/* Modern Reset & Variables */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --accent-primary: #8b5cf6;
    /* Violet */
    --accent-secondary: #06b6d4;
    /* Cyan */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --success: #10b981;
    --error: #ef4444;
    --card-bg: rgba(30, 41, 59, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --font-main: 'Outfit', sans-serif;
    --font-code: 'Fira Code', monospace;
    --animation-speed: 0.3s;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(6, 182, 212, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title span {
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.grid {
    display: grid;
    gap: 2rem;
}

/* Global Section Styling */
section {
    padding: 6rem 0;
    position: relative;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    padding: 1.5rem 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: var(--glass-border);
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-secondary);
}

/* Mobile Menu Button */
.menu-btn {
    display: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 8rem;
    position: relative;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.tech-stack {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.tech-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-secondary);
    border: var(--glass-border);
    transition: all 0.3s;
}

.tech-icon:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    transform: translateY(-5px);
}

/* Cards (Glassmorphism) */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: var(--glass-border);
    border-radius: 1.5rem;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Skills Section */
.skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Projects Section */
.projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.project-card {
    padding: 0;
    overflow: hidden;
}

.project-image {
    height: 200px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.project-image:hover img {
    transform: scale(1.05);
}

.project-content {
    padding: 2rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-primary);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

/* GAME SECTION (Key Area) */
#game {
    padding: 6rem 0;
}

.game-wrapper {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.game-header-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    background: rgba(15, 23, 42, 0.6);
    padding: 1rem 2rem;
    border-radius: 1rem;
    border: var(--glass-border);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-secondary);
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.game-card {
    background: #131c31;
    border: 1px solid rgba(139, 92, 246, 0.2);
    box-shadow: 0 0 50px rgba(139, 92, 246, 0.1);
    border-radius: 1.5rem;
    overflow: hidden;
    position: relative;
}

.timer-bar {
    height: 4px;
    background: var(--bg-tertiary);
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    width: 100%;
    transition: width 1s linear;
}

.question-area {
    padding: 2.5rem;
}

.code-snippet {
    background: #0d1117;
    /* Github dark code bg */
    padding: 1.5rem;
    border-radius: 1rem;
    margin: 1.5rem 0;
    font-family: var(--font-code);
    font-size: 0.9rem;
    border: 1px solid #30363d;
    overflow-x: auto;
    color: #e6edf3;
}

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

.game-option {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.25rem;
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    color: var(--text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.game-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.game-option.selected {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
    color: var(--text-primary);
}

.game-option.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.game-option.wrong {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.feedback-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 10;
}

.feedback-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.feedback-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes bounce {
    0% {
        transform: scale(0);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

/* Footer */
footer {
    padding: 4rem 0;
    text-align: center;
    background: var(--bg-secondary);
    border-top: var(--glass-border);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .options-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
        /* Add JS toggle later if needed, currently simplifying */
    }

    .menu-btn {
        display: block;
    }

    h1 {
        font-size: 3rem;
    }

    .hero {
        padding-top: 8rem;
    }
}