/* ==========================================
   RESOURCE TYCOON - Main Stylesheet
   Industrial Tycoon Theme
   ========================================== */

/* CSS Variables */
:root {
    /* Colors - Industrial Theme */
    --bg-primary: #0a0e14;
    --bg-secondary: #111923;
    --bg-tertiary: #1a2332;
    --bg-card: #151d29;
    --bg-hover: #1e2a3a;
    
    --accent-primary: #f59e0b;     /* Gold/Amber */
    --accent-secondary: #22c55e;   /* Green */
    --accent-danger: #ef4444;      /* Red */
    --accent-info: #3b82f6;        /* Blue */
    --accent-purple: #a855f7;      /* Purple */
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: #2d3a4d;
    --border-light: #3d4a5d;
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-green: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-dark: linear-gradient(180deg, #111923 0%, #0a0e14 100%);
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    
    /* Sizing */
    --header-height: 70px;
    --sidebar-width: 280px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, rgba(17, 25, 35, 0.9) 0%, rgba(10, 14, 20, 1) 100%);
    pointer-events: none;
    z-index: -1;
}

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

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

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

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

/* ==========================================
   SCREENS
   ========================================== */

.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: flex;
}

/* ==========================================
   LOGIN SCREEN
   ========================================== */

#login-screen {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    padding: 2rem;
}

.login-container {
    text-align: center;
    max-width: 450px;
    width: 100%;
}

.logo-container {
    margin-bottom: 3rem;
}

.game-logo {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.logo-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.logo-text {
    display: block;
    color: var(--text-primary);
}

.logo-text.accent {
    color: var(--accent-primary);
    text-shadow: 0 0 30px rgba(245, 158, 11, 0.5);
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.login-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-group input {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
    font-family: var(--font-body);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-align: center;
    transition: var(--transition-normal);
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.player-count {
    color: var(--text-muted);
    font-size: 0.9rem;
}

#online-count {
    color: var(--accent-secondary);
    font-weight: 600;
}

.login-features {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feature-icon {
    font-size: 2rem;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-gold);
    color: #000;
    box-shadow: var(--shadow-md), 0 0 20px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(245, 158, 11, 0.5);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn-success {
    background: var(--gradient-green);
    color: white;
    box-shadow: var(--shadow-md), 0 0 15px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 25px rgba(34, 197, 94, 0.5);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

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

.icon-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.icon-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* ==========================================
   GAME SCREEN LAYOUT
   ========================================== */

#game-screen {
    flex-direction: column;
    height: 100vh;
}

/* Top Bar */
.top-bar {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.player-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-gold);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.player-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.player-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
}

.level-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.level-badge {
    background: var(--accent-primary);
    color: #000;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
}

.xp-bar-container {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.xp-bar {
    width: 100px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.xp-progress {
    height: 100%;
    background: var(--gradient-gold);
    transition: width 0.3s ease;
}

.xp-progress.max-level {
    background: linear-gradient(90deg, #ffd700, #ff8c00, #ffd700);
    background-size: 200% 100%;
    animation: maxLevelShine 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
}

@keyframes maxLevelShine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.xp-tracker {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-family: var(--font-display);
    cursor: help;
    white-space: nowrap;
}

.xp-tracker:hover {
    color: var(--accent-primary);
}

.resource-bar {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.currency {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.currency-icon {
    font-size: 1.3rem;
}

.currency-amount {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.eco-points {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-secondary);
}

.pollution-meter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pollution-bar {
    width: 80px;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.pollution-fill {
    height: 100%;
    background: linear-gradient(90deg, #22c55e 0%, #f59e0b 50%, #ef4444 100%);
    transition: width 0.3s ease;
}

.top-actions {
    display: flex;
    gap: 0.75rem;
}

/* Event Banner */
.event-banner {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: #000;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-weight: 600;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.event-banner.hidden {
    display: none;
}

/* Main Game Area */
.game-main {
    flex: 1;
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr var(--sidebar-width);
    gap: 1.5rem;
    padding: 1.5rem;
    overflow: hidden;
    height: calc(100vh - var(--header-height));
}

/* Sidebars */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
}

/* Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

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

/* Resources Panel */
.resources-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.resource-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.9rem;
}

.resource-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.resource-name {
    color: var(--text-secondary);
}

.resource-rate {
    font-size: 0.75rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: var(--font-display);
}

.resource-rate.rate-positive {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-secondary);
}

.resource-rate.rate-negative {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.resource-amount {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--accent-primary);
}

/* Gather Panel */
.gather-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gather-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.gather-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}

.gather-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.gather-btn .cooldown {
    font-size: 0.8rem;
    color: var(--accent-primary);
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--gradient-gold);
    color: #000;
}

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

/* Tab Content */
.tab-content {
    flex: 1;
    overflow-y: auto;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 1.5rem 0 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Buildings */
.buildings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.building-filters {
    display: flex;
    gap: 0.5rem;
}

.filter-btn {
    padding: 0.4rem 0.8rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
}

.buildings-owned {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.buildings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.building-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    transition: var(--transition-normal);
}

.building-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.building-card.owned {
    border-color: var(--accent-secondary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(34, 197, 94, 0.1) 100%);
}

.building-card.locked {
    opacity: 0.5;
}

.building-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.building-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.building-info h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.building-tier {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.building-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.building-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
}

.stat-badge {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

.stat-badge.produces {
    color: var(--accent-secondary);
}

.stat-badge.consumes {
    color: var(--accent-danger);
}

.building-cost {
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.building-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.building-buy-controls {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.buy-amount-btns {
    display: flex;
    gap: 0.25rem;
}

.btn-tiny {
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    border-radius: 4px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-display);
}

.btn-tiny:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.btn-tiny.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #000;
    font-weight: 600;
}

/* Recipes Grid */
.recipes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.recipe-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
}

.recipe-card.locked {
    opacity: 0.5;
}

.recipe-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.recipe-header h4 {
    font-family: var(--font-display);
    font-size: 1rem;
}

.recipe-time {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.recipe-io {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.recipe-inputs, .recipe-outputs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.recipe-arrow {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.io-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Active Craft */
.active-craft {
    background: var(--bg-card);
    border: 1px solid var(--accent-primary);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.active-craft.hidden {
    display: none;
}

.craft-progress-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.craft-progress-bar {
    flex: 1;
    height: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    overflow: hidden;
}

.craft-progress-fill {
    height: 100%;
    background: var(--gradient-gold);
    transition: width 0.1s linear;
}

/* Market */
.market-header {
    margin-bottom: 1rem;
}

.market-info {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.market-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
}

.market-item-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.market-item-icon {
    font-size: 1.5rem;
}

.market-item-name {
    font-family: var(--font-display);
    font-size: 0.95rem;
}

.market-prices {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.price-buy {
    color: var(--accent-danger);
}

.price-sell {
    color: var(--accent-secondary);
}

.market-trend {
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}

.trend-up {
    color: var(--accent-secondary);
}

.trend-down {
    color: var(--accent-danger);
}

.trend-stable {
    color: var(--text-muted);
}

.market-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.market-actions input {
    width: 60px;
    padding: 0.4rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    text-align: center;
}

.market-sell-all-container {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(16, 163, 74, 0.05) 100%);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 12px;
    margin-bottom: 1rem;
}

.sell-all-btn {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--gradient-green);
    border: none;
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { box-shadow: 0 0 20px 5px rgba(34, 197, 94, 0.2); }
}

.buy-cost-preview {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 600;
    min-width: 80px;
}

.buy-cost-preview.cannot-afford {
    color: var(--accent-danger);
}

/* Auction */
.auction-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.auctions-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auction-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
}

.auction-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.auction-item-icon {
    font-size: 2rem;
}

.auction-details {
    flex: 1;
}

.auction-seller {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.auction-price {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--accent-primary);
}

.auction-bidder {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.auction-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.auction-time {
    font-size: 0.85rem;
    color: var(--accent-danger);
}

.auction-bid-input {
    display: flex;
    gap: 0.5rem;
}

.auction-bid-input input {
    width: 80px;
    padding: 0.4rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
}

/* Players List */
.players-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.player-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.player-card-avatar {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.player-card-info {
    flex: 1;
}

.player-card-name {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.player-card-level {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.player-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-danger);
}

.player-status.online {
    background: var(--accent-secondary);
}

/* Right Sidebar Stats */
.production-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.stat-value {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--accent-primary);
}

/* Mini Leaderboard */
.mini-rankings {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mini-rank {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.9rem;
}

.rank-position {
    width: 24px;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
}

.rank-position.gold {
    background: var(--gradient-gold);
    color: #000;
}

.rank-position.silver {
    background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
    color: #000;
}

.rank-position.bronze {
    background: linear-gradient(135deg, #d97706 0%, #92400e 100%);
    color: #fff;
}

.rank-name {
    flex: 1;
}

.rank-value {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Notifications */
.notifications-list {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.notification {
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.85rem;
    border-left: 3px solid var(--accent-info);
}

.notification.success {
    border-left-color: var(--accent-secondary);
}

.notification.warning {
    border-left-color: var(--accent-primary);
}

.notification.error {
    border-left-color: var(--accent-danger);
}

/* ==========================================
   MODALS
   ========================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-large {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

/* Leaderboard Modal */
.leaderboard-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.lb-tab {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    cursor: pointer;
    transition: var(--transition-normal);
}

.lb-tab:hover, .lb-tab.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
}

.leaderboard-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.leaderboard-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.leaderboard-row.highlight {
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.2) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--accent-primary);
}

/* Challenges Modal */
.challenges-section {
    margin-bottom: 1.5rem;
}

.challenges-section h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.challenges-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.challenge-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.challenge-card.completed {
    border-color: var(--accent-secondary);
}

.challenge-card.claimed {
    opacity: 0.6;
}

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.challenge-name {
    font-weight: 600;
}

.challenge-reward {
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.challenge-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.challenge-progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.challenge-progress-fill {
    height: 100%;
    background: var(--gradient-gold);
}

.challenge-progress-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

/* Form Groups */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Trade Modal */
.trade-columns {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.trade-column h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.trade-arrow {
    display: flex;
    align-items: center;
    font-size: 2rem;
    color: var(--accent-primary);
}

.trade-items {
    min-height: 100px;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.trade-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.trade-item .remove {
    cursor: pointer;
    color: var(--accent-danger);
    margin-left: 0.25rem;
}

.trade-add {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.trade-add select,
.trade-add input {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
}

.trade-money {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trade-money input {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
}

/* Incoming Trade */
.incoming-trade-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.trade-side h4 {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.trade-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */

.toast-container {
    position: fixed;
    top: calc(var(--header-height) + 1rem);
    right: 1rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    min-width: 280px;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 4px solid var(--accent-secondary);
}

.toast.error {
    border-left: 4px solid var(--accent-danger);
}

.toast.warning {
    border-left: 4px solid var(--accent-primary);
}

.toast.info {
    border-left: 4px solid var(--accent-info);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-message {
    flex: 1;
}

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

@media (max-width: 1200px) {
    :root {
        --sidebar-width: 240px;
    }
}

@media (max-width: 1024px) {
    .game-main {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .top-bar {
        flex-wrap: wrap;
        height: auto;
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    .resource-bar {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .tab-nav {
        overflow-x: auto;
    }
    
    .tab-btn span:not(.tab-icon) {
        display: none;
    }
    
    .buildings-grid {
        grid-template-columns: 1fr;
    }
    
    .login-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .trade-columns {
        grid-template-columns: 1fr;
    }
    
    .trade-arrow {
        transform: rotate(90deg);
        justify-content: center;
    }
}

/* ==========================================
   AUTH TABS (Login/Register)
   ========================================== */

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.auth-tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.auth-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.auth-tab.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
}

.auth-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--accent-danger);
    color: var(--accent-danger);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.auth-error.hidden {
    display: none;
}

.auth-hint {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* ==========================================
   CHAT PANEL
   ========================================== */

.chat-panel {
    display: flex;
    flex-direction: column;
    max-height: 300px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    min-height: 150px;
    max-height: 200px;
}

.chat-message {
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.85rem;
}

.chat-message-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.chat-username {
    font-weight: 600;
    color: var(--accent-primary);
}

.chat-level {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

.chat-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-left: auto;
}

.chat-text {
    color: var(--text-secondary);
    word-break: break-word;
}

.chat-input-area {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.chat-input-area input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ==========================================
   HELP BUTTON & TUTORIAL
   ========================================== */

.help-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg), 0 0 20px rgba(245, 158, 11, 0.4);
    transition: var(--transition-normal);
    z-index: 100;
}

.help-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(245, 158, 11, 0.6);
}

.tutorial-steps {
    min-height: 300px;
}

.tutorial-step {
    display: none;
}

.tutorial-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tutorial-step h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--accent-primary);
}

.tutorial-step > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.tutorial-content {
    background: var(--bg-secondary);
    padding: 1.25rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.tutorial-content h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.tutorial-content ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tutorial-content li {
    color: var(--text-secondary);
    line-height: 1.5;
}

.tutorial-content li strong {
    color: var(--text-primary);
}

.tutorial-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.tutorial-progress {
    color: var(--text-muted);
    font-family: var(--font-display);
}

.tutorial-footer {
    margin-top: 1.5rem;
    text-align: center;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

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

/* ==========================================
   BUILDING CARD IMPROVEMENTS
   ========================================== */

.building-level {
    font-size: 0.85rem;
    color: var(--accent-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.building-locked {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    text-align: center;
}

.own-auction {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.85rem;
}

.no-resources, .no-buildings, .no-auctions, .no-players {
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

/* Insufficient resources indicator */
.io-item.insufficient {
    color: var(--accent-danger);
    opacity: 0.7;
}

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

.settings-body {
    max-height: 70vh;
    overflow-y: auto;
}

.settings-section {
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.settings-section:last-of-type {
    margin-bottom: 0;
}

.settings-section-title {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.settings-account-info {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.account-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
}

.account-row:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

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

.account-value {
    color: var(--text-primary);
    font-family: var(--font-display);
}

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.settings-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.settings-row label:first-child {
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* Volume Control */
.volume-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.volume-control input[type="range"] {
    width: 120px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
}

.volume-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
    transition: var(--transition-fast);
}

.volume-control input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.6);
}

.volume-control input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

#volume-value {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--accent-primary);
    min-width: 40px;
    text-align: right;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    transition: var(--transition-normal);
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
    background-color: #000;
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 5px rgba(245, 158, 11, 0.5);
}

/* Settings Buttons */
.settings-section .btn {
    margin-top: 0.75rem;
}

.settings-section .btn:first-of-type {
    margin-top: 0.5rem;
}

.settings-footer {
    text-align: center;
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.version-info {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Body class for compact mode */
body.compact-mode .panel {
    padding: 0.75rem;
}

body.compact-mode .resource-item,
body.compact-mode .gather-btn {
    padding: 0.4rem 0.6rem;
}

body.compact-mode .building-card {
    padding: 0.75rem;
}

/* Body class for no animations */
body.no-animations * {
    animation: none !important;
    transition: none !important;
}