:root {
    --bg-dark: #050505;
    --primary: #00ff41;
    --accent: #58a6ff;
    --glass: rgba(20, 20, 20, 0.8);
    --text: #ffffff;
    --border: #333;
}

[data-theme="light"] {
    --bg-dark: #ffffff;
    --primary: #0066cc;
    --accent: #ff6b35;
    --glass: rgba(255, 255, 255, 0.9);
    --text: #000000;
    --border: #ddd;
}

[data-theme="high-contrast"] {
    --bg-dark: #000000;
    --primary: #ffff00;
    --accent: #ffffff;
    --glass: rgba(0, 0, 0, 0.95);
    --text: #ffffff;
    --border: #ffffff;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

body {
    background: var(--bg-dark);
    color: var(--text);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    transition: all 0.3s ease;
    position: relative;
}

#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.1;
}

.yana-hud-line {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #ff00cc, #3333ff, var(--primary));
    z-index: 9999;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
    animation: pulse-hud 2s infinite;
}

@keyframes pulse-hud {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.matrix-nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 25px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 1000;
    transition: all 0.3s ease;
}

.brand {
    color: var(--primary);
    font-weight: bold;
    font-size: 1.2em;
}

.nav-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    background: var(--primary);
    color: var(--bg-dark);
    transform: translateY(-2px);
}

.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 100px 20px 50px;
}

.glitch {
    font-size: clamp(3rem, 8vw, 8rem);
    font-weight: bold;
    color: var(--primary);
    animation: glitch 2s infinite;
}

@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

.terminal-text {
    font-family: 'Courier New', monospace;
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    line-height: 1.6;
    margin: 30px 0;
    opacity: 0;
    animation: typewriter 3s steps(40) 1s forwards;
}

@keyframes typewriter {
    to { opacity: 1; }
}

.highlight {
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent);
}

.blink {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.formula-ohm {
    font-size: clamp(1.5rem, 4vw, 3rem);
    color: var(--accent);
    margin: 30px 0;
    text-shadow: 0 0 20px var(--accent);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    color: var(--primary);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 30px;
    text-align: center;
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.list-layout {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.project-card, .mono-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.3s ease;
}

.project-card:hover, .mono-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 255, 65, 0.2);
    border-color: var(--primary);
}

.project-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

.meta {
    display: flex;
    justify-content: space-between;
    margin: 15px 0;
    font-size: 0.9em;
    opacity: 0.8;
}

.actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn {
    padding: 8px 16px;
    background: var(--border);
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover, .btn.highlight {
    background: var(--primary);
    color: var(--bg-dark);
}

.mono-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(45deg, #000, #222);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 15px 25px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: bold;
}

.mono-btn:hover {
    border-color: #ea5353;
    box-shadow: 0 0 15px rgba(234, 83, 83, 0.3);
    transform: translateY(-2px);
}

.gist-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.gist-item:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.gist-name {
    color: var(--primary);
    text-decoration: none;
    font-weight: bold;
}

.activity-item {
    padding: 12px;
    background: var(--glass);
    border-left: 3px solid var(--primary);
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.activity-time {
    color: var(--accent);
    font-size: 0.8em;
}

.activity-action {
    color: var(--text);
}

.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin: 30px 0;
}

.social-links a {
    padding: 15px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    text-align: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.payment-section {
    margin: 30px 0;
    padding: 20px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.payment-section h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

.payment-section code {
    background: var(--border);
    padding: 10px;
    border-radius: 5px;
    display: block;
    word-break: break-all;
}

.ai-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 350px;
    height: 500px;
    background: var(--glass);
    backdrop-filter: blur(15px);
    border: 1px solid var(--primary);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.ai-panel.hidden {
    transform: translateY(100%) scale(0.8);
    opacity: 0;
    pointer-events: none;
}

.ai-header {
    background: var(--primary);
    color: var(--bg-dark);
    padding: 15px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
}

.model-selector {
    padding: 15px;
    background: var(--glass);
    border-bottom: 1px solid var(--border);
}

.model-selector label {
    display: block;
    margin-bottom: 8px;
    color: var(--primary);
}

.model-selector select {
    width: 100%;
    padding: 8px;
    background: var(--border);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 5px;
}

.model-selector small {
    display: block;
    margin-top: 8px;
    color: var(--accent);
    font-size: 0.8em;
}

.chat-box {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    font-size: 0.9em;
}

.msg {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 10px;
    max-width: 80%;
}

.msg.ai {
    background: var(--primary);
    color: var(--bg-dark);
    margin-left: auto;
}

.msg.user {
    background: var(--border);
    color: var(--text);
}

.msg.system {
    background: transparent;
    color: var(--accent);
    font-style: italic;
    text-align: center;
    max-width: 100%;
}

.input-area {
    display: flex;
    padding: 15px;
    gap: 10px;
}

.input-area input {
    flex: 1;
    background: var(--border);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px;
    border-radius: 8px;
    outline: none;
}

.input-area button {
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
}

.progress-bar {
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
    margin: 0 15px 15px;
    transition: width 0.3s ease;
    width: 0%;
}

.game-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

#game-canvas {
    border: 2px solid var(--primary);
    border-radius: 10px;
    background: #000;
    max-width: 100%;
    height: auto;
}

#game-info {
    color: var(--accent);
    font-size: 0.9em;
    text-align: center;
}

.theme-switcher {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.theme-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-btn.dark { background: #000; }
.theme-btn.light { background: #fff; }
.theme-btn.contrast { background: linear-gradient(45deg, #000, #ff0); }

@media (max-width: 768px) {
    .matrix-nav {
        position: relative;
        top: 0;
        left: 0;
        transform: none;
        margin: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-section {
        padding: 50px 20px;
    }
    
    .ai-panel {
        width: calc(100vw - 40px);
        height: 60vh;
        bottom: 10px;
        right: 20px;
        left: 20px;
    }
    
    .grid-layout {
        grid-template-columns: 1fr;
    }
    
    #game-canvas {
        width: 100%;
        height: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}