, 0.705);
    /* Common values */
    --clip-small: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
    --clip-medium: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px);
    --clip-large: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
    --shadow-base: 6px 6px 0 rgba(0, 0, 0, 0.25);
    --shadow-hover: 10px 10px 0 rgba(0, 0, 0, 0.35), 0 15px 40px rgba(0, 86, 179, 0.25);
    --transition-base: all 0.3s ease;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-theme="dark"] {
    --bg-color: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #bebebe;
    --accent-cyan: #5ab4ff;
    --accent-yellow: #ffffff;
    --accent-dark: #000000;
    --border-color: #3a3a3a;
    --bg-gradient-start: #080808;
    --bg-gradient-mid: #0d0d0d;
    --bg-gradient-end: #141414;
    --bg-gradient-2-start: #0a0a0a;
    --bg-gradient-2-mid: #0f0f0f;
    --bg-gradient-2-end: #151515;
    --card-bg: rgb(5, 5, 5);
    --nav-bg: rgba(18, 18, 18, 0.95);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* --- Utility Classes --- */
.clip-small { clip-path: var(--clip-small); }
.clip-medium { clip-path: var(--clip-medium); }
.clip-large { clip-path: var(--clip-large); }
.shadow-base { box-shadow: var(--shadow-base); }
.transition-base { transition: var(--transition-base); }
.transition-smooth { transition: var(--transition-smooth); }

/* Corner decorations - shared styles */
.corner-accent::before {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--accent-cyan);
    border-right: 2px solid var(--accent-cyan);
    top: 8px;
    right: 8px;
    z-index: 2;
}

.corner-tl::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    border-top: 3px solid var(--accent-cyan);
    border-left: 3px solid var(--accent-cyan);
    z-index: 2;
}

/* Vertical accent line - shared */
.accent-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-cyan);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.4s ease;
    z-index: 2;
}

.accent-line:hover::before {
    transform: scaleY(1);
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-left: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border: 2px solid var(--bg-color);
    border-radius: 0px;
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

::-webkit-scrollbar-corner {
    background: var(--bg-color);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--text-secondary) var(--bg-color);
}

/* Shared scrollbar styles for horizontal scrollers */
.custom-scroll {
    scrollbar-width: thin;
    scrollbar-color: var(--text-secondary) transparent;
}

.custom-scroll::-webkit-scrollbar {
    height: 8px;
}

.custom-scroll::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 0;
}

.custom-scroll::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 0;
    transition: background 0.3s ease;
}

.custom-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--text-primary);
}

/* --- Background & Decorations --- */
body {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
    /* transition: background 0.3s ease, color 0.3s ease; */
    /* Removed global diagonal lines, kept dots */
    background-image: 
        linear-gradient(170deg, var(--bg-gradient-2-start) 0%, var(--bg-gradient-2-mid) 70%, var(--bg-gradient-2-end) 100%),
        radial-gradient(var(--text-secondary) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px;
    background-attachment: fixed;
}

/* Top Right Diagonal Decoration */
body::before {
    content: '';
    position: fixed;
    top: 0;
    right: 0;
    width: 30vw;
    height: 30vh;
    background-image: linear-gradient(45deg, rgba(0,0,0,0.03) 25%, transparent 25%, transparent 50%, rgba(0,0,0,0.03) 50%, rgba(0,0,0,0.03) 75%, transparent 75%, transparent);
    background-size: 10px 10px;
    z-index: -1;
    pointer-events: none;
    mask-image: linear-gradient(to bottom left, black, transparent);
    -webkit-mask-image: linear-gradient(to bottom left, black, transparent);
    transition: background-image 0.3s ease;
}

[data-theme="dark"] body::before {
    background-image: linear-gradient(45deg, rgba(255,255,255,0.03) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.03) 50%, rgba(255,255,255,0.03) 75%, transparent 75%, transparent);
}

/* Language display defaults: show English, hide Chinese. */
.en { display: inline; }
.cn { display: none; }
/* When document has lang-zh class, show Chinese and hide English */
.lang-zh .en { display: none !important; }
.lang-zh .cn { display: inline !important; }

/* Exception: Navigation links always show both languages */
nav .nav-item .en,
nav .nav-item .cn {
    display: inline !important;
}

nav .nav-item .en::after {
    content: ' ';
    white-space: pre;
}

/* Language Switcher Styles - Merged Button */
.lang-switcher-btn {
    width: 40px;
    height: 40px;
    border: 2px solid var(--text-primary);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 16px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    transition: all 0.3s ease;
    clip-path: polygon(
        5px 0, 
        100% 0, 
        100% calc(100% - 5px), 
        calc(100% - 5px) 100%, 
        0 100%, 
        0 5px
    );
    position: relative;
    overflow: hidden;
}

.lang-switcher-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--text-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.lang-switcher-btn:hover {
    background: var(--text-primary);
    transform: scale(1.1);
}

.lang-switcher-btn:hover::before {
    opacity: 1;
}

.lang-switcher-btn:active {
    transform: scale(1.05);
}

.lang-option {
    color: var(--text-primary);
    transition: all 0.3s ease;
    z-index: 1;
    position: relative;
}

.lang-switcher-btn:hover .lang-option {
    color: var(--bg-color);
}

.lang-divider {
    display: none;
}

/* Show only target language: EN in Chinese mode, 中 in English mode */
.lang-en .lang-option.lang-en {
    display: none;
}

.lang-zh .lang-option.lang-zh {
    display: none;
}

[data-theme="dark"] .lang-option {
    color: var(--text-primary);
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.3;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

[data-theme="dark"] #bg-canvas {
    opacity: 0.5;
}

/* UI Layer (Fixed Decorations) */
.ui-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10; 
    overflow: hidden;
}

/* Hide requested elements */
.deco-line-top {
    display: none;
}

.deco-info-br span:nth-child(2) {
    display: none;
}

.deco-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0,0,0,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.08) 1px, transparent 1px);
    background-size: 100px 100px;
    z-index: -1;
    transition: background-image 0.3s ease;
}

[data-theme="dark"] .deco-grid-overlay {
    background-image: 
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
}

.deco-info-br {
    position: absolute;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    gap: 5px;
    z-index: 2;
}

.deco-info-br span::before {
    content: '>';
    margin-right: 5px;
    color: var(--accent-cyan);
}

.deco-bar-left {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60vh;
    background: rgba(0,0,0,0.1);
    transition: background 0.3s ease;
}

[data-theme="dark"] .deco-bar-left {
    background: rgba(255,255,255,0.15);
}

.deco-bar-left::after {
    content: 'SYS.01';
    position: absolute;
    bottom: -20px;
    left: -10px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-secondary);
    transform: rotate(-90deg);
}

.deco-corner-tr {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 100px;
    height: 100px;
    border-top: none; /* Removed top border */
    border-right: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.deco-corner-tr::after {
    content: '+';
    position: absolute;
    top: -8px;
    right: -8px;
    font-family: var(--font-mono);
}

.deco-corner-bl {
    position: absolute;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    border-bottom: 2px solid var(--border-color);
    border-left: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.deco-text-bg {
    position: absolute;
    bottom: 10%;
    right: -3%;
    font-size: 13rem;
    font-weight: 900;
    color: rgba(0,0,0,0.03);
    line-height: 1;
    white-space: nowrap;
    font-family: var(--font-main);
    z-index: -1;
    transition: color 0.3s ease;
}

[data-theme="dark"] .deco-text-bg {
    color: rgba(255,255,255,0.03);
}

/* New Decorations */
.deco-line-top {
    position: absolute;
    top: 120px;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(0,0,0,0.1);
    overflow: hidden;
}

[data-theme="dark"] .deco-line-top {
    background: rgba(255,255,255,0.15);
}

.deco-line-top::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100px;
    height: 100%;
    background: var(--accent-cyan);
    animation: scan-horizontal 4s linear infinite;
}

@keyframes scan-horizontal {
    0% { left: -100px; }
    100% { left: 100%; }
}

.deco-circle-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    border: 1.5px dashed rgba(0,0,0,0.15);
    border-radius: 50%;
    z-index: -2;
    animation: rotate-slow 60s linear infinite;
    pointer-events: none;
    transition: border-color 0.3s ease;
}

[data-theme="dark"] .deco-circle-bg {
    border-color: rgba(255,255,255,0.05);
}

.deco-circle-bg::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    border: 1.5px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    transition: border-color 0.3s ease;
}

[data-theme="dark"] .deco-circle-bg::before {
    border-color: rgba(255,255,255,0.05);
}

@keyframes rotate-slow {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.deco-ruler-v {
    position: absolute;
    right: 40px;
    top: 20%;
    height: 400px;
    width: 10px;
    border-right: 1px solid rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
    padding-right: 5px;
    transition: border-color 0.3s ease;
}

[data-theme="dark"] .deco-ruler-v {
    border-right-color: rgba(255,255,255,0.15);
}

.deco-ruler-v::before {
    content: '';
    width: 5px;
    height: 1px;
    background: var(--text-secondary);
    box-shadow: 0 10px 0 var(--text-secondary), 0 20px 0 var(--text-secondary), 0 30px 0 var(--text-secondary);
    /* transition: background 0.3s ease, box-shadow 0.3s ease; */
}

/* Rhombus Button */
.rhombus-btn {
    display: inline-block;
    position: relative;
    padding: 16px 40px;
    background: var(--text-primary);
    backdrop-filter: blur(10px);
    color: var(--bg-color);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 1.05rem;
    letter-spacing: 1.5px;
    border: 2px solid var(--text-primary);
    transition: all 0.3s ease;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.rhombus-btn:hover {
    background: var(--bg-color);
    color: var(--text-primary);
    border-color: var(--text-primary);
    padding-left: 50px;
}

.rhombus-btn::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--bg-color);
    transition: width 0.3s ease;
}

.rhombus-btn:hover::before {
    width: 15px;
    background: var(--text-primary);
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    padding: 0 4rem;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 3rem;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--border-color);
    transition: transform 0.3s ease, background 0.3s ease;
}

.nav-hidden {
    transform: translateY(-100%);
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1;
    margin-right: auto;
}

.logo .sub {
    font-size: 0.6rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 4px;
    font-family: var(--font-mono);
}

.nav-links {
    display: flex;
    gap: 2rem;
    height: 100%;
    align-items: center;
}

.nav-item {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-decoration: none;
    transition: background 0.3s, color 0.3s;
    padding: 0 20px;
    min-width: 120px;
}

.nav-item .en {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-primary);
    letter-spacing: 1px;
    display: block;
    text-align: center;
}

.nav-item .cn {
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.6;
    color: var(--text-secondary);
    margin-top: 2px;
    display: block;
    text-align: center;
    transition: opacity 0.3s, color 0.3s;
}

.nav-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-cyan);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.nav-item:hover:not(.active) {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.nav-item:hover:not(.active)::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-item.active {
    color: var(--text-primary);
    cursor: default;
    pointer-events: none;
}

.nav-item.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-item:hover:not(.active) .cn {
    opacity: 1;
    color: var(--accent-cyan);
}

.nav-item.active .cn {
    opacity: 1;
    color: var(--accent-cyan);
}

/* Theme Toggle Button */
.theme-toggle {
    width: 40px;
    height: 40px;
    border: 2px solid var(--text-primary);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    clip-path: polygon(
        5px 0, 
        100% 0, 
        100% calc(100% - 5px), 
        calc(100% - 5px) 100%, 
        0 100%, 
        0 5px
    );
}

.theme-toggle:hover {
    background: var(--text-primary);
    transform: scale(1.1);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
    fill: var(--text-primary);
    transition: stroke 0.3s ease, fill 0.3s ease;
}

.theme-toggle:hover svg {
    stroke: var(--bg-color);
    fill: var(--bg-color);
}

/* --- Layouts --- */
.container {
    /* max-width: 1600px; */
    margin: 0 auto;
    padding: 8rem 8rem 2rem;
    opacity: 1;
    transform: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
    position: relative;
    z-index: 20;
}

.container.fade-out {
    opacity: 0;
    transform: translateY(20px);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
}

.fade-in-up.visible {
    animation: fade-in-up 0.6s ease-out forwards;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header.hero {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    /* border-left: 1px solid var(--border-color); */
    padding-left: 4rem;
}

/* Hero row layout for controller + heading */
.hero-row {
    display: flex;
    gap: 2.5rem;
    width: 100%;
    align-items: center;
    justify-content: space-between;
}

.hero-text {
    flex: 1 1 60%;
    min-width: 0; /* allow text to wrap properly */
}

.hero-widget {
    flex: 0 0 auto;
    max-width: 660px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none; /* outer container not capturing pointer; inner canvas will */
}

.controller-wrap {
    width: 100%;
    max-width: 640px;
    aspect-ratio: 640 / 420; /* keeps the design aspect while allowing scaling */
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto; /* allow interactions inside */
    background: transparent; /* fully transparent background */
    padding: 0;
}

#gamepad-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: pointer;
    background: transparent; /* keep canvas background transparent */
}

#about-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: pointer;
    background: transparent; /* keep canvas background transparent */
}

.about-wrap {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    background: transparent;
    padding: 0;
}

.artworks-wrap {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    background: transparent;
    padding: 0;
}

#artworks-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: pointer;
    background: transparent;
}


@media (max-width: 900px) {
    .hero-row { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
    .hero-widget { width: 100%; flex: 1 1 auto; }
    .controller-wrap { max-width: 100%; aspect-ratio: 640 / 420; }
}

header.hero::before {
    content: '';
    position: absolute;
    left: -1px;
    top: 20%;
    height: 60%;
    width: 5px;
    background: var(--accent-cyan);
}

.hero h1 {
    font-size: clamp(3.5rem, 4vw + 2rem, 6rem);
    line-height: 0.9;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -2px;
}

.hero h1 .highlight {
    color: var(--accent-cyan);
}

.hero p {
    font-size: clamp(1rem, 0.8vw + 0.4rem, 1.2rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
    font-family: var(--font-mono);
}

/* --- Grid System for Projects/Art --- */
.section-title {
    width: 100%;
    height: 1px;
    background: rgba(128, 128, 128, 0.518);
    transform: translateX(15px) !important;
    margin: 2rem 0;
    position: relative;
}

/* small decorative mark at the left of the divider */
.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) translateX(-25px);
    width: 18px;
    height: 18px;
    background: var(--accent-cyan);
    clip-path: polygon(0 0, 100% 0, 0 100%);
}

/* Restore original heading-style for section titles on the About page */
.section-title-text {
    height: auto;
    background: transparent;
    font-size: clamp(1.5rem, 1.2vw + 0.5rem, 2rem);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.section-title-text::before {
    /* bring back the small triangle mark used for headings */
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: var(--accent-cyan);
    clip-path: polygon(0 0, 100% 0, 0 100%);
    position: static;
    transform: none;
    flex-shrink: 0;
}

/* Section Header with Button */
.section-header-with-button {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 2rem;
}

/* Featured Projects Horizontal Scroll Layout */
.featured-projects-scroll-wrapper,
.featured-artworks-scroll-wrapper {
    display: flex;
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 4rem;
}

.featured-projects-scroll,
.featured-artworks-scroll {
    flex: 1;
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1rem 0 2rem 0;
}

/* Shared scroll card base styles */
.scroll-card,
.art-scroll-card {
    min-width: 380px;
    max-width: 380px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-base);
    clip-path: var(--clip-medium);
}

.scroll-card {
    display: flex;
    flex-direction: column;
}

.art-scroll-card {
    height: 400px;
    display: block;
    padding: 8px;
}

.art-scroll-card-double {
    min-width: 788px;
    max-width: 788px;
}

/* Shared hover effects for scroll cards */
.scroll-card:hover,
.art-scroll-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-cyan);
}

.scroll-card-media {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.scroll-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.scroll-card:hover .scroll-card-media img {
    transform: scale(1.15);
}

.scroll-card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.scroll-card-content h3 {
    font-size: 1.3rem;
    text-transform: uppercase;
    font-weight: 800;
    margin: 0;
    letter-spacing: 1px;
    color: var(--text-primary);
}

.scroll-card-content p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-secondary);
    flex-grow: 1;
}

/* Large CTA Button - Tech Style */
.featured-cta-btn {
    min-width: 130px;
    max-width: 130px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.5rem 1rem;
    color: var(--text-primary);
    background: var(--bg-color);
    text-decoration: none;
    border: 2px solid var(--text-primary);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.2);
    clip-path: polygon(
        15px 0, 
        100% 0, 
        100% calc(100% - 15px), 
        calc(100% - 15px) 100%, 
        0 100%, 
        0 15px
    );
}

/* .featured-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: black;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: 0;
} */
/* 
.featured-cta-btn:hover::before {
    transform: scaleX(1);
} */

.featured-cta-btn:hover {
    transform: translateY(-5px);
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.25);
    background-color: var(--accent-cyan);
    border-color: var(--bg-color);
    color: var(--bg-color);
}

.cta-icon {
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    z-index: 1;
    font-family: var(--font-mono);
}

.cta-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    text-align: center;
    z-index: 1;
}

.cta-main {
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.cta-sub {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    opacity: 0.8;
}

.cta-arrow {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
    z-index: 1;
}

.featured-cta-btn:hover .cta-arrow {
    transform: translateX(5px);
}

/* Featured Artworks Scroll Wrapper */
.featured-artworks-scroll-wrapper {
    display: flex;
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 4rem;
}

.featured-artworks-scroll {
    flex: 1;
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1rem 0 2rem 0;
}

/* Art Scroll Card - Normal */
.art-scroll-card {
    min-width: 380px;
    max-width: 380px;
    height: 400px;
    display: block;
    position: relative;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
    overflow: hidden;
    box-shadow: var(--shadow-base);
    clip-path: var(--clip-medium);
    padding: 8px;
}

/* Art Scroll Card - Double Width */
.art-scroll-card-double {
    min-width: 788px;
    max-width: 788px;
}

.art-scroll-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-cyan);
}

.art-scroll-card-media {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
}

.art-scroll-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.6s ease;
    filter: brightness(0.9);
}

.art-scroll-card:hover .art-scroll-card-media img {
    transform: scale(1.05);
    filter: brightness(0.4);
}

.art-scroll-card .art-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    color: #fff;
    z-index: 3;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease;
}

.art-scroll-card:hover .art-overlay {
    transform: translateY(0);
    opacity: 1;
}

.art-scroll-card .art-overlay h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

.art-scroll-card .art-overlay p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    font-family: var(--font-mono);
}

/* Featured Arts Enhanced Button - Tech Style */
.featured-arts-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: var(--text-primary);
    color: var(--bg-color);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    border: 2px solid var(--text-primary);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.featured-arts-btn::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 100%;
    background: var(--accent-cyan);
    transition: width 0.3s ease;
    z-index: 0;
}

.featured-arts-btn:hover::before {
    width: 100%;
    right: auto;
    left: 0;
}

.featured-arts-btn:hover {
    transform: translateY(-3px);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.3);
    border-color: var(--accent-cyan);
}

.featured-arts-btn .btn-icon {
    font-size: 1.2rem;
    z-index: 1;
}

.featured-arts-btn .btn-text {
    z-index: 1;
}

.featured-arts-btn .btn-arrow {
    display: inline-block;
    transition: transform 0.3s ease;
    font-size: 1.2rem;
    z-index: 1;
}

.featured-arts-btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* View More Button (Legacy - for backwards compatibility) */
.view-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-family: var(--font-mono);
}

.view-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-cyan);
    transition: left 0.3s ease;
    z-index: -1;
}

.view-more-btn:hover {
    color: #fff;
    border-color: var(--accent-cyan);
}

.view-more-btn:hover::before {
    left: 0;
}

.view-more-btn .btn-arrow {
    display: inline-block;
    transition: transform 0.3s ease;
    font-size: 1.1rem;
}

.view-more-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.grid-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    /* max-width: 1400px; */
    margin: 0 auto;
}

/* Featured Grid for About Page (3 columns) */
.grid-container.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: auto;
    gap: 3rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(5px);
    border: 2px solid var(--border-color);
    position: relative;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: row;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    height: 400px;
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3), 0 4px 20px rgba(0, 0, 0, 0.15);
    /* Tech Corner Cut */
    clip-path: polygon(
        0 0, 
        100% 0, 
        100% calc(100% - 20px), 
        calc(100% - 20px) 100%, 
        0 100%
    );
}

/* Alternate layout: even cards have media on left */
.grid-container:not(.featured-grid) .card:nth-child(even) {
    flex-direction: row-reverse;
    clip-path: polygon(
        20px 0,
        100% 0,
        100% 100%,
        0 100%,
        0 20px
    );
}

.grid-container:not(.featured-grid) .card:nth-child(even) .card-media {
    border-left: none;
    border-right: none;
}

/* Keep vertical layout for featured grid on about page */
.featured-grid .card {
    flex-direction: column;
    height: auto;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-cyan);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.4s ease;
    z-index: 2;
}

.grid-container:not(.featured-grid) .card:nth-child(even)::before {
    left: auto;
    right: 0;
}

.card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.35), 0 15px 40px rgba(0, 86, 179, 0.2);
    border-color: var(--accent-cyan);
}

.card:hover::before {
    transform: scaleY(1);
}

/* Highlight used for scrolling back to a project */
.scroll-return-highlight {
    position: relative;
    z-index: 6;
    outline: 5px solid rgba(0, 200, 255, 0.95);
    outline-offset: 2px;
    box-shadow: 0 20px 60px rgba(0, 150, 255, 0.35), 0 0 30px rgba(0, 200, 255, 0.45) inset;
    transform: translateY(-8px) scale(1.02);
    transition: transform 0.35s ease, box-shadow 0.35s ease, outline-color 0.35s ease;
    animation: highlight-pulse 1.6s ease-in-out 1;
}

@keyframes highlight-pulse {
    0% {
        box-shadow: 0 18px 50px rgba(0,150,255,0.32), 0 0 18px rgba(0,200,255,0.28) inset;
        transform: translateY(-6px) scale(1.01);
    }
    50% {
        box-shadow: 0 32px 90px rgba(0,150,255,0.48), 0 0 48px rgba(0,200,255,0.6) inset;
        transform: translateY(-12px) scale(1.04);
    }
    100% {
        box-shadow: 0 18px 50px rgba(0,150,255,0.32), 0 0 18px rgba(0,200,255,0.28) inset;
        transform: translateY(-8px) scale(1.02);
    }
}

.card .card-media {
    width: 50%;
    flex-shrink: 0;
    background: #f0f0f0;
    position: relative;
    overflow: hidden;
    border-left: none;
}

/* .art-card .card-media {
    width: 100%;
    flex-shrink: 0;
    background: #f0f0f0;
    position: absolute;
    overflow: hidden;
    border-left: none;
} */

.featured-grid .card-media {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    border-left: none;
    border-bottom: none;
}

.card-media img, .card-media iframe {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: none;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.4s;
    /* filter: grayscale(100%) contrast(1.1); Removed grayscale as requested */
    /* Start slightly scaled to avoid visible gaps when transitioning back from hover */
    transform: scale(1.01);
    transform-origin: center center;
    will-change: transform;
}

.card:hover .card-media img {
    transform: scale(1.1);
    /* filter: grayscale(0%) contrast(1); */
}

/* Overlay effect on image */
.card-media::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 86, 179, 0.2) 100%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none; /* Allow clicks to pass through to iframe */
}

.card:hover .card-media::after {
    opacity: 1;
}

.card-content {
    padding: 3rem;
    position: relative;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, transparent 90%, rgba(0,0,0,0.03) 90%);
    width: 50%;
}

.featured-grid .card-content {
    padding: clamp(1rem, 2vw, 1.5rem);
    width: 100%;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    position: relative;
}

.card h3 {
    font-size: clamp(1.5rem, 1.2vw + 0.5rem, 2rem);
    text-transform: uppercase;
    font-weight: 800;
    margin: 0;
    letter-spacing: 1px;
}

.featured-grid .card h3 {
    font-size: clamp(1rem, 1.2vw + 0.3rem, 1.4rem);
    line-height: 1.2;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.card > p, .card-content > p {
    font-size: clamp(0.95rem, 0.8vw + 0.3rem, 1.1rem);
    line-height: 1.6;
    color: var(--text-secondary);
}

.featured-grid .card > p, .featured-grid .card-content > p {
    font-size: clamp(0.85rem, 0.8vw + 0.2rem, 1rem);
    line-height: 1.5;
}

.featured-grid .card-tags {
    margin-top: auto;
    padding-top: clamp(1rem, 1.5vw, 1.5rem);
}

.tag {
    font-size: clamp(0.7rem, 0.6vw + 0.2rem, 0.85rem);
    background: rgba(0,0,0,0.03);
    padding: clamp(6px, 0.5vw + 2px, 8px) clamp(12px, 1vw + 4px, 16px);
    text-transform: uppercase;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    border: 1px solid transparent;
    transition: all 0.3s;
}

.featured-grid .tag {
    font-size: clamp(0.7rem, 0.6vw + 0.2rem, 0.85rem);
    padding: clamp(6px, 0.5vw + 2px, 8px) clamp(12px, 1vw + 4px, 16px);
}

[data-theme="dark"] .tag {
    background: rgba(255,255,255,0.05);
    color: #b0b0b0;
}

.card:hover .tag {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    background: rgba(0, 86, 179, 0.05);
}

[data-theme="dark"] .card:hover .tag {
    background: rgba(90, 180, 255, 0.15);
}

/* Play Online Tag - Always Blue */
.tag.play-online {
    background: #0056b3;
    color: #ffffff;
    border: 1px solid #0056b3;
    font-weight: bold;
}

[data-theme="dark"] .tag.play-online {
    background: #5ab4ff;
    color: #000000;
    border: 1px solid #5ab4ff;
}

.card:hover .tag.play-online {
    background: #003d82;
    border-color: #003d82;
    color: #ffffff;
}

[data-theme="dark"] .card:hover .tag.play-online {
    background: #7ac5ff;
    border-color: #7ac5ff;
    color: #000000;
}

/* Gold Award Tag - Always Yellow/Gold */
.tag.gold-award {
    background: #ffd700;
    color: #000000;
    border: 1px solid #ffd700;
    font-weight: bold;
}

[data-theme="dark"] .tag.gold-award {
    background: #ffeb3b;
    color: #000000;
    border: 1px solid #ffeb3b;
}

.card:hover .tag.gold-award {
    background: #ffed4e;
    border-color: #ffed4e;
    color: #000000;
}

[data-theme="dark"] .card:hover .tag.gold-award {
    background: #fff176;
    border-color: #fff176;
    color: #000000;
}

/* Motion-Sensing Tag - Green */
.tag.motion-sensing {
    background: #27ae60;
    color: #ffffff;
    border: 1px solid #27ae60;
    font-weight: 700;
}

[data-theme="dark"] .tag.motion-sensing {
    background: #2ecc71;
    color: #000000;
    border: 1px solid #2ecc71;
}

.card:hover .tag.motion-sensing {
    background: #1e8449;
    border-color: #1e8449;
    color: #ffffff;
}

[data-theme="dark"] .card:hover .tag.motion-sensing {
    background: #66ff99;
    border-color: #66ff99;
    color: #000000;
}

.project-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

/* --- About Page Enhancements --- */
.profile-card {
    display: flex;
    gap: 4rem;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    padding: 4rem;
    border: 1px solid var(--border-color);
    position: relative;
    max-width: 1100px;
    width: 100%;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
    overflow: hidden;
    clip-path: var(--clip-large);
    transition: var(--transition-base);
}

.profile-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 60px rgba(0, 86, 179, 0.1);
    transform: translateY(-2px);
}

.profile-image {
    flex-shrink: 0;
    width: 320px;
    height: 420px;
    position: relative;
    border: 1px solid var(--border-color);
    padding: 10px;
    background: #fff;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.5s;
}

.profile-image:hover img {
    filter: grayscale(0%);
}

/* Tech stats decoration */
.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px dashed var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-label {
    font-size: 0.6rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.stat-bar {
    width: 100%;
    height: 4px;
    background: rgba(0,0,0,0.1);
    position: relative;
}

.stat-bar-fill {
    height: 100%;
    background: var(--accent-cyan);
}

/* --- Page Transitions (Simple Slide) --- */
.container, .project-detail-container, .about-container {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
    /* width: 150%; */
    /* max-width: 1600px; */
}

/* Exit States */
.container.exit-left, .project-detail-container.exit-left, .about-container.exit-left {
    opacity: 0;
    transform: translateX(-50px);
}

.container.exit-right, .project-detail-container.exit-right, .about-container.exit-right {
    opacity: 0;
    transform: translateX(50px);
}

.container.exit-fade, .project-detail-container.exit-fade, .about-container.exit-fade {
    opacity: 0;
}

/* Enter States (Start Positions) */
.container.enter-right, .project-detail-container.enter-right, .about-container.enter-right {
    opacity: 0;
    transform: translateX(50px);
}

.container.enter-left, .project-detail-container.enter-left, .about-container.enter-left {
    opacity: 0;
    transform: translateX(-50px);
}

.container.enter-fade, .project-detail-container.enter-fade, .about-container.enter-fade {
    opacity: 0;
}

/* Loading Overlay */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

#loader.active {
    opacity: 1;
    pointer-events: all;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- About Page Styles --- */
.about-container {
    display: block;
    min-height: 80vh;
}

.contact-info {
    margin-top: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    padding-top: 1.5rem;
    width: 100%;
}

.info-item {
    display: flex;
    flex-direction: column;
    min-width: 0;
    gap: 5px;
}

.value-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-svg {
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.social-icons-row {
    display: flex;
    gap: 20px;
    align-items: center;
}

.icon-link {
    color: var(--text-secondary);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border: 1px solid transparent;
    border-radius: 4px;
}

.icon-link:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    background: rgba(0, 86, 179, 0.05);
    transform: translateY(-2px);
}

[data-theme="dark"] .icon-link:hover {
    background: rgba(90, 180, 255, 0.15);
}

.social-icon-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    filter: brightness(0);
    transition: filter 0.3s ease;
}

[data-theme="dark"] .social-icon-img {
    filter: brightness(0) invert(1);
}

.icon-link:hover .social-icon-img {
    filter: brightness(0) sepia(1) saturate(5) hue-rotate(175deg);
}

[data-theme="dark"] .icon-link:hover .social-icon-img {
    filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(175deg);
}

/* --- Artworks Specific Styles --- */
.art-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: 2rem;
    /* max-width: 100%; */
    margin: auto;
    padding: 0 2rem;
}

.art-card {
    position: relative;
    overflow: hidden;
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    padding: 8px;
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3), 0 4px 20px rgba(0, 0, 0, 0.15);
    clip-path: polygon(
        20px 0, 
        100% 0, 
        100% calc(100% - 20px), 
        calc(100% - 20px) 100%, 
        0 100%, 
        0 20px
    );
    width: 100%;
    height: 0;
    padding-bottom: 75%;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.art-card.double-width {
    grid-column: span 2;
    padding-bottom: 37.5%;
}

/* Allow a featured-grid card to span two columns */
.grid-container.featured-grid .card.double-col {
    grid-column: span 2;
}

/* Spacing for featured arts when placed under projects */
#featured-arts {
    margin-top: 10rem;
}

.art-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--accent-cyan);
    border-right: 2px solid var(--accent-cyan);
}

/* Override blue accent line for art-grid cards - always appear from left */
.art-grid .art-card::before {
    left: 0 !important;
    right: auto !important;
}

.art-card .card-media {
    width: auto;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    overflow: hidden;
    position: absolute;
}

.art-card .card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease, filter 0.6s ease;
    filter: brightness(0.9);
    display: block;
}

.art-card:hover .card-media img {
    transform: scale(1.05);
    filter: brightness(0.4); /* Darken image on hover to make text readable */
}

.art-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    color: #fff;
    z-index: 3;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease;
}

.art-card:hover .art-overlay {
    transform: translateY(0);
    opacity: 1;
}

.art-overlay h3 {
    font-size: clamp(1.2rem, 1vw + 0.3rem, 1.5rem);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

.art-overlay p {
    font-size: clamp(0.75rem, 0.7vw + 0.2rem, 0.9rem);
    color: rgba(255, 255, 255, 0.8);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: var(--font-mono);
}

/* Lightbox Styles */
#lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 3000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

#lightbox.active {
    opacity: 1;
    pointer-events: all;
}

#lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

#lightbox.active img {
    transform: scale(1);
}

#lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    font-family: var(--font-mono);
    z-index: 3001;
}

/* --- New Profile Layout Styles --- */
.profile-section-new {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 4rem;
    margin-top: 4rem;
    margin-bottom: 4rem;
    position: relative;
}

.profile-content-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.profile-name-large {
    font-size: clamp(3.5rem, 4vw + 2rem, 6rem);
    line-height: 0.9;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1rem;
}

.profile-name-large .highlight {
    color: var(--accent-cyan);
}

.profile-bio-box {
    max-width: 600px;
    padding-left: 20px;
    border-left: 2px solid var(--accent-cyan);
}

.profile-bio-text {
    font-size: clamp(1rem, 0.9vw + 0.4rem, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.8;
}

.profile-tags-row {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.profile-content-right {
    flex-shrink: 0;
    width: 400px;
}

.profile-image-right {
    flex-shrink: 0;
    width: 30vw;
    position: relative;
    margin-left: 0rem;
}

.about-self-image {
    width: 100%;
    height: auto;
    border: 2px solid var(--accent-cyan);
    padding: 8px;
    background: var(--bg-color);
}

.profile-image-large {
    width: 100%;
    height: 500px;
    position: relative;
    border: 1px solid var(--border-color);
    padding: 10px;
    background: var(--bg-color);
    /* Tech Corner Cut */
    clip-path: polygon(
        20px 0, 
        100% 0, 
        100% calc(100% - 20px), 
        calc(100% - 20px) 100%, 
        0 100%, 
        0 20px
    );
}
/* 
.profile-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(100%) brightness(100%);
    transition: filter 0.5s;
} */


/* --- Project Detail Gallery --- */
.project-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.project-gallery img {
    width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    padding: 5px;
    background: var(--bg-color);
    transition: var(--transition-base);
    cursor: default;
    pointer-events: none;
    clip-path: var(--clip-small);
}

/* ------------------------------------------------------------------ */
/* Disable text selection for images and most title-like headings       */
/* Add any classes to the selector list below if you want pages to     */
/* treat them as non-selectable titles (or add `.no-select` to any      */
/* element in the HTML to make it non-selectable).                     */
/* ------------------------------------------------------------------ */
img, picture img, svg, canvas, video,
.glitch-text, .profile-name-large, .hero h1, .logo,
.card h3, .featured-grid .card h3, .art-overlay h3,
.section-title-text, .nav-item .en, .nav-item .cn {
    -webkit-user-select: none; /* Safari */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* IE10+/Edge */
    user-select: none; /* Standard */
    -webkit-touch-callout: none; /* iOS Safari - disable callout */
    cursor: default; /* Use default pointer to reduce unintended text selection UI */
}

/* Utility helper: add this class to any element in the HTML to disable selection */
.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    cursor: default;
}

/* Hover effects disabled for project gallery images */
/* .project-gallery img:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 86, 179, 0.1);
} */

/* --- Floating Project Controls --- */
.project-controls {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 3rem 5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1100;
    transition: transform 0.3s ease, opacity 0.3s ease;
    background: transparent;
}

.project-controls-right {
    display: flex;
    gap: 1.5rem;
}

.project-controls.controls-hidden {
    transform: translateY(100%);
    opacity: 0;
}

/* Responsive adjustments for controls */
@media (max-width: 768px) {
    .project-controls {
        padding: 1rem 2rem;
        flex-direction: row; /* Keep row layout */
        gap: 1rem;
    }
    
    .rhombus-btn {
        padding: 10px 15px;
        font-size: 0.8rem;
    }

    /* Section header with button responsive */
    .section-header-with-button {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .view-more-btn {
        font-size: 0.75rem;
        padding: 0.6rem 1.2rem;
    }

    /* Featured projects scroll responsive */
    .featured-projects-scroll-wrapper {
        flex-direction: column;
        gap: 1.5rem;
    }

    .featured-projects-scroll {
        overflow-x: auto;
    }

    .scroll-card {
        min-width: 280px;
        max-width: 280px;
    }

    .featured-cta-btn {
        min-width: 100%;
        max-width: 100%;
        flex-direction: row;
        padding: 1.5rem;
        gap: 1rem;
    }

    .cta-icon {
        font-size: 2.5rem;
    }

    .cta-text {
        flex-grow: 1;
        align-items: flex-start;
    }

    .featured-arts-btn {
        font-size: 0.8rem;
        padding: 0.8rem 1.5rem;
    }
}

/* Desktop: Make CTA button smaller - fixed width */
@media (min-width: 769px) {
    .featured-projects-scroll {
        flex: 1;
    }

    .featured-cta-btn {
        flex: 0 0 130px;
        min-width: 130px;
        max-width: 130px;
    }
}

.webgl-container {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin: 2rem 0 3rem 0;
    clip-path: var(--clip-large);
}

.webgl-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Game Start Button Overlay */
.game-start-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.game-start-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-image: inherit;
    filter: brightness(0.2);
    transition: filter 0.3s ease;
    z-index: -1;
}

.game-start-overlay:hover::before {
    filter: brightness(0.25);
}

.game-start-overlay.hidden {
    display: none;
}

.game-start-btn {
    padding: 1.5rem 3rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid #ffffff;
    cursor: pointer;
    transition: var(--transition-base);
    clip-path: var(--clip-small);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.game-start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #ffffff;
    transition: left 0.3s ease;
    z-index: -1;
}

.game-start-btn:hover::before {
    left: 0;
}

.game-start-btn:hover {
    color: #000000;
    border-color: #ffffff;
    transform: scale(1.05);
}

/* Footer Styles */
.site-footer {
    background: var(--card-bg);
    z-index: 10;
    border: 2px solid var(--border-color);
    margin: 6rem 2rem 2rem 2rem;
    padding: 3rem;
    transition: var(--transition-base);
    position: relative;
    clip-path: var(--clip-large);
}

[data-theme="dark"] .site-footer {
    background: rgb(5, 5, 5);
}

/* Footer decorative corners - use utility class */
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border-top: 3px solid var(--accent-cyan);
    border-left: 3px solid var(--accent-cyan);
    z-index: 2;
}

.site-footer::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
    height: 40px;
    border-bottom: 3px solid var(--accent-cyan);
    border-right: 3px solid var(--accent-cyan);
    z-index: 2;
}

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

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

.footer-icon {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: brightness(0);
    transition: filter 0.3s ease;
}

[data-theme="dark"] .footer-icon {
    filter: brightness(0) invert(1);
}

.footer-social {
    display: flex;
    gap: 30px;
    align-items: center;
}

.footer-social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border-radius: 4px;
    border: 1px solid transparent;
    padding: 5px;
}

.footer-social-link:hover {
    background: var(--bg-color);
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
}

.footer-social-link img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0);
    transition: filter 0.3s ease;
}

[data-theme="dark"] .footer-social-link img {
    filter: brightness(0) invert(1);
}

.footer-social-link:hover img {
    filter: brightness(0) sepia(1) saturate(5) hue-rotate(175deg);
}

[data-theme="dark"] .footer-social-link:hover img {
    filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(175deg);
}

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.footer-hosted {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.hosted-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: right;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.github-pages-link {
    width: 200px;
    height: 100px;
    display: block;
    transition: transform 0.3s ease;
}

.github-pages-link:hover {
    transform: translateY(-3px);
}

.github-pages-link img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0);
    transition: filter 0.3s ease;
}

[data-theme="dark"] .github-pages-link img {
    filter: brightness(0) invert(1);
}

.github-pages-link:hover img {
    opacity: 0.8;
}

.footer-divider {
    width: 100%;
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 2rem 0 0 0;
    opacity: 0.5;
}

@media (max-width: 768px) {
    .site-footer {
        margin: 4rem 1rem 1rem 1rem;
        padding: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
    
    .footer-right {
        align-items: flex-start;
    }
    
    .footer-hosted {
        align-items: flex-start;
    }
    
    .hosted-text {
        text-align: left;
    }
    
    .github-pages-link {
        width: 150px;
        height: 80px;
    }
}

/* --- YouTube Lazy Loading Styles --- */
.youtube-lazy {
    position: relative;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    overflow: hidden;
}

.youtube-lazy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    background-image: inherit;
    background-size: 101%;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1);
    background-size: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.youtube-lazy:hover::before {
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .youtube-lazy::before {
    background-color: rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .youtube-lazy:hover::before {
    background-color: rgba(0, 0, 0, 0.4);
}

/* .youtube-lazy::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(100, 180, 255, 0.2);
    transition: background-color 0.3s ease;
} */

/* [data-theme="dark"] .youtube-lazy::after {
    background-color: rgba(0, 0, 0, 0.5);
} */

.youtube-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
}

.youtube-icon {
    width: 80px;
    height: 80px;
    filter: none;
    transition: transform 0.3s ease;
}

.youtube-lazy:hover .youtube-icon {
    transform: scale(1.15);
}

.youtube-lazy iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Make YouTube cover blur and scale when the whole card is hovered, not only the media area */
.card:hover .youtube-lazy {
    background-size: cover;
}

.card:hover .youtube-lazy::before {
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

/* .card:hover .youtube-lazy::after {
    background-color: rgba(100, 180, 255, 0.2);
} */

/* [data-theme="dark"] .card:hover .youtube-lazy::after {
    background-color: rgba(0, 0, 0, 0.3);
} */

[data-theme="dark"] .card:hover .youtube-lazy::before {
    background-color: rgba(0, 0, 0, 0.4);
}

/* ===================================
   EDUCATION, SKILLS & HONORS SECTIONS
   =================================== */

/* --- Common Section Styling --- */
.timeline-section{
    margin: 0px 0;
    padding: 0;
}
.skills-section {
    margin: 120px 0;
    padding: 0;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

/* --- Timeline Design (Education & Honors) --- */
.timeline-container {
    position: relative;
    padding: 40px 0;
    margin: 0 auto;
    width: 90%;
    max-width: none;
}

/* Vertical Timeline Line */
.timeline-container::before {
    content: '';
    position: absolute;
    left: 241px;
    top: 48px;
    bottom: 100px;
    width: 2px;
    background: var(--border-color);
    z-index: 0;
}

.timeline-item {
    position: relative;
    padding: 0 40px 80px 300px;
    transition: all 0.4s ease;
}

.timeline-item:last-child {
    padding-bottom: 40px;
}

/* Timeline Date on Left */
.timeline-date-left {
    position: absolute;
    left: 0;
    top: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    width: 180px;
    text-align: right;
    padding-right: 20px;
}

/* Timeline Marker/Dot */
.timeline-marker {
    position: absolute;
    left: 229px;
    top: 8px;
    width: 26px;
    height: 26px;
    background: var(--accent-cyan);
    border: 3px solid var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--bg-color), 0 0 12px rgba(0, 86, 179, 0.3);
    z-index: 2;
}

.timeline-marker.award-marker {
    /* Same style as default now */
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

/* Timeline Content Card */
.timeline-content {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-left: 3px solid var(--accent-cyan);
    padding: 25px 30px;
    border-radius: 0px;
    position: relative;
    box-shadow: 6px 6px 0 rgba(0, 86, 179, 0.15);
    clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
    transition: border-top-color 0.2s ease, border-right-color 0.2s ease, border-bottom-color 0.2s ease;
}

.timeline-item:hover .timeline-content {
    border-top-color: #c0c0c0;
    border-right-color: #c0c0c0;
    border-bottom-color: #c0c0c0;
}

[data-theme="dark"] .timeline-item:hover .timeline-content {
    border-top-color: #505050;
    border-right-color: #505050;
    border-bottom-color: #505050;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--border-color);
    border-right: 2px solid var(--border-color);
    z-index: 1;
    transition: border-top-color 0.3s ease, border-right-color 0.3s ease;
}

.timeline-item:hover .timeline-content::before {
    border-top-color: #c0c0c0;
    border-right-color: #c0c0c0;
}

[data-theme="dark"] .timeline-item:hover .timeline-content::before {
    border-top-color: #505050;
    border-right-color: #505050;
}

/* Removed hover state to keep it static looking */

/* Timeline Header - Title and Date on Same Line */
.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.timeline-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    flex: 1;
    min-width: 0;
    margin: 0;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-cyan);
    white-space: nowrap;
    padding: 4px 12px;
    background: rgba(90, 180, 255, 0.1);
    border: 1px solid var(--accent-cyan);
}

/* Timeline Text Styling */
.timeline-period {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--bg-color);
    background: var(--accent-cyan);
    padding: 6px 14px;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.timeline-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.timeline-location {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-style: italic;
}

.timeline-detail {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.detail-label {
    color: var(--text-secondary);
    margin-right: 10px;
}

.detail-value {
    font-weight: 700;
    font-size: 1.1rem;
}

/* Honor Layout - Title Left, Awards Right */
.honor-layout {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 20px;
    flex-wrap: wrap;
}

.honor-single-line {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.honor-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.honor-divider {
    color: var(--border-color);
    font-weight: 300;
    flex-shrink: 0;
}

.honor-awards {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    text-align: right;
    padding: 6px 15px;
    background: rgba(0, 86, 179, 0.05);
    border: 1px solid var(--accent-cyan);
    border-left-width: 4px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.honor-awards::before {
    content: '◈';
    color: var(--accent-cyan);
    font-size: 0.9em;
}

.honor-awards.gold-color {
    color: #d4af37;
    font-weight: 700;
    font-size: 1.15rem;
    background: rgba(212, 175, 55, 0.1);
    border-color: #d4af37;
}

.honor-awards.gold-color::before {
    content: '★';
    color: #d4af37;
}

.honor-year {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

/* Award Badges - Keep for backward compatibility but hide */
.award-badges,
.award-inline {
    display: none;
}

.award-badge {
    display: none;
}

/* --- Skills Section Design --- */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 35px;
    padding: 40px 0;
    width: 90%;
    max-width: none;
    margin: 0 auto;
}

.skill-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color); /* Always active color */
    border-left: 3px solid var(--accent-cyan);
    padding: 35px 30px;
    position: relative;
    overflow: hidden;
    transition: border-top-color 0.2s ease, border-right-color 0.2s ease, border-bottom-color 0.2s ease;
}

.skill-card:hover {
    border-top-color: #c0c0c0;
    border-right-color: #c0c0c0;
    border-bottom-color: #c0c0c0;
}

[data-theme="dark"] .skill-card:hover {
    border-top-color: #505050;
    border-right-color: #505050;
    border-bottom-color: #505050;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--border-color);
    border-left: 2px solid var(--border-color);
    z-index: 1;
}

.skill-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-bottom: 2px solid var(--border-color);
    border-right: 2px solid var(--border-color);
    z-index: 1;
}

/* Removed hover transform */

/* Accent Line Animation */
.skill-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-cyan); /* Always active border */
}

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

.skill-list li {
    padding: 12px 0 12px 30px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    top: 6px;
    color: var(--accent-cyan);
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.6;
}
/* Removed li hover animation */

.skill-highlight {
    color: var(--accent-cyan);
    font-weight: 600;
    padding: 2px 6px;
    background: rgba(90, 180, 255, 0.2);
    border-radius: 5px;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .timeline-section,
    .skills-section {
        padding: 0;
        margin: 60px 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .timeline-title {
        font-size: 1.2rem;
    }
    
    .timeline-date {
        align-self: flex-start;
    }
    
    .honor-single-line {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .honor-title {
        font-size: 1.1rem;
    }
    
    .honor-divider {
        display: none;
    }
    
    .honor-awards {
        font-size: 0.95rem;
        text-align: left;
        width: 100%;
    }
    
    .honor-layout {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .timeline-container::before {
        left: 20px;
    }
    
    .timeline-marker {
        left: 10px;
    }
    
    .timeline-item {
        padding: 0 0 50px 70px;
    }
    
    .timeline-content::before,
    .timeline-content::after {
        display: none;
    }
    
    .timeline-item:hover .timeline-content {
        transform: translateY(-5px);
    }
    
    .skills-container {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 20px 0;
    }
    
    .skill-card {
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    .timeline-title {
        font-size: 1.2rem;
    }
    
    .timeline-subtitle {
        font-size: 0.95rem;
    }
    
    .skill-card-title {
        font-size: 1.2rem;
    }
    
    .award-badges {
        flex-direction: column;
    }
    
    .award-badge {
        text-align: center;
    }
}