/* ========================================
   Dungeon Runner - Dark Fantasy Theme
   ======================================== */

:root {
    /* Colors */
    --bg-dark: #0a0a0f;
    --bg-secondary: #141420;
    --bg-tertiary: #1a1a2e;
    --accent-primary: #ff6b35;
    --accent-secondary: #7b2cbf;
    --accent-success: #2ecc71;
    --accent-danger: #e74c3c;
    --accent-gold: #f1c40f;
    --text-primary: #ecf0f1;
    --text-muted: #7f8c8d;
    --border-color: #2c2c3e;
    
    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Lato', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

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

body {
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(123, 44, 191, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(255, 107, 53, 0.08) 0%, transparent 50%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(255, 255, 255, 0.01) 50px,
            rgba(255, 255, 255, 0.01) 51px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(255, 255, 255, 0.01) 50px,
            rgba(255, 255, 255, 0.01) 51px
        );
    pointer-events: none;
    z-index: -1;
}

#game-container {
    width: 100%;
    max-width: 800px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 
        0 0 40px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(123, 44, 191, 0.1);
    overflow: hidden;
}

/* ========================================
   Header
   ======================================== */

#game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-bottom: 2px solid var(--border-color);
}

#game-header h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--accent-primary);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
    letter-spacing: 2px;
}

#header-stats {
    display: flex;
    gap: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

#header-gold {
    color: var(--accent-gold);
}

/* ========================================
   Main Game Area
   ======================================== */

#game-main {
    position: relative;
    background: var(--bg-dark);
    border-bottom: 2px solid var(--border-color);
}

#game-canvas {
    display: block;
    margin: 0 auto;
    background: #0d0d12;
    image-rendering: pixelated;
}

#message-log {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(transparent, rgba(10, 10, 15, 0.95));
    padding: var(--spacing-sm) var(--spacing-md);
    overflow-y: auto;
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

.message {
    padding: 2px 0;
    opacity: 0.8;
}

.message.damage { color: var(--accent-danger); }
.message.heal { color: var(--accent-success); }
.message.gold { color: var(--accent-gold); }
.message.info { color: var(--text-muted); }
.message.combat { color: var(--accent-primary); }

/* ========================================
   Status Bar
   ======================================== */

#status-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
}

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

.stat-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--text-muted);
    width: 30px;
    text-transform: uppercase;
}

.stat-bar {
    width: 100px;
    height: 12px;
    background: var(--bg-dark);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.stat-bar > div {
    height: 100%;
    transition: width 0.3s ease;
    border-radius: 5px;
}

#hp-bar {
    background: linear-gradient(90deg, var(--accent-danger), #c0392b);
    box-shadow: 0 0 10px rgba(231, 76, 60, 0.5);
}

#mp-bar {
    background: linear-gradient(90deg, var(--accent-secondary), #5b2c7a);
    box-shadow: 0 0 10px rgba(123, 44, 191, 0.5);
}

#xp-bar {
    background: linear-gradient(90deg, var(--accent-primary), #d35400);
    box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.stat-info {
    margin-left: auto;
    display: flex;
    gap: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-gold);
}

#player-level {
    color: var(--accent-primary);
    font-weight: bold;
}

/* ========================================
   Action Bar
   ======================================== */

#action-bar {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    flex: 1;
    min-width: 100px;
    max-width: 140px;
    padding: var(--spacing-md) var(--spacing-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.action-btn:hover {
    background: var(--bg-dark);
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.3);
    transform: translateY(-2px);
}

.action-btn:active {
    transform: translateY(0);
}

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

#btn-attack:hover { border-color: var(--accent-danger); }
#btn-defend:hover { border-color: #3498db; }
#btn-skill:hover { border-color: var(--accent-secondary); }
#btn-item:hover { border-color: var(--accent-success); }
#btn-descend:hover { border-color: var(--accent-gold); }

/* ========================================
   Modals
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-xl);
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    text-align: center;
    box-shadow: 0 0 60px rgba(123, 44, 191, 0.2);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-content h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

.modal-content .subtitle {
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
}

/* Character Selection */
.class-cards {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.class-card {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.class-card:hover, .class-card:active {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
}

.class-card.selected {
    border-color: var(--accent-gold);
    background: rgba(241, 196, 15, 0.1);
    box-shadow: 0 0 30px rgba(241, 196, 15, 0.3);
}

.class-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.class-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.class-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.class-stats {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.class-stats div {
    margin: 4px 0;
}

/* Game Over */
.run-stats {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.run-stats p {
    font-size: 1.1rem;
    margin: var(--spacing-sm) 0;
    font-family: var(--font-mono);
}

.run-stats span {
    color: var(--accent-gold);
    font-weight: bold;
}

.restart-btn {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* Start Button */
.start-btn {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--accent-primary), #d35400);
    border-color: var(--accent-primary);
    opacity: 1;
    transition: all 0.3s ease;
}

.start-btn:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(255, 107, 53, 0.5);
}

.start-btn:disabled {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 600px) {
    #game-container {
        border-radius: 0;
        height: 100vh;
        max-width: 100%;
    }
    
    #game-canvas {
        width: 100%;
        height: auto;
    }
    
    #action-bar {
        padding: var(--spacing-sm);
    }
    
    .action-btn {
        min-width: 60px;
        font-size: 0.75rem;
        padding: var(--spacing-sm);
    }
    
    .stat-bar {
        width: 60px;
    }
    
    .class-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .class-card {
        max-width: 100%;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* ========================================
   Mobile D-Pad
   ======================================== */

#mobile-dpad {
    display: none;
    position: fixed;
    top: 80px;
    left: 10px;
    width: 120px;
    height: 120px;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 5px;
    z-index: 100;
}

.dpad-btn {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.dpad-btn:active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: scale(0.95);
}

.dpad-btn[data-dir="up"] { grid-column: 2; grid-row: 1; }
.dpad-btn[data-dir="left"] { grid-column: 1; grid-row: 2; }
.dpad-btn[data-dir="down"] { grid-column: 2; grid-row: 3; }
.dpad-btn[data-dir="right"] { grid-column: 3; grid-row: 2; }

@media (max-width: 768px), (pointer: coarse) {
    #mobile-dpad {
        display: grid;
    }
    
    #action-bar {
        padding-bottom: 180px;
    }
}