:root {
    --bg-dark: #0a0e17;
    --panel-bg: rgba(17, 20, 29, 0.85);
    --panel-border: rgba(0, 102, 255, 0.22);
    --primary-blue: #0066ff;
    --primary-blue-hover: #0052cc;
    --accent-orange: #ff5500;
    --accent-gold: #ffe600;
    --accent-purple: #a855f7;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --card-radius: 12px;
}

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

html, body {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(0, 102, 255, 0.14) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(255, 85, 0, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    display: flex;
    flex-direction: column;
}

/* Scrollbars */
.custom-scrollbar::-webkit-scrollbar { width: 4px; }
.custom-scrollbar::-webkit-scrollbar-track { background: rgba(10, 14, 23, 0.5); }
.custom-scrollbar::-webkit-scrollbar-thumb { background: rgba(0, 102, 255, 0.3); border-radius: 4px; }
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: var(--primary-blue); }

.app-container {
    max-width: 1380px;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    margin: 0 auto;
    padding: 6px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow: hidden;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border);
    border-radius: var(--card-radius);
    box-shadow: 0 6px 24px 0 rgba(0, 0, 0, 0.35);
    padding: 10px;
}

/* Top Navigation Header */
header.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 14px;
    background: rgba(17, 20, 29, 0.88);
    backdrop-filter: blur(20px);
    border: 1px solid var(--panel-border);
    border-radius: var(--card-radius);
}

.logo-group { display: flex; align-items: center; gap: 8px; }

.logo-icon {
    width: 30px; height: 30px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff;
    box-shadow: 0 0 12px rgba(0, 102, 255, 0.4);
}

.brand-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.15rem; font-weight: 800; letter-spacing: -0.5px;
}

.brand-title .tld { color: var(--accent-gold); }
.brand-subtitle { display: block; font-size: 0.58rem; color: var(--text-muted); font-weight: 700; letter-spacing: 0.8px; }
.header-right { display: flex; align-items: center; gap: 6px; }

/* Counter Badges */
.counter-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4px 8px; border-radius: 20px; font-size: 0.72rem;
    display: flex; align-items: center; gap: 4px;
}

.counter-badge.online { border-color: rgba(16, 185, 129, 0.3); color: var(--accent-green); }

.pulse-dot {
    width: 6px; height: 6px; background: var(--accent-green); border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green); animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Flag-Only Lang Selector with Subtle Neon Glow */
.lang-selector {
    display: flex;
    background: rgba(10, 14, 23, 0.8);
    padding: 2px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    gap: 2px;
}

.lang-btn {
    background: transparent;
    border: 1px solid transparent;
    padding: 4px 6px;
    border-radius: 6px;
    font-size: 1.05rem;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1;
}

.lang-btn.active {
    background: rgba(0, 102, 255, 0.28);
    border: 1px solid rgba(0, 102, 255, 0.6);
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.4);
    transform: scale(1.12);
}

.lang-btn:hover {
    background: rgba(0, 102, 255, 0.15);
    transform: scale(1.08);
}

/* Glassmorphism Circle Sound Button */
.glass-audio-btn {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.glass-audio-btn:hover { background: rgba(255, 255, 255, 0.16); transform: scale(1.08); }
.sound-emoji { font-size: 1rem; line-height: 1; }

/* Cyber Buttons */
.cyber-btn {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-hover) 100%);
    color: #ffffff; border: none; padding: 7px 12px;
    font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; font-size: 0.8rem;
    border-radius: 7px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    gap: 5px; transition: all 0.2s ease; text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.28);
}

.cyber-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0, 102, 255, 0.42); }
.cyber-btn.sm { padding: 4px 8px; font-size: 0.72rem; border-radius: 5px; }
.cyber-btn.lg { padding: 8px 16px; font-size: 0.88rem; border-radius: 8px; }
.cyber-btn.full-width { width: 100%; }
.cyber-btn.secondary { background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.12); color: var(--text-main); box-shadow: none; }
.cyber-btn.gold-btn { background: linear-gradient(135deg, var(--accent-gold) 0%, #d97706 100%); color: #0a0e17; box-shadow: 0 4px 12px rgba(255, 230, 0, 0.3); }
.cyber-btn.x-btn { background: #000000; border: 1px solid rgba(255, 255, 255, 0.25); color: #fff; }
.cyber-btn.pvp-btn { background: linear-gradient(135deg, var(--accent-purple) 0%, #7e22ce 100%); }

/* Top Champion Showcase Banner */
.top-leader-banner {
    background: linear-gradient(90deg, rgba(255, 230, 0, 0.1) 0%, rgba(0, 102, 255, 0.1) 100%);
    border: 1px solid rgba(255, 230, 0, 0.35); border-radius: var(--card-radius);
    padding: 5px 12px; display: flex; align-items: center; justify-content: space-between; gap: 8px;
}

.banner-badge { display: flex; align-items: center; gap: 4px; font-weight: 800; font-size: 0.72rem; color: var(--accent-gold); }
.banner-info { display: flex; align-items: center; gap: 6px; font-size: 0.78rem; }
.banner-name { font-weight: 800; color: #fff; }
.banner-msg { color: var(--text-muted); font-style: italic; }
.banner-action { display: flex; align-items: center; gap: 8px; }
.clicks-tag { font-size: 0.7rem; color: var(--accent-green); font-weight: 700; }

/* Main 3-Column Zero-Scroll Layout */
.main-layout {
    display: grid; grid-template-columns: 280px 1fr 280px; gap: 10px; flex: 1; min-height: 0;
}

.side-column { display: flex; flex-direction: column; gap: 8px; min-height: 0; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.header-left { display: flex; align-items: center; gap: 5px; }
.card-title { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 800; font-size: 0.84rem; }

.helper-badge {
    background: rgba(255, 230, 0, 0.15); color: var(--accent-gold); border: 1px solid rgba(255, 230, 0, 0.3);
    padding: 2px 5px; border-radius: 6px; font-size: 0.65rem; font-weight: 700;
}

/* THE BILLBOARD Sponsor Rail */
.pricing-info-bar {
    background: rgba(10, 14, 23, 0.6); border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 6px;
    padding: 4px 8px; margin-bottom: 6px; display: flex; align-items: center; justify-content: space-between; font-size: 0.72rem;
}

.sponsor-slots-list { display: flex; flex-direction: column; gap: 4px; flex: 1; overflow-y: auto; max-height: 180px; }

.sponsor-slot-item {
    background: rgba(10, 14, 23, 0.7); border: 1px solid rgba(0, 102, 255, 0.2); border-radius: 6px;
    padding: 5px 8px; display: flex; align-items: center; justify-content: space-between; gap: 6px;
    transition: all 0.2s; text-decoration: none; color: #fff;
}

.sponsor-slot-item:hover { border-color: var(--primary-blue); background: rgba(0, 102, 255, 0.1); }
.slot-index-badge { background: rgba(255, 255, 255, 0.08); color: var(--accent-gold); font-weight: 800; font-size: 0.68rem; padding: 2px 4px; border-radius: 4px; }
.slot-details { flex: 1; display: flex; flex-direction: column; gap: 1px; overflow: hidden; }
.slot-name { font-weight: 700; font-size: 0.75rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.slot-msg { font-size: 0.68rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.slot-stats { text-align: right; display: flex; flex-direction: column; align-items: flex-end; }
.slot-price { font-weight: 800; color: var(--accent-gold); font-size: 0.75rem; }
.slot-clicks { font-size: 0.62rem; color: var(--accent-green); }

/* Leaderboard Tabs */
.leaderboard-card { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.leader-tabs { display: flex; gap: 2px; margin-bottom: 6px; background: rgba(10, 14, 23, 0.6); padding: 2px; border-radius: 6px; }
.tab-btn { flex: 1; background: transparent; border: none; color: var(--text-muted); padding: 3px; font-size: 0.68rem; font-weight: 700; border-radius: 4px; cursor: pointer; transition: all 0.2s; }
.tab-btn.active, .tab-btn:hover { background: var(--primary-blue); color: #fff; }

.table-container { flex: 1; overflow-y: auto; max-height: 150px; }
.cyber-table { width: 100%; border-collapse: collapse; font-size: 0.75rem; }
.cyber-table th { color: var(--text-muted); font-size: 0.65rem; text-transform: uppercase; padding: 4px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.cyber-table td { padding: 4px 6px; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }

/* CENTER COLUMN: FIXED VERTICAL ARCADE 360x520 CANVAS ARENA */
.center-column { display: flex; flex-direction: column; align-items: center; min-height: 0; flex: 1; }
.game-card { width: 100%; display: flex; flex-direction: column; gap: 6px; align-items: center; height: 100%; }

.ph-multiplier-bar {
    width: 100%; background: linear-gradient(90deg, rgba(0, 102, 255, 0.18) 0%, rgba(168, 85, 247, 0.18) 100%);
    border: 1px solid rgba(0, 102, 255, 0.35); border-radius: 6px; padding: 4px 10px;
    display: flex; align-items: center; justify-content: space-between;
}

.ph-left { display: flex; align-items: center; gap: 5px; font-weight: 700; font-size: 0.75rem; }

.billboard-bar {
    width: 100%; background: rgba(10, 14, 23, 0.8); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px; padding: 4px 8px; display: flex; align-items: center; justify-content: space-between;
}

.live-tag { background: var(--accent-orange); color: #fff; font-size: 0.58rem; font-weight: 800; padding: 2px 4px; border-radius: 4px; margin-right: 4px; }
.billboard-text { font-size: 0.75rem; color: var(--text-main); }
.billboard-link-btn { color: var(--primary-blue); font-size: 0.72rem; font-weight: 700; text-decoration: none; }

/* Canvas Wrapper - Fixed Vertical Arcade 360x520 Ratio */
.canvas-wrapper {
    position: relative;
    width: 360px;
    height: 520px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--panel-border);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.22);
    display: flex;
    align-items: center;
    justify-content: center;
}

#bird-canvas, #gameCanvas { width: 360px; height: 520px; display: block; background: #0a0e17; }

.canvas-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 14, 23, 0.92); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity 0.2s ease; padding: 14px;
}

.canvas-overlay.active { opacity: 1; pointer-events: auto; }
.overlay-content { text-align: center; width: 100%; display: flex; flex-direction: column; align-items: center; gap: 6px; }

.cyber-badge {
    background: rgba(0, 102, 255, 0.15); color: var(--primary-blue);
    border: 1px solid rgba(0, 102, 255, 0.3); padding: 2px 8px; border-radius: 14px;
    font-size: 0.65rem; font-weight: 800;
}

.overlay-btn-group { display: flex; flex-direction: column; gap: 5px; width: 100%; max-width: 240px; }
.game-over-actions { display: flex; flex-direction: column; gap: 5px; width: 100%; max-width: 260px; }

.user-coins-info { font-size: 0.75rem; color: var(--accent-gold); font-weight: 700; }
.cyber-input {
    width: 100%; background: rgba(10, 14, 23, 0.85); border: 1px solid var(--panel-border);
    border-radius: 6px; padding: 6px 10px; color: #fff; font-family: 'Inter', sans-serif; font-size: 0.8rem; outline: none;
}

.game-stats-bar {
    width: 100%; display: flex; justify-content: space-around;
    background: rgba(10, 14, 23, 0.6); border-radius: 8px; padding: 6px;
}

.stat-item { text-align: center; }
.stat-label { display: block; font-size: 0.62rem; color: var(--text-muted); font-weight: 700; }
.stat-value { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 0.95rem; font-weight: 800; }
.stat-value.highlight { color: var(--accent-gold); }

/* Right Column Bidding Form */
.bid-form-card { display: flex; flex-direction: column; flex: 1; }
.cyber-form { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.form-group label { display: block; font-size: 0.7rem; color: var(--text-muted); font-weight: 600; margin-bottom: 2px; }
.form-group input { width: 100%; background: rgba(10, 14, 23, 0.8); border: 1px solid var(--panel-border); border-radius: 6px; padding: 6px 8px; color: #fff; outline: none; font-size: 0.8rem; }

.input-with-suffix { position: relative; }
.input-suffix { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); font-size: 0.7rem; color: var(--text-muted); font-weight: 700; }

/* ELEGANT CLEAN UTC FOOTER */
.clean-utc-footer {
    padding: 8px 16px;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    background: rgba(17, 20, 29, 0.95);
    border-top: 1px solid var(--panel-border);
    backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Non-blocking Collapsible Live Chat Drawer */
.chat-widget {
    position: fixed; bottom: 48px; right: 16px; width: 270px;
    background: rgba(17, 20, 29, 0.92); backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border); border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); z-index: 999;
    transition: all 0.25s ease; pointer-events: auto;
}

.chat-widget.collapsed { height: 34px; overflow: hidden; pointer-events: auto; }
.chat-widget.collapsed .chat-body, .chat-widget.collapsed .chat-footer { display: none !important; }

.chat-header {
    padding: 6px 10px; display: flex; align-items: center; justify-content: space-between;
    cursor: pointer; border-bottom: 1px solid rgba(255, 255, 255, 0.08); font-weight: 700; font-size: 0.8rem;
}

.chat-toggle-btn { background: transparent; border: none; color: var(--text-muted); font-size: 0.8rem; cursor: pointer; }
.chat-body { height: 140px; padding: 6px; overflow-y: auto; }
.chat-messages { display: flex; flex-direction: column; gap: 4px; font-size: 0.72rem; }
.chat-sender { font-weight: 700; color: var(--primary-blue); }

.chat-footer { display: flex; padding: 4px; gap: 4px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.chat-footer input { flex: 1; background: rgba(10, 14, 23, 0.8); border: 1px solid var(--panel-border); border-radius: 5px; padding: 4px 6px; color: #fff; font-size: 0.72rem; outline: none; }

/* Modals */
.modal-backdrop {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(10, 14, 23, 0.85); backdrop-filter: blur(12px);
    z-index: 9999; display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity 0.2s ease;
}

.modal-backdrop.active { opacity: 1; pointer-events: auto; }
.modal-card { background: var(--panel-bg); border: 1px solid var(--panel-border); border-radius: 12px; width: 90%; max-width: 400px; padding: 14px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.close-modal-btn { background: transparent; border: none; color: var(--text-muted); font-size: 1.2rem; cursor: pointer; }

.coin-modal-sub { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 10px; }
.coin-packages-list { display: flex; flex-direction: column; gap: 6px; }

.coin-pkg-btn {
    position: relative; background: rgba(10, 14, 23, 0.8); border: 1px solid var(--panel-border);
    border-radius: 8px; padding: 10px; display: flex; align-items: center; justify-content: space-between;
    color: #fff; cursor: pointer; transition: all 0.2s;
}

.coin-pkg-btn:hover { border-color: var(--primary-blue); transform: translateY(-2px); background: rgba(0, 102, 255, 0.1); }
.coin-pkg-btn.popular { border-color: var(--accent-gold); }

.popular-tag {
    position: absolute; top: -7px; right: 8px; background: var(--accent-gold); color: #0a0e17;
    font-size: 0.58rem; font-weight: 800; padding: 2px 5px; border-radius: 5px;
}

.pkg-info { display: flex; flex-direction: column; align-items: flex-start; }
.pkg-coins { font-weight: 800; font-size: 0.85rem; color: var(--accent-gold); }
.pkg-desc { font-size: 0.68rem; color: var(--text-muted); }
.pkg-price { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 800; font-size: 0.9rem; }

/* Toast Notifications */
.toast-container { position: fixed; bottom: 80px; right: 16px; z-index: 99999; display: flex; flex-direction: column; gap: 5px; }

.toast {
    background: var(--panel-bg); border: 1px solid var(--primary-blue);
    color: #fff; padding: 6px 14px; border-radius: 7px; backdrop-filter: blur(12px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.5); font-size: 0.78rem; display: flex; align-items: center; gap: 6px;
    animation: slideIn 0.25s ease;
}

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

/* ==========================================================================
   Mobile Responsive & Touch Optimization (@media max-width: 768px)
   ========================================================================== */
@media (max-width: 768px) {
    html, body {
        height: auto;
        max-height: none;
        overflow-x: hidden;
        overflow-y: auto;
        touch-action: manipulation;
    }

    .app-container {
        height: auto;
        max-height: none;
        overflow-y: visible;
        padding: 6px 8px;
        gap: 8px;
    }

    header.app-header {
        flex-wrap: wrap;
        gap: 6px;
        padding: 6px 10px;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
        gap: 4px;
    }

    .top-leader-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        padding: 8px 10px;
    }

    .banner-action {
        width: 100%;
        justify-content: space-between;
    }

    .main-layout {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .center-column {
        order: 1;
        width: 100%;
    }

    .left-column {
        order: 2;
        width: 100%;
    }

    .right-column {
        order: 3;
        width: 100%;
    }

    .canvas-wrapper {
        width: 100%;
        max-width: 350px;
        height: auto;
        aspect-ratio: 9 / 13;
        margin: 0 auto;
        display: block;
        touch-action: manipulation;
    }

    #bird-canvas, #gameCanvas {
        width: 100% !important;
        height: 100% !important;
        touch-action: manipulation;
    }

    .chat-widget {
        bottom: 12px;
        right: 12px;
        width: 250px;
        z-index: 9999;
    }
}