/* ── SYMPLE FLAPPY — Style ─────────────────────────────────────────────────── */

:root {
    --accent:     #3498db;
    --accent-rgb: 52, 152, 219; /* r,g,b of --accent for rgba() */
    --red:        #ff2233;
    --bg:         #0d0d0d;
    --card:       #161616;
    --text:       #e8e8e8;
    --muted:      #777;
    --border:     #252525;
}

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

.hub-link {
    display: inline-block;
    color: var(--muted);
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 6px;
    transition: color 0.15s, border-color 0.15s;
}
.hub-link:hover { color: var(--text); border-color: #555; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Game Container ───────────────────────────────────────────────────────── */
#game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 16px 12px 28px;
    width: 100%;
    max-width: 440px;
}

/* ── Logo ─────────────────────────────────────────────────────────────────── */
#logo-wrap {
    width: 400px;
    display: flex;
    justify-content: center;
    margin-bottom: 2px;
}
#game-logo {
    width: 400px;
    height: 78px;
    display: block;
    animation: logoGlow 3s ease-in-out infinite;
}
@keyframes logoGlow {
    0%, 100% { filter: drop-shadow(0 0 4px #ff223388); }
    50%       { filter: drop-shadow(0 0 14px #ff2233cc); }
}

/* ── Score Bar ────────────────────────────────────────────────────────────── */
#score-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 400px;
    padding: 5px 14px;
    background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.03) 100%);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border-radius: 8px;
    font-size: 0.9rem;
    color: #aaa;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.10), 0 2px 12px rgba(0,0,0,0.3);
}
#score-bar strong, #best-score {
    color: var(--accent);
    font-size: 1.05rem;
    font-weight: 800;
    transition: color 0.3s;
}
#medal-display { font-size: 1.2rem; min-width: 24px; }

/* ── Canvas Wrap ──────────────────────────────────────────────────────────── */
#canvas-wrap {
    position: relative;
    width: 400px;
    height: 600px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--accent);
    box-shadow: 0 0 26px rgba(var(--accent-rgb), 0.30),
                0 0 60px rgba(var(--accent-rgb), 0.10);
    transition: border-color 0.4s, box-shadow 0.4s;
}
#game-canvas { display: block; width: 400px; height: 600px; }

/* ── Overlays ─────────────────────────────────────────────────────────────── */
.overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(160deg, rgba(255,255,255,0.08) 0%, rgba(10,10,20,0.30) 100%);
    backdrop-filter: blur(28px) saturate(160%);
    -webkit-backdrop-filter: blur(28px) saturate(160%);
    border: 1px solid rgba(255,255,255,0.13);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.14),
                0 16px 48px rgba(0,0,0,0.55);
    padding: 22px 20px;
    overflow-y: auto;
    animation: overlayIn 0.2s ease-out;
}
@keyframes overlayIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0);   }
}

/* ── Picker Sections ──────────────────────────────────────────────────────── */
.picker-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    width: 100%;
}
.picker-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #999;
    text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}

/* ── Difficulty Buttons ───────────────────────────────────────────────────── */
#diff-picker { display: flex; gap: 8px; }
.diff-btn {
    padding: 7px 14px;
    font-size: 0.8rem;
    font-weight: 700;
    background: rgba(255,255,255,0.05);
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 7px;
    cursor: pointer;
    letter-spacing: 0.5px;
    backdrop-filter: blur(8px);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
}
.diff-btn:hover {
    border-color: rgba(255,255,255,0.22);
    background: rgba(255,255,255,0.09);
    transform: translateY(-1px);
}
.diff-btn.active {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.18);
    color: var(--accent);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12),
                0 0 10px rgba(var(--accent-rgb), 0.25);
}

/* ── Skin Buttons ─────────────────────────────────────────────────────────── */
#skin-picker { display: flex; gap: 7px; }
.skin-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 0;
    width: 60px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 9px;
    color: var(--text);
    font-size: 1.4rem;
    cursor: pointer;
    backdrop-filter: blur(8px);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
    transition: border-color 0.2s, background 0.2s, transform 0.15s, box-shadow 0.2s;
}
.skin-btn span {
    font-size: 0.65rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.skin-btn:hover {
    border-color: rgba(255,255,255,0.22);
    background: rgba(255,255,255,0.09);
    transform: translateY(-2px);
}
.skin-btn.active {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.16);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12),
                0 0 14px rgba(var(--accent-rgb), 0.30);
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.primary-btn {
    padding: 11px 28px;
    font-size: 0.95rem;
    font-weight: 800;
    color: #000;
    background: var(--accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: filter 0.2s, transform 0.15s;
    box-shadow: 0 3px 14px rgba(var(--accent-rgb), 0.40);
}
.primary-btn:hover  { filter: brightness(1.18); transform: translateY(-2px); }
.primary-btn:active { transform: translateY(0); }

.secondary-btn {
    padding: 9px 18px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    background: transparent;
    border: 2px solid #3a3a3a;
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, transform 0.15s;
}
.secondary-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.ghost-btn {
    padding: 7px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    background: transparent;
    border: 1px solid #2a2a2a;
    border-radius: 7px;
    cursor: pointer;
    letter-spacing: 0.5px;
    transition: color 0.2s, border-color 0.2s;
}
.ghost-btn:hover { color: var(--text); border-color: #555; }

/* ── Daily Challenge ──────────────────────────────────────────────────────── */
.daily-btn {
    padding: 9px 22px;
    font-size: 0.88rem;
    font-weight: 800;
    color: #f1c40f;
    background: rgba(241,196,15,0.07);
    border: 1px solid rgba(241,196,15,0.32);
    border-radius: 8px;
    cursor: pointer;
    backdrop-filter: blur(8px);
    box-shadow: 0 0 14px rgba(241,196,15,0.10), inset 0 1px 0 rgba(255,255,255,0.06);
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.daily-btn:hover {
    background: rgba(241,196,15,0.15);
    border-color: rgba(241,196,15,0.55);
    transform: translateY(-1px);
}
.daily-badge {
    font-size: 0.62rem;
    font-weight: 800;
    color: #f1c40f;
    background: rgba(241,196,15,0.12);
    border: 1px solid rgba(241,196,15,0.3);
    border-radius: 5px;
    padding: 2px 6px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    animation: pulse 1.2s ease-in-out infinite alternate;
}

/* ── Menu Layout ──────────────────────────────────────────────────────────── */
.menu-stats {
    font-size: 0.78rem;
    color: var(--muted);
}
.menu-stats strong { color: var(--accent); transition: color 0.3s; }
.menu-btns { display: flex; gap: 10px; align-items: center; }

/* ── Leaderboard ──────────────────────────────────────────────────────────── */
.lb-title {
    font-size: 1.3rem;
    font-weight: 900;
    color: #f1c40f;
    text-shadow: 0 0 12px rgba(241,196,15,0.5), 0 2px 8px rgba(0,0,0,0.6);
    letter-spacing: 2px;
}
.lb-heading {
    font-size: 0.72rem;
    color: var(--muted);
    letter-spacing: 3px;
    text-transform: uppercase;
}
.lb-list {
    list-style: none;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0;
}
.lb-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 7px;
    padding: 6px 10px;
    font-size: 0.82rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}
.lb-list li.lb-top { border-color: #f1c40f55; background: rgba(241,196,15,0.06); }
.lb-rank  { font-size: 0.95rem; width: 26px; text-align: center; }
.lb-name  { flex: 1; color: var(--text); font-weight: 600; }
.lb-score { color: var(--accent); font-weight: 800; font-size: 0.9rem; transition: color 0.3s; }
.lb-level { color: var(--muted); font-size: 0.68rem; font-weight: 600; background: rgba(255,255,255,0.05); padding: 1px 5px; border-radius: 4px; border: 1px solid rgba(255,255,255,0.08); }
.lb-empty { color: var(--muted); font-size: 0.8rem; text-align: center; padding: 10px 0; }

/* ── Pause Screen ─────────────────────────────────────────────────────────── */
.pause-icon  { font-size: 3.5rem; line-height: 1; opacity: 0.9; }
.pause-title { font-size: 2rem; font-weight: 900; letter-spacing: 6px; color: var(--accent); transition: color 0.3s; text-shadow: 0 2px 10px rgba(0,0,0,0.6); }
.pause-hint  { font-size: 0.8rem; color: #999; text-shadow: 0 1px 4px rgba(0,0,0,0.5); }
kbd {
    display: inline-block;
    padding: 1px 6px;
    background: #2a2a2a;
    border: 1px solid #444;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text);
}

/* ── Game Over ────────────────────────────────────────────────────────────── */
.gameover-title {
    font-size: 1.7rem;
    font-weight: 900;
    color: #e74c3c;
    text-shadow: 0 2px 8px rgba(0,0,0,0.7);
}
.score-line {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
    transition: color 0.3s;
    text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}
.final-medal {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    min-height: 1.4em;
    text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}
.new-best {
    font-size: 0.82rem;
    color: #f1c40f;
    font-weight: 700;
    letter-spacing: 1px;
    animation: pulse 0.75s infinite alternate;
}
@keyframes pulse {
    from { opacity: 0.65; transform: scale(1);    }
    to   { opacity: 1;    transform: scale(1.05); }
}
.restart-hint { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.3px; }
.gameover-btns { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }

/* ── Name Input ───────────────────────────────────────────────────────────── */
#name-input-wrap { display: flex; gap: 7px; width: 100%; }
#player-name {
    flex: 1;
    padding: 8px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 7px;
    color: var(--text);
    font-size: 0.88rem;
    outline: none;
    backdrop-filter: blur(8px);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), inset 0 2px 8px rgba(0,0,0,0.2);
    transition: border-color 0.2s;
}
#player-name:focus { border-color: var(--accent); }
#player-name::placeholder { color: #666; }
.save-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
    font-weight: 700;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 7px;
    cursor: pointer;
    transition: filter 0.2s;
    white-space: nowrap;
}
.save-btn:hover    { filter: brightness(1.15); }
.save-btn:disabled { opacity: 0.55; cursor: default; }

/* ── LB Section in Game Over ──────────────────────────────────────────────── */
#lb-section { width: 100%; display: flex; flex-direction: column; gap: 5px; align-items: center; }

/* ── Death Flash ──────────────────────────────────────────────────────────── */
#death-flash {
    position: absolute;
    inset: 0;
    background: rgba(255,20,30,0.65);
    opacity: 0;
    pointer-events: none;
}
#death-flash.flash { animation: deathFlash 0.45s ease-out forwards; }
@keyframes deathFlash { 0% { opacity: 0.72; } 100% { opacity: 0; } }

/* ── Screen Shake ─────────────────────────────────────────────────────────── */
@keyframes screenShake {
    0%   { transform: translate(0,0);     }
    15%  { transform: translate(-5px,2px);}
    30%  { transform: translate(5px,-3px);}
    45%  { transform: translate(-4px,3px);}
    60%  { transform: translate(4px,-1px);}
    75%  { transform: translate(-2px,2px);}
    90%  { transform: translate(2px,-1px);}
    100% { transform: translate(0,0);     }
}
#canvas-wrap.shake { animation: screenShake 0.4s ease-out forwards; }

/* ── Mute Button ──────────────────────────────────────────────────────────── */
.mute-btn {
    padding: 0;
    width: 28px; height: 28px;
    font-size: 0.85rem;
    line-height: 1;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text);
    flex-shrink: 0;
    transition: border-color 0.2s, background 0.2s;
}
.mute-btn:hover { border-color: var(--accent); background: rgba(255,255,255,0.05); }

/* ── Controls Hint ────────────────────────────────────────────────────────── */
.controls-hint { font-size: 0.7rem; color: #666; letter-spacing: 0.3px; text-align: center; }
.subtitle { font-size: 0.72rem; color: #999; letter-spacing: 0.3px; }

/* ── Utility ──────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }