/* ==========================================
   OMOK-LAB - Premium Dark Mode Styles
   ========================================== */

/* CSS Variables - Design System */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1a1f35;
    --bg-glass: rgba(17, 24, 39, 0.7);

    /* Accent Colors */
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;

    /* Text Colors */
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;

    /* Board Colors */
    --board-bg: #d4a574;
    --board-line: #8b6f47;
    --board-star: #6b5635;
    --stone-black: #1a1a1a;
    --stone-white: #f5f5f5;
    --stone-shadow: rgba(0, 0, 0, 0.3);

    /* Effects */
    --glow-primary: 0 0 20px rgba(99, 102, 241, 0.5);
    --glow-secondary: 0 0 15px rgba(139, 92, 246, 0.4);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ==========================================
   GLOBAL STYLES
   ========================================== */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.app-container {
    position: relative;
    z-index: 1;
    max-width: 1920px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* ==========================================
   HEADER
   ========================================== */

.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.logo-icon {
    font-size: 2.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

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

    50% {
        transform: scale(1.1);
    }
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

/* ==========================================
   MAIN LAYOUT
   ========================================== */

.main-content {
    display: grid;
    grid-template-columns: 320px 1fr 320px;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 1400px) {
    .main-content {
        grid-template-columns: 280px 1fr 280px;
    }
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .sidebar-left {
        order: 2;
    }

    .board-container {
        order: 1;
    }

    .sidebar-right {
        order: 3;
    }
}

/* ==========================================
   PANELS
   ========================================== */

.panel {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.panel:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.panel-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.panel-title::before {
    content: '';
    width: 4px;
    height: 1.5rem;
    background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

/* ==========================================
   GAME INFO
   ========================================== */

.game-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.info-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.info-value {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
}

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

.stone-indicator {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.stone-indicator.black {
    background: var(--stone-black);
    border: 2px solid #333;
}

.stone-indicator.white {
    background: var(--stone-white);
    border: 2px solid #ddd;
}

.game-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--accent-primary);
}

.status-message {
    color: var(--text-primary);
    font-weight: 500;
}

/* ==========================================
   CONTROLS
   ========================================== */

.controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: 'Inter', sans-serif;
}

.btn span {
    font-size: 1.2rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-primary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==========================================
   SETTINGS
   ========================================== */

.settings {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.setting-item label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.select-input {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.select-input:hover {
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.15);
}

.select-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Dropdown options - force visibility */
.select-input option {
    background-color: #ffffff !important;
    color: #000000 !important;
    padding: 8px;
    font-weight: 500;
}

.select-input option:hover {
    background-color: #e0e0e0 !important;
}

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}


/* ==========================================
   GAME BOARD
   ========================================== */

.board-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.board-wrapper {
    position: relative;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

#gameBoard {
    display: block;
    border-radius: var(--radius-sm);
    cursor: crosshair;
    box-shadow: var(--shadow-md);
}

.board-overlay {
    position: absolute;
    top: var(--spacing-xl);
    left: var(--spacing-xl);
    pointer-events: none;
}

/* ==========================================
   MOVE HISTORY
   ========================================== */

.move-history {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.move-history::-webkit-scrollbar {
    width: 8px;
}

.move-history::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.move-history::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

.move-item {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.move-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.move-number {
    font-weight: 600;
    color: var(--accent-primary);
}

.move-coord {
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

.move-player {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.move-stone {
    width: 16px;
    height: 16px;
    border-radius: 50%;
}

.move-stone.black {
    background: var(--stone-black);
}

.move-stone.white {
    background: var(--stone-white);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-lg);
    font-style: italic;
}

/* ==========================================
   AI ANALYSIS
   ========================================== */

.ai-analysis {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.analysis-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.analysis-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.analysis-value {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 1rem;
}

.suggested-move {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.suggested-move.active {
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
    }

    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
    }
}

/* ==========================================
   RULES INFO
   ========================================== */

.rules-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.rule-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-danger);
}

.rule-icon {
    font-size: 1.5rem;
}

.rule-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.rule-text p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.footer p {
    margin: var(--spacing-xs) 0;
}

.footer-tech {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==========================================
   LOADING OVERLAY
   ========================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 26, 0.9);
    backdrop-filter: blur(5px);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: var(--spacing-lg);
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(99, 102, 241, 0.2);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-md);
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .board-wrapper {
        padding: var(--spacing-md);
    }

    #gameBoard {
        width: 100%;
        height: auto;
    }
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.panel {
    animation: fadeIn 0.5s ease-out;
}

/* Stagger animation for panels */
.sidebar-left .panel:nth-child(1) {
    animation-delay: 0.1s;
}

.sidebar-left .panel:nth-child(2) {
    animation-delay: 0.2s;
}

.sidebar-left .panel:nth-child(3) {
    animation-delay: 0.3s;
}

.sidebar-right .panel:nth-child(1) {
    animation-delay: 0.1s;
}

.sidebar-right .panel:nth-child(2) {
    animation-delay: 0.2s;
}

.sidebar-right .panel:nth-child(3) {
    animation-delay: 0.3s;
}