/* ═══════════════════════════════════════════
   RETRO OS ARCADE - Dark Retro Theme
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&display=swap');

:root {
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a2e;
    --neon-blue: #00d4ff;
    --neon-green: #39ff14;
    --neon-pink: #ff006e;
    --neon-purple: #b829dd;
    --neon-yellow: #ffe600;
    --text-main: #e0e0e0;
    --text-dim: #888;
    --border: #2a2a3a;
}

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

body {
    font-family: 'VT323', monospace;
    background: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── Scanline Overlay ── */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.08) 2px,
        rgba(0, 0, 0, 0.08) 4px
    );
    z-index: 9999;
}

/* ── Mobile Warning ── */
.mobile-warning {
    display: none;
    background: linear-gradient(135deg, #1a1a2e, #0d1929);
    border: 1px solid var(--neon-yellow);
    color: var(--neon-yellow);
    padding: 0.8rem 1.2rem;
    text-align: center;
    font-size: 1.1rem;
    position: relative;
}

.mobile-warning-close {
    background: none;
    border: none;
    color: var(--neon-yellow);
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: 1rem;
    vertical-align: middle;
}

@media (max-width: 768px) {
    .mobile-warning {
        display: block;
    }
}

/* ── SBP Badge ── */
.sbp-badge {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9, #6366f1);
    color: white;
    font-family: 'VT323', monospace;
    font-size: 1rem;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.sbp-badge-small {
    display: inline-block;
    background: linear-gradient(135deg, #0ea5e9, #6366f1);
    color: white;
    font-family: 'VT323', monospace;
    font-size: 0.85rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    margin-right: 0.8rem;
}

/* ── Header ── */
header {
    text-align: center;
    padding: 3rem 1rem 2rem;
}

header h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: 2rem;
    color: var(--neon-blue);
    text-shadow: 0 0 20px var(--neon-blue), 0 0 40px rgba(0, 212, 255, 0.3);
    margin-bottom: 0.8rem;
    letter-spacing: 2px;
}

header p {
    font-size: 1.4rem;
    color: var(--text-dim);
}

/* ── OS Grid ── */
.os-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* ── OS Card ── */
.os-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}

.os-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-accent);
    opacity: 0.7;
    transition: opacity 0.3s;
}

.os-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: var(--card-accent);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 20px color-mix(in srgb, var(--card-accent) 20%, transparent);
}

.os-card:hover::before {
    opacity: 1;
}

.os-card .icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.os-card h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 0.85rem;
    color: var(--card-accent);
    margin-bottom: 0.8rem;
    text-shadow: 0 0 10px color-mix(in srgb, var(--card-accent) 40%, transparent);
}

.os-card .year {
    font-size: 1.3rem;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.os-card .desc {
    font-size: 1.2rem;
    color: var(--text-main);
    line-height: 1.4;
}

.os-card .size {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    font-size: 1.1rem;
    color: var(--text-dim);
}

/* ── Emulator Page ── */
.emulator-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
}

.emulator-header h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: 0.9rem;
    color: var(--neon-blue);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-main);
    font-family: 'VT323', monospace;
    font-size: 1.2rem;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--neon-blue);
}

.emulator-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    min-height: calc(100vh - 60px);
}

#screen_container {
    background: #000;
    border: 3px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.8), 0 0 15px rgba(0, 212, 255, 0.1);
}

#screen_container canvas {
    display: block;
}

.controls {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-ctrl {
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-main);
    font-family: 'VT323', monospace;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-ctrl:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--neon-blue);
}

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

.btn-exit {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
}

.btn-exit:hover {
    background: rgba(255, 0, 110, 0.15);
}

.btn-save {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.btn-restore {
    border-color: var(--neon-purple);
    color: var(--neon-purple);
}

/* ── Pointer Lock: hide browser cursor when captured ── */
#screen_container.mouse-captured {
    cursor: none;
}

.status-bar .hint {
    color: var(--neon-yellow);
    font-size: 1rem;
}

.status-bar {
    margin-top: 1rem;
    font-size: 1.1rem;
    color: var(--text-dim);
}

.status-bar .running {
    color: var(--neon-green);
}

/* ── Footer ── */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-dim);
    font-size: 1.1rem;
}

footer a {
    color: var(--neon-blue);
    text-decoration: none;
}

/* ── Loading + Progress Bar ── */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--neon-green);
    font-size: 1.3rem;
    width: 100%;
    max-width: 500px;
}

.progress-container {
    width: 100%;
    height: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 5%;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-green));
    border-radius: 4px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--neon-blue);
}

.loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--neon-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ── Auth Gate ── */
.auth-hidden {
    display: none;
}

.auth-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 1.5rem;
    color: var(--neon-blue);
    font-size: 1.3rem;
}

.auth-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--neon-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.access-denied {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 2rem;
    gap: 1.5rem;
}

.denied-icon {
    font-size: 5rem;
    margin-bottom: 0.5rem;
}

.access-denied h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.5rem;
    color: var(--neon-blue);
    text-shadow: 0 0 20px var(--neon-blue);
}

.denied-msg {
    font-size: 1.4rem;
    color: var(--text-main);
    max-width: 500px;
    line-height: 1.6;
}

.btn-join-club {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #0ea5e9, #6366f1);
    color: white;
    font-family: 'Press Start 2P', cursive;
    font-size: 0.85rem;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-join-club:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(14, 165, 233, 0.5);
}

.denied-sub {
    font-size: 1.1rem;
    color: var(--text-dim);
}

.denied-sub a {
    color: var(--neon-blue);
    text-decoration: none;
}

/* ── Responsive ── */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.2rem;
    }

    .os-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .emulator-header {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.8rem 1rem;
    }

    .header-left {
        flex-direction: column;
        gap: 0.3rem;
    }

    .controls {
        gap: 0.5rem;
    }

    .btn-ctrl {
        padding: 0.4rem 0.8rem;
        font-size: 1rem;
    }

    .access-denied h2 {
        font-size: 1rem;
    }
}