/* Math Games Hub - Premium Styles */

@font-face {
    font-family: 'Angsana New';
    src: url('../../junior/assets/Angsana New/Angsana New.woff2') format('woff2'),
        url('../../junior/assets/Angsana New/Angsana New.woff') format('woff'),
        url('../../junior/assets/Angsana New/Angsana New.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Sarabun:wght@300;400;600;800&display=swap');

:root {
    --primary: hsl(25, 100%, 55%);
    --primary-glow: hsla(25, 100%, 55%, 0.4);
    --secondary: hsl(142, 70%, 45%);
    --secondary-glow: hsla(142, 70%, 45%, 0.4);
    --bg-dark: #0f172a;
    --text-light: #f8fafc;
    --text-dim: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.1);
    --radius: 28px;
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%23f97316" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"></circle></svg>') 12 12, auto;
}

body {
    /* font-family: 'Sarabun', 'Outfit', sans-serif; */
    font-family: 'Angsana New', 'Sarabun', sans-serif;
    font-size: 20px;
    background: var(--bg-dark);
    color: var(--text-light);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Dynamic Animated Background */
.bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 0% 0%, #1e293b 0%, #0f172a 100%);
    overflow: hidden;
}

.shape {
    position: absolute;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite alternate ease-in-out;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation-delay: -5s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    left: -100px;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: #5b21b6;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.15;
    animation: pulse 10s infinite alternate;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }

    100% {
        transform: translateY(100px) rotate(20deg);
    }
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
    }

    100% {
        transform: translate(-50%, -50%) scale(1.5);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
}

/* Navigation & Header */
.header {
    text-align: center;
    padding: 4rem 0 2rem;
    animation: fadeInDown 0.8s var(--transition);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dim);
    text-decoration: none;
    background: var(--glass-bg);
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    margin-bottom: 3rem;
    font-size: 1.1rem;
    transition: var(--transition);
    backdrop-filter: blur(12px);
}

.back-link:hover {
    color: var(--text-light);
    border-color: var(--primary);
    background: var(--primary-glow);
    transform: translateX(-5px);
}

.header h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.4));
}

.header h1 span {
    display: block;
    font-size: 0.6em;
    font-family: 'Angsana New', 'Sarabun', sans-serif;
    color: var(--text-dim);
    -webkit-text-fill-color: initial;
    letter-spacing: 4px;
    margin-top: 0.5rem;
    font-weight: 400;
}

.header p {
    font-size: 1.8rem;
    font-family: 'Angsana New', 'Sarabun', sans-serif;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto;
}

/* Search Interface */
.search-container {
    max-width: 650px;
    margin: 4rem auto 6rem;
    position: relative;
    animation: fadeInUp 1s var(--transition) 0.2s backwards;
}

.search-container input {
    width: 100%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 1.4rem 2rem 1.4rem 4.5rem;
    color: var(--text-light);
    font-size: 1.3rem;
    font-family: 'Sarabun', sans-serif;
    backdrop-filter: blur(20px);
    transition: var(--transition);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    background-clip: padding-box;
    box-shadow: 0 0 30px var(--primary-glow);
    transform: translateY(-5px);
}

.search-icon {
    position: absolute;
    left: 1.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    opacity: 0.8;
}

/* Grid System */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    perspective: 1000px;
    margin-bottom: 5rem;
}

.game-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-decoration: none;
    text-align: center;
    backdrop-filter: blur(15px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.game-card:hover {
    transform: translateY(-20px) scale(1.02);
    border-color: var(--primary);
    background: var(--glass-hover);
    box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.5);
}

.game-card:hover::before {
    opacity: 1;
}

/* Card Content Aesthetics */
.game-icon {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 35%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2.5rem;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.game-card:hover .game-icon {
    transform: scale(1.1) rotate(10deg);
    background: var(--primary-glow);
    border-color: var(--primary);
    box-shadow: 0 0 30px var(--primary-glow);
    color: #fff;
}

.game-card h3 {
    font-size: 2.2rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    color: var(--text-light);
}

.game-card h3 span {
    font-size: 0.8em;
    display: block;
    color: var(--text-dim);
    margin-top: 0.4rem;
    font-weight: 400;
    font-family: 'Angsana New', 'Sarabun', sans-serif;
}

.game-card p {
    font-size: 1.6rem;
    font-family: 'Angsana New', 'Sarabun', sans-serif;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
    line-height: 1.5;
    padding: 0 10px;
}

.difficulty-tag {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 0.75rem;
    padding: 6px 16px;
    border-radius: 50px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    backdrop-filter: blur(10px);
}

.difficulty-tag.easy {
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.3);
    background: rgba(74, 222, 128, 0.1);
}

.difficulty-tag.medium {
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
    background: rgba(251, 191, 36, 0.1);
}

.difficulty-tag.hard {
    color: #f87171;
    border: 1px solid rgba(248, 113, 113, 0.3);
    background: rgba(248, 113, 113, 0.1);
}

.play-btn {
    margin-top: auto;
    background: linear-gradient(135deg, var(--primary), #ea580c);
    color: #fff;
    padding: 14px 40px;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.3rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(249, 115, 22, 0.3);
}

.game-card:hover .play-btn {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(249, 115, 22, 0.5);
    background: linear-gradient(135deg, #fb923c, var(--primary));
}

/* Icons Specific Coloring */
.game-card.add .game-icon {
    color: var(--primary);
}

.game-card.info .game-icon {
    color: #38bdf8;
}

.game-card.mul .game-icon {
    color: #fbbf24;
}

.game-card.div .game-icon {
    color: var(--secondary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-dim);
    font-size: 1.2rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header {
        padding: 2rem 0;
    }

    .games-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .game-card {
        padding: 2.5rem 1.5rem;
    }

    .header h1 {
        font-size: 3.5rem;
    }
}