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

html,
body {
    height: 100%;
    width: 100%;
    touch-action: none;
    /* 🔴 CRITICAL: Stops pull-to-refresh and browser swiping */
    user-select: none;
    /* 🔴 Prevents text from highlighting while swiping */
    overflow: hidden;
    /* 🔴 Prevents any accidental page scrolling */
}

:root {
    /* 🔴 UPDATED: Saare Background Colors */
    --bg-primary-color: #0c0c0c;
    --bg-secondary-color: #1a1a1a;
    /* Cards aur info boxes ke liye */
    --bg-tertiary-color: #111111;
    /* Board ke background ke liye */
    --bg-fill-color: #0aaa47;
    --bg-success-btn: #28a745;
    --bg-success-btn-hover: #218838;
    --bg-level-up-card: rgba(40, 167, 69, 0.95);

    /* 🔴 UPDATED: Saare Text Colors */
    --text-primary-color: #f0f0f0;
    --text-secondary-color: #aaaaaa;
    /* Labels ke liye */
    --text-light-color: #ffffff;
    --text-danger-color: #ff4c4c;
    /* Game Over text ke liye */
    --text-gold-color: #FFDF00;
    /* Level Up title ke liye */

    /* Spacing Variables */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 40px;
    --space-3xl: 48px;

    /* Border Color */
    --border-primary-color: #333333;

    /* Border Radius */
    --border-radius-xs: 4px;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    --border-radius-2xl: 24px;

    /* 🔴 NAYA: Box Shadows */
    --shadow-heavy: 0 10px 40px rgba(0, 0, 0, 0.9);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.6);
}

html {
    background-color: var(--bg-primary-color);
    color: var(--text-primary-color);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

main,
section {
    width: 100%;
    height: 100%;
}

main {
    position: relative;
}

section {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

/* --- INFOS & SCOREBOARD --- */
section .infos {
    width: 100%;
    display: flex;
    justify-content: space-between;
}

.info {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border-primary-color);
    border-radius: var(--border-radius-sm);
    font-size: 1.2rem;
    font-weight: bold;
    display: flex;
    gap: 10px;
    align-items: center;
    background-color: var(--bg-secondary-color);
}

.info .label {
    color: var(--text-secondary-color);
}

.info .value {
    color: var(--bg-fill-color);
}

/* --- GAME BOARD --- */
.board {
    border: 4px solid var(--border-primary-color);
    margin: 0 auto;
    background-color: var(--bg-tertiary-color);
    border-radius: var(--border-radius-sm);
    width: 100%;
    flex-grow: 1;
}

.block {
    width: 50px;
    height: 50px;
    border: 1px solid var(--border-primary-color);
}

.fill {
    background-color: var(--bg-fill-color);
    border-radius: 4px;
}

/* --- MODALS (GLASSMORPHISM UI) --- */
.hidden {
    display: none !important;
}

.modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(17, 17, 17, 0.65);
    /* Transparent Dark */
    backdrop-filter: blur(12px);
    /* The Glass Effect */
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    z-index: 10;
    min-width: 320px;
    color: var(--text-primary-color);
}

.modal h2 {
    font-size: 28px;
    margin-bottom: 5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Modern Button Styling */
.modal button {
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(135deg, var(--bg-success-btn), var(--bg-fill-color));
    color: var(--text-light-color);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    margin-top: var(--space-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(10, 170, 71, 0.3);
}

.modal button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 170, 71, 0.5);
}

/* Level Up specific tweaks */
#level-up-card {
    top: 25%;
    /* Slightly higher so it doesn't block the whole screen */
    background: rgba(40, 167, 69, 0.2);
    /* Tint of green */
    border: 1px solid rgba(40, 167, 69, 0.4);
}

/* ==========================================
   📱 MOBILE RESPONSIVENESS
   ========================================== */
@media (max-width: 600px) {
    section {
        padding: var(--space-sm);
        /* Shrinks padding to give the board more room */
        gap: var(--space-sm);
    }

    .info {
        font-size: 1rem;
        padding: var(--space-xs) var(--space-sm);
    }

    .modal {
        min-width: 280px;
        padding: var(--space-lg);
    }
}