/* ============================================
   Orbita.io - Styles
   ============================================ */

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

:root {
    --bg: #0a0a1a;
    --bg-card: rgba(15, 15, 35, 0.85);
    --border-glow: rgba(100, 140, 255, 0.3);
    --accent: #5b8cff;
    --accent-bright: #7da8ff;
    --accent-glow: rgba(91, 140, 255, 0.4);
    --text: #e0e4f0;
    --text-dim: #7a7f96;
    --danger: #ff4c6a;
    --success: #3dffa2;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    cursor: default;
}

/* ---- Start Screen ---- */

#start-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    background: var(--bg);
    background-image:
        radial-gradient(ellipse at 30% 20%, rgba(91, 140, 255, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 80%, rgba(160, 80, 255, 0.05) 0%, transparent 60%);
}

#start-screen.hidden {
    display: none;
}

.start-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 48px 44px 36px;
    text-align: center;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow:
        0 0 60px rgba(91, 140, 255, 0.08),
        0 20px 60px rgba(0, 0, 0, 0.4);
    min-width: 360px;
    max-width: 420px;
    animation: cardIn 0.5s ease-out;
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.game-title {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 6px;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.title-orb {
    display: inline-block;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #7da8ff, #3355cc);
    box-shadow: 0 0 20px var(--accent-glow), 0 0 40px rgba(91, 140, 255, 0.2);
    animation: orbPulse 2s ease-in-out infinite;
}

@keyframes orbPulse {
    0%, 100% { box-shadow: 0 0 20px var(--accent-glow), 0 0 40px rgba(91, 140, 255, 0.2); }
    50%      { box-shadow: 0 0 28px var(--accent-glow), 0 0 56px rgba(91, 140, 255, 0.3); }
}

.title-dot {
    color: var(--accent);
}

.tagline {
    color: var(--text-dim);
    font-size: 15px;
    margin-bottom: 32px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 28px;
}

#nickname {
    flex: 1;
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-glow);
    background: rgba(10, 10, 30, 0.6);
    color: var(--text);
    font-size: 16px;
    font-family: var(--font);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#nickname:focus {
    border-color: var(--accent);
    box-shadow: 0 0 16px rgba(91, 140, 255, 0.15);
}

#nickname::placeholder {
    color: var(--text-dim);
}

#play-btn,
#respawn-btn {
    padding: 14px 32px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, #4a7aff, #6b5cff);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    font-family: var(--font);
}

#play-btn:hover,
#respawn-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(91, 140, 255, 0.35);
}

#play-btn:active,
#respawn-btn:active {
    transform: translateY(0);
}

.start-footer {
    display: flex;
    justify-content: center;
    gap: 10px;
    color: var(--text-dim);
    font-size: 13px;
}

.sep {
    opacity: 0.3;
}

/* ---- Canvas ---- */

#game-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* ---- HUD ---- */

#hud {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 50;
}

#hud.hidden {
    display: none;
}

/* Score */
#score-panel {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    padding: 12px 20px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.score-label {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--text-dim);
    font-weight: 600;
}

#score-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-bright);
    text-shadow: 0 0 12px var(--accent-glow);
}

/* Online counter */
#online-panel {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 8px 18px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dim);
}

#online-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px rgba(61, 255, 162, 0.5);
    animation: dotBlink 2s ease-in-out infinite;
}

@keyframes dotBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Leaderboard */
#leaderboard {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    padding: 14px 18px;
    min-width: 200px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.lb-header {
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--text-dim);
    font-weight: 700;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(100, 140, 255, 0.15);
}

#lb-list {
    list-style: none;
    counter-reset: lb;
}

#lb-list li {
    counter-increment: lb;
    padding: 4px 0;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    transition: color 0.2s;
}

#lb-list li.is-player {
    color: var(--accent-bright);
    font-weight: 700;
}

#lb-list li::before {
    content: counter(lb) ".";
    width: 22px;
    text-align: right;
    font-size: 11px;
    opacity: 0.5;
    flex-shrink: 0;
}

.lb-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.lb-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lb-score {
    font-size: 12px;
    opacity: 0.6;
    font-weight: 600;
}

/* Minimap */
#minimap {
    position: absolute;
    bottom: 20px;
    right: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-glow);
    background: rgba(10, 10, 30, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* ---- Death Screen ---- */

#death-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    background: rgba(5, 5, 15, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

#death-screen.hidden {
    display: none;
}

.death-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 76, 106, 0.3);
    border-radius: 20px;
    padding: 40px 48px;
    text-align: center;
    box-shadow: 0 0 60px rgba(255, 76, 106, 0.1);
    animation: cardIn 0.4s ease-out;
}

.death-card h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--danger);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.death-card p {
    color: var(--text-dim);
    margin-bottom: 28px;
    font-size: 16px;
}

.death-card #final-score {
    color: var(--text);
    font-weight: 700;
}

#respawn-btn {
    padding: 14px 40px;
}

/* ---- Responsive ---- */

@media (max-width: 600px) {
    .start-card {
        min-width: unset;
        margin: 16px;
        padding: 32px 24px 28px;
    }

    .game-title {
        font-size: 36px;
    }

    .title-orb {
        width: 28px;
        height: 28px;
    }

    .input-group {
        flex-direction: column;
    }

    #leaderboard {
        top: auto;
        bottom: 230px;
        right: 10px;
        min-width: 160px;
        padding: 10px 14px;
    }

    #minimap {
        width: 140px;
        height: 140px;
        bottom: 10px;
        right: 10px;
    }

    #score-panel {
        top: 10px;
        left: 10px;
    }

    #online-panel {
        top: 10px;
    }
}