/* ======================================
   CHICKEN ROAD — Design System & Styles
   ====================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --bg-primary: #0a0e27;
    --bg-secondary: #131740;
    --bg-tertiary: #1a1f4e;
    --surface: rgba(25, 30, 75, 0.85);
    --surface-hover: rgba(35, 42, 95, 0.9);
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);

    --text-primary: #ffffff;
    --text-secondary: #a0a8d0;
    --text-muted: #6b71a0;

    --accent-gold: #fbbf24;
    --accent-gold-dark: #d4971a;
    --accent-green: #22c55e;
    --accent-green-dark: #16a34a;
    --accent-red: #ef4444;
    --accent-red-dark: #dc2626;
    --accent-orange: #f97316;
    --accent-purple: #a855f7;
    --accent-blue: #3b82f6;

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #fbbf24, #f59e0b);
    --gradient-green: linear-gradient(135deg, #22c55e, #16a34a);
    --gradient-red: linear-gradient(135deg, #ef4444, #dc2626);
    --gradient-purple: linear-gradient(135deg, #a855f7, #7c3aed);
    --gradient-bg: linear-gradient(180deg, #0a0e27 0%, #131740 50%, #1a1054 100%);

    /* Spacing */
    --gap-xs: 4px;
    --gap-sm: 8px;
    --gap-md: 12px;
    --gap-lg: 16px;
    --gap-xl: 24px;

    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-glow-gold: 0 0 20px rgba(251, 191, 36, 0.3);
    --shadow-glow-green: 0 0 20px rgba(34, 197, 94, 0.3);
    --shadow-glow-red: 0 0 20px rgba(239, 68, 68, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-family: 'Outfit', system-ui, -apple-system, sans-serif;
    --font-weight-regular: 400;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--gradient-bg);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated bg stars */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 30% 65%, rgba(255, 255, 255, 0.2), transparent),
        radial-gradient(1.5px 1.5px at 55% 15%, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(1px 1px at 70% 80%, rgba(255, 255, 255, 0.2), transparent),
        radial-gradient(1px 1px at 85% 35%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1.5px 1.5px at 20% 90%, rgba(255, 255, 255, 0.15), transparent),
        radial-gradient(1px 1px at 45% 45%, rgba(255, 255, 255, 0.25), transparent),
        radial-gradient(1px 1px at 90% 60%, rgba(255, 255, 255, 0.2), transparent);
    pointer-events: none;
    z-index: 0;
    animation: twinkle 8s ease-in-out infinite alternate;
}

@keyframes twinkle {
    0% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

#app {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Header --- */
#game-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--gap-lg) var(--gap-xl);
    background: var(--surface);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 2px 8px rgba(251, 191, 36, 0.5));
    animation: chickenBob 2s ease-in-out infinite;
}

@keyframes chickenBob {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-4px);
    }
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-black);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo .accent {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.balance-display {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--gap-sm) var(--gap-lg);
}

.balance-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.balance-amount {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-gold);
    min-width: 80px;
    text-align: right;
}

.currency {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* --- Main Layout --- */
#game-container {
    display: flex;
    flex: 1;
    gap: var(--gap-lg);
    padding: var(--gap-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* --- Control Panel --- */
#control-panel {
    width: 280px;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
}

.panel-section {
    background: var(--surface);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--gap-lg);
}

.panel-label {
    display: block;
    font-size: 0.7rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--gap-md);
}

/* Difficulty Selector */
.difficulty-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-sm);
}

.diff-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--gap-sm) var(--gap-xs);
    background: var(--glass);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    font-family: var(--font-family);
}

.diff-btn:hover {
    background: var(--surface-hover);
    border-color: var(--glass-border);
    transform: translateY(-1px);
}

.diff-btn.active {
    border-color: var(--accent-gold);
    background: rgba(251, 191, 36, 0.1);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-gold);
}

.diff-icon {
    font-size: 1.2rem;
}

.diff-name {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
}

.diff-lanes {
    font-size: 0.6rem;
    color: var(--text-muted);
}

/* Bet Input */
.bet-input-group {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    margin-bottom: var(--gap-sm);
}

.bet-adjust-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    justify-content: center;
}

.bet-adjust-btn:hover {
    background: var(--surface-hover);
    border-color: var(--accent-gold);
}

#bet-amount {
    flex: 1;
    height: 36px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--accent-gold);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    outline: none;
    transition: border-color var(--transition-fast);
    -moz-appearance: textfield;
}

#bet-amount::-webkit-inner-spin-button,
#bet-amount::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

#bet-amount:focus {
    border-color: var(--accent-gold);
}

.bet-presets {
    display: flex;
    gap: var(--gap-xs);
}

.preset-btn {
    flex: 1;
    padding: 4px;
    border-radius: var(--radius-sm);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: 0.7rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    background: var(--surface-hover);
    color: var(--accent-gold);
}

/* Action Buttons */
.action-section {
    display: flex;
    flex-direction: column;
    gap: var(--gap-sm);
}

.action-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-weight-black);
    letter-spacing: 2px;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap-sm);
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.play-btn {
    background: var(--gradient-green);
    color: white;
    box-shadow: var(--shadow-glow-green);
}

.play-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.5);
}

.play-btn:active:not(:disabled) {
    transform: translateY(0);
}

.cashout-btn {
    background: var(--gradient-gold);
    color: #1a1a2e;
    box-shadow: var(--shadow-glow-gold);
}

.cashout-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(251, 191, 36, 0.5);
}

.action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Shimmer effect on active buttons */
.action-btn:not(:disabled)::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 40%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: skewX(-20deg);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        left: -60%;
    }

    50% {
        left: 120%;
    }

    100% {
        left: 120%;
    }
}

.btn-icon {
    font-size: 1.1rem;
}

/* Round Info */
.round-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--gap-sm) 0;
}

.round-stat+.round-stat {
    border-top: 1px solid var(--glass-border);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1.1rem;
    font-weight: var(--font-weight-black);
}

.multiplier-glow {
    color: var(--accent-gold);
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
}

.win-value {
    color: var(--accent-green);
}

/* Game History */
.history-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap-xs);
    max-height: 120px;
    overflow-y: auto;
}

.history-container::-webkit-scrollbar {
    width: 4px;
}

.history-container::-webkit-scrollbar-track {
    background: transparent;
}

.history-container::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 2px;
}

.history-empty {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

.history-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: var(--font-weight-bold);
    animation: fadeInScale 0.3s ease;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.7);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.history-badge.win {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.history-badge.lose {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* --- Game Area --- */
#game-area {
    flex: 1;
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    min-height: 500px;
}

#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
}

/* Overlay */
.overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10;
    transition: opacity var(--transition-slow);
}

.overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    text-align: center;
    animation: overlayPulse 2s ease-in-out infinite;
}

@keyframes overlayPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.03);
    }
}

.overlay-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--gap-lg);
    filter: drop-shadow(0 4px 20px rgba(251, 191, 36, 0.4));
}

.overlay-content h2 {
    font-size: 1.8rem;
    font-weight: var(--font-weight-black);
    margin-bottom: var(--gap-sm);
    letter-spacing: 1px;
}

.overlay-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Win overlay styling */
.overlay-content.win h2 {
    color: var(--accent-green);
    text-shadow: 0 0 20px rgba(34, 197, 94, 0.5);
}

.overlay-content.lose h2 {
    color: var(--accent-red);
    text-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    #game-container {
        flex-direction: column-reverse;
    }

    #control-panel {
        width: 100%;
        min-width: unset;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .panel-section {
        flex: 1;
        min-width: 200px;
    }

    .action-section {
        flex-direction: row;
    }

    #game-area {
        min-height: 400px;
    }
}

@media (max-width: 600px) {
    #game-header {
        flex-direction: column;
        gap: var(--gap-md);
        padding: var(--gap-md);
    }

    #game-container {
        padding: var(--gap-sm);
    }

    #control-panel {
        flex-direction: column;
        flex-wrap: nowrap;
    }

    .action-section {
        order: -1;
        flex-direction: row;
    }

    .action-section .action-btn {
        flex: 1;
    }

    .difficulty-grid {
        grid-template-columns: 1fr 1fr;
    }

    .panel-section {
        padding: var(--gap-md);
    }

    #game-area {
        min-height: 350px;
    }
}

/* --- Utility animations --- */
@keyframes coinBurst {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }

    100% {
        transform: translateY(-80px) scale(0.5);
        opacity: 0;
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-8px);
    }

    40% {
        transform: translateX(8px);
    }

    60% {
        transform: translateX(-4px);
    }

    80% {
        transform: translateX(4px);
    }
}

.shake {
    animation: shake 0.5s ease-in-out;
}