/* =====================================================
   KidsPower Chess - Complete Stylesheet
   Dark Theme | Kanit Font | Mobile Responsive | Timer UI
   ===================================================== */

/* Dashboard Navigation Button */
.dashboard-nav-btn {
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 200;
    padding: 10px 18px;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 140, 0, 0.2));
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 215, 0, 0.4);
    border-radius: 30px;
    color: #ffd700;
    font-family: 'Kanit', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.dashboard-nav-btn:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.4), rgba(255, 140, 0, 0.4));
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

:root {
    --bg-deep: #050510;
    --bg-dark: #0a0a1a;
    --bg-card: rgba(18, 18, 42, 0.95);
    --text: #fff;
    --text-dim: #888;
    --gold: #ffd700;
    --orange: #ff8c00;
    --purple: #8b5cf6;
    --green: #22c55e;
    --red: #ef4444;
    --radius: 12px;
}

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

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Kanit', sans-serif;
    background: var(--bg-deep);
    color: var(--text);
    -webkit-tap-highlight-color: transparent;
}

#gameCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 1;
}

/* ===== Loading ===== */
#loading {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--bg-deep), var(--bg-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s;
}

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

.loader-box {
    text-align: center;
}

.chess-icons {
    font-size: 28px;
    letter-spacing: 6px;
    margin-bottom: 15px;
    animation: float 2s ease-in-out infinite;
}

.loader-box h1 {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.loader-box p {
    color: var(--text-dim);
    margin-bottom: 30px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 215, 0, 0.2);
    border-top-color: var(--gold);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

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

@keyframes float {

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

    50% {
        transform: translateY(-8px);
    }
}

/* ===== Panels ===== */
.panel {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
}

.panel.hidden {
    display: none;
}

.panel-box {
    background: var(--bg-card);
    padding: 35px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 215, 0, 0.15);
    max-width: 400px;
    width: 90%;
    text-align: center;
    animation: slideUp 0.25s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
}

/* Logo */
.logo {
    margin-bottom: 30px;
}

.logo .king {
    font-size: 56px;
    display: block;
    filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.4));
}

.logo h1 {
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo p {
    color: var(--text-dim);
    font-size: 14px;
}

/* Options */
.option {
    margin-bottom: 20px;
}

.option label {
    display: block;
    color: var(--text-dim);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.settings-row {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 13px 20px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    margin-bottom: 10px;
}

.btn:last-child {
    margin-bottom: 0;
}

.btn.primary {
    background: linear-gradient(135deg, var(--gold), var(--orange));
    color: #000;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

.btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
}

.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn.accent {
    background: linear-gradient(135deg, var(--purple), #3b82f6);
    color: #fff;
}

.btn.outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--text);
}

.btn.outline:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.btn.ghost {
    background: transparent;
    color: var(--text-dim);
}

.btn.ghost:hover {
    color: var(--text);
}

.btn-row {
    display: flex;
    gap: 6px;
}

.toggle {
    flex: 1;
    padding: 10px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    background: transparent;
    color: var(--text-dim);
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: 0.15s;
}

.toggle:hover {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text);
}

.toggle.active {
    background: var(--gold);
    border-color: var(--gold);
    color: #000;
}

.icon-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.15s;
}

.icon-btn:hover {
    background: var(--gold);
}

/* Room Code */
.code-box {
    background: var(--bg-deep);
    border: 2px solid var(--gold);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.code-box .label {
    color: var(--text-dim);
    font-size: 11px;
    text-transform: uppercase;
}

.code-box .code {
    font-size: 32px;
    font-weight: 700;
    font-family: monospace;
    color: var(--gold);
    letter-spacing: 6px;
}

/* Inputs */
input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    transition: 0.15s;
}

input:focus {
    outline: none;
    border-color: var(--gold);
}

input::placeholder {
    color: var(--text-dim);
    text-transform: none;
    letter-spacing: normal;
}

.status {
    color: var(--text-dim);
    font-size: 14px;
    margin: 15px 0;
}

/* ===== Timer Bar ===== */
.timer-bar {
    position: absolute;
    left: 15px;
    top: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timer-box {
    background: var(--bg-card);
    padding: 10px 18px;
    border-radius: 10px;
    font-family: monospace;
    font-size: 18px;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.2);
    min-width: 100px;
    text-align: center;
}

.timer-box.white {
    background: #f5e6c8;
    color: #000;
    border-color: #f5e6c8;
}

.timer-box.black {
    background: #3a2828;
    color: #fff;
    border-color: #3a2828;
}

.timer-box.active {
    border-color: var(--gold);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
}

.timer-box.low-time {
    animation: pulse-red 0.5s ease-in-out infinite;
}

@keyframes pulse-red {

    0%,
    100% {
        border-color: var(--red);
        box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
    }

    50% {
        border-color: #ff0000;
        box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
    }
}

/* ===== Game HUD ===== */
#gameHUD {
    position: fixed;
    inset: 0;
    z-index: 50;
    pointer-events: none;
}

#gameHUD.hidden {
    display: none;
}

#gameHUD>* {
    pointer-events: auto;
}

.hud-top {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

#turnBadge {
    background: var(--bg-card);
    padding: 10px 22px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: 2px solid var(--gold);
}

#selectedBadge {
    background: rgba(68, 255, 136, 0.2);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    border: 2px solid #44ff88;
    color: #44ff88;
}

#turnBadge.white {
    background: #f5e6c8;
    color: #000;
    border-color: #f5e6c8;
}

#turnBadge.black {
    background: #3a2828;
    color: #fff;
    border-color: var(--red);
}

#specBadge {
    background: rgba(139, 92, 246, 0.3);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    color: #c4b5fd;
    border: 2px solid var(--purple);
}

#specBadge.hidden {
    display: none;
}

.hud-side {
    position: absolute;
    right: 15px;
    top: 70px;
    width: 180px;
}

.pgn-box {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.pgn-box h3 {
    color: var(--gold);
    font-size: 11px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

#pgnText {
    max-height: 250px;
    overflow-y: auto;
    font-family: monospace;
    font-size: 12px;
    line-height: 1.7;
    color: var(--text-dim);
    /* Firefox scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--gold) rgba(255, 255, 255, 0.05);
}

/* Custom Scrollbar - Webkit (Chrome, Safari, Edge) */
#pgnText::-webkit-scrollbar {
    width: 8px;
}

#pgnText::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

#pgnText::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--gold), var(--orange));
    border-radius: 4px;
    border: 1px solid rgba(0, 0, 0, 0.2);
}

#pgnText::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #ffdd44, #ff9500);
    box-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
}

.hud-bottom {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.hud-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: var(--bg-card);
    color: var(--text);
    font-size: 20px;
    cursor: pointer;
    transition: 0.15s;
}

.hud-btn:hover {
    background: var(--gold);
    border-color: var(--gold);
    color: #000;
    transform: scale(1.1);
}

.hud-btn.hidden {
    display: none;
}

.hud-btn.muted {
    opacity: 0.5;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-box {
    background: var(--bg-card);
    padding: 35px;
    border-radius: var(--radius);
    text-align: center;
    max-width: 360px;
    width: 90%;
    border: 2px solid var(--gold);
    animation: pop 0.2s ease;
}

@keyframes pop {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
}

.modal-box h2 {
    color: var(--gold);
    margin-bottom: 12px;
}

.modal-box p {
    color: var(--text-dim);
    margin-bottom: 20px;
}

.modal-btns {
    display: flex;
    gap: 10px;
}

.modal-btns .btn {
    flex: 1;
    margin: 0;
}

#modalInput {
    margin-bottom: 15px;
}

#modalInput.hidden {
    display: none;
}

/* Promotion */
.promo-box {
    max-width: 300px;
}

.promo-btns {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.promo-btn {
    width: 60px;
    height: 60px;
    font-size: 36px;
    background: var(--bg-deep);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    cursor: pointer;
    transition: 0.15s;
}

.promo-btn:hover {
    background: var(--gold);
    border-color: var(--gold);
    transform: scale(1.1);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .panel-box {
        padding: 25px 20px;
    }

    .logo .king {
        font-size: 44px;
    }

    .logo h1 {
        font-size: 28px;
    }

    .hud-side {
        display: none;
    }

    .timer-bar {
        left: 10px;
        top: 60px;
    }

    .timer-box {
        padding: 6px 12px;
        font-size: 14px;
        min-width: 80px;
    }

    .hud-btn {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .code-box .code {
        font-size: 26px;
        letter-spacing: 4px;
    }
}

.hidden {
    display: none !important;
}