:root {
    --neon-blue: #00f3ff;
    --neon-pink: #bc13fe;
    --neon-green: #0aff00;
    --bg-dark: #050510;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #ffffff;
    --font-main: 'Rajdhani', sans-serif; /* Futuristic font */
}

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&display=swap');

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    margin: 0;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(188, 19, 254, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(0, 243, 255, 0.1) 0%, transparent 20%);
}

/* Glassmorphism Containers */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Typography */
h1, h2, h3 {
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0;
}

h1 {
    font-size: 3rem;
    text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
}

a {
    color: var(--neon-blue);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--neon-pink);
    text-shadow: 0 0 8px var(--neon-pink);
}

/* Forms */
input[type="text"], input[type="password"], input[type="email"] {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--neon-blue);
    color: white;
    padding: 12px;
    border-radius: 8px;
    width: 100%;
    margin-bottom: 15px;
    font-family: var(--font-main);
    font-size: 1.1rem;
    box-sizing: border-box;
    transition: box-shadow 0.3s ease;
}

input:focus {
    outline: none;
    box-shadow: 0 0 10px var(--neon-blue);
}

/* Buttons */
.btn {
    background: transparent;
    border: 2px solid var(--neon-blue);
    color: var(--neon-blue);
    padding: 10px 20px;
    font-size: 1.2rem;
    text-transform: uppercase;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    display: inline-block;
}

.btn:hover {
    background: var(--neon-blue);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--neon-blue);
}

.btn-pink {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
}

.btn-pink:hover {
    background: var(--neon-pink);
    box-shadow: 0 0 20px var(--neon-pink);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 0 8px rgba(0, 243, 255, 0.5));
    transition: filter 0.3s ease;
}

.logo img:hover {
    filter: drop-shadow(0 0 12px rgba(0, 243, 255, 0.8)) drop-shadow(0 0 20px rgba(188, 19, 254, 0.5));
}

/* Large logo for login/register pages */
.logo-large img {
    height: 80px;
}

/* Text fallback for logo */
.logo-text {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(45deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Game Grid */
.game-grid {
    display: grid;
    grid-template-columns: 30px repeat(10, 1fr);
    grid-template-rows: 30px repeat(10, 1fr);
    gap: 2px;
    margin-top: 0;
    max-width: 800px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

.cell {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.8rem;
    position: relative;
    overflow: visible; /* Changed from hidden to allow winner badges to show */
}

.cell:hover:not(.taken):not(.header) {
    background: rgba(0, 243, 255, 0.2);
    box-shadow: inset 0 0 10px var(--neon-blue);
}

.cell.header {
    aspect-ratio: auto; /* Override square aspect ratio for header cells */
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--neon-pink);
    background: rgba(0,0,0,0.6);
    cursor: default;
    text-shadow: 0 0 8px var(--neon-pink), 0 0 15px rgba(255, 0, 128, 0.5);
    letter-spacing: 1px;
}

.cell.taken {
    background: rgba(188, 19, 254, 0.2);
    border-color: var(--neon-pink);
    color: white;
    cursor: not-allowed;
}

.cell.mine {
    background: rgba(10, 255, 0, 0.2);
    border-color: var(--neon-green);
    box-shadow: 0 0 10px var(--neon-green);
}

/* Animation for selection */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

.cell.selected {
    animation: pulse 0.3s ease;
}

/* ===== GLOBAL MOBILE RESPONSIVENESS ===== */

/* Tablet (under 768px) */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }

    .game-grid {
        font-size: 0.6rem;
        grid-template-columns: 25px repeat(10, 1fr);
        grid-template-rows: 25px repeat(10, 1fr);
        gap: 1px;
        max-width: 100%;
    }

    .cell {
        font-size: 0.55rem;
    }

    .cell.header {
        font-size: 0.9rem;
    }

    .container {
        padding: 15px;
    }

    .glass-panel {
        padding: 1.2rem;
        border-radius: 12px;
    }

    h2 {
        font-size: 1.4rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .btn {
        padding: 10px 16px;
        font-size: 0.95rem;
    }
}

/* Mobile (under 600px) */
@media (max-width: 599px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
        margin-bottom: 20px;
        text-align: center;
    }

    .navbar > div {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
        align-items: center;
    }

    .navbar .btn {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .logo img {
        height: 32px;
    }

    .logo-large img {
        height: 60px;
    }

    .container {
        padding: 10px;
    }

    .glass-panel {
        padding: 1rem;
    }

    .game-grid {
        grid-template-columns: 22px repeat(10, 1fr);
        grid-template-rows: 22px repeat(10, 1fr);
        gap: 1px;
        margin-top: 0;
    }

    .cell {
        font-size: 0.5rem;
    }

    .cell.header {
        font-size: 0.75rem;
    }
}

/* Small mobile (under 480px) */
@media (max-width: 480px) {
    .navbar .btn {
        padding: 7px 12px;
        font-size: 0.8rem;
    }

    .logo img {
        height: 28px;
    }

    .logo-large img {
        height: 50px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    h3 {
        font-size: 1rem;
    }

    .glass-panel {
        padding: 0.9rem;
    }

    .game-grid {
        grid-template-columns: 18px repeat(10, 1fr);
        grid-template-rows: 18px repeat(10, 1fr);
        gap: 1px;
    }

    .cell {
        font-size: 0.45rem;
    }

    .cell.header {
        font-size: 0.65rem;
    }

    .btn {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
}

/* ===== SITE FOOTER ===== */
.site-footer {
    margin-top: auto;
    padding: 40px 20px 30px;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.4) 100%);
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), var(--neon-pink), transparent);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo img {
    height: 36px;
    width: auto;
    opacity: 0.7;
    filter: grayscale(30%);
    transition: all 0.3s ease;
}

.footer-logo img:hover {
    opacity: 1;
    filter: grayscale(0%) drop-shadow(0 0 10px rgba(0, 243, 255, 0.5));
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 12px;
    color: rgba(255,255,255,0.4);
    font-size: 0.75rem;
    line-height: 1.6;
}

.footer-copyright {
    font-weight: 500;
    color: rgba(255,255,255,0.5);
}

.footer-patent {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.35);
    max-width: 600px;
    margin: 0 auto;
    padding: 12px 16px;
    background: rgba(255,255,255,0.02);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.04);
}

.footer-patent strong {
    color: rgba(255,255,255,0.5);
    font-weight: 600;
}

.footer-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    margin: 16px auto;
    border-radius: 1px;
    opacity: 0.5;
}

.footer-tagline {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
}

@media (max-width: 600px) {
    .site-footer {
        padding: 30px 15px 25px;
    }

    .footer-patent {
        font-size: 0.65rem;
        padding: 10px 12px;
    }

    .footer-logo img {
        height: 30px;
    }
}