:root {
    --lava:   #ff4500;
    --lava2:  #ff7a00;
    --orange: #ff6a1a;
    --panel:  rgba(10, 6, 4, 0.90);
    --panel2: rgba(255,255,255,0.04);
    --line:   rgba(255,255,255,0.09);
    --text:   #f0e6d8;
    --muted:  #9a8070;
    --ok:     #90d090;
}
* { box-sizing: border-box; }
html, body {
    margin: 0; height: 100%; overflow: hidden;
    background: #050201;
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-user-select: none; user-select: none;
}
#c { display: block; width: 100vw; height: 100vh; touch-action: none; }
.hidden { display: none !important; }
h1,h2,h3,p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
.display { font-family: 'Black Ops One', 'Courier New', monospace; }
.kicker { color: var(--lava2); font-weight: 800; font-size: 0.72rem;
    letter-spacing: 0.22em; text-transform: uppercase; }
.status { min-height: 1.3em; color: var(--muted); font-size: 0.88rem; text-align: center; }
.status.error { color: #ff9080; }

/* ── Screens ────────────────────────────────────────────────── */
.screen {
    position: fixed; inset: 0; z-index: 20;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 1rem; overflow: auto;
}

/* ── Panel ──────────────────────────────────────────────────── */
.panel {
    background: var(--panel);
    border: 1px solid rgba(255,100,0,0.18);
    border-radius: 16px;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 24px 72px rgba(0,0,0,0.9), 0 0 0 1px rgba(255,80,0,0.10);
    padding: 2rem;
    width: min(400px, 94vw);
    display: flex; flex-direction: column; gap: 1rem;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    border: 1px solid var(--line);
    background: var(--panel2);
    color: var(--text);
    font-weight: 700; font-size: 0.95rem;
    padding: 11px 18px; border-radius: 12px;
    transition: transform 0.12s, background-color 0.18s, border-color 0.18s;
}
.btn:hover { border-color: rgba(255,255,255,0.3); }
.btn:active { transform: translateY(1px); }
.btn.primary {
    background: linear-gradient(135deg, #d43200, #ff5a00);
    color: #fff; border-color: transparent; font-weight: 800;
}
.btn.primary:hover { background: linear-gradient(135deg, #e03600, #ff6800); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.big { width: 100%; font-size: 1rem; padding: 14px 20px; }
.btn.small { padding: 7px 12px; font-size: 0.8rem; }
.icon-btn {
    position: fixed; top: 14px; right: 14px; z-index: 30;
    background: rgba(10,6,4,0.7); border-color: rgba(255,255,255,0.12);
    font-size: 1rem; width: 38px; height: 38px; padding: 0;
    display: flex; align-items: center; justify-content: center; border-radius: 10px;
}
.home-btn {
    position: fixed; top: 14px; left: 14px; z-index: 30; text-decoration: none;
    background: rgba(10,6,4,0.7); border-color: rgba(255,255,255,0.12); border-radius: 10px;
}

/* ── Fields ─────────────────────────────────────────────────── */
.field {
    width: 100%; font: 600 1rem 'Inter', sans-serif;
    color: var(--text); background: rgba(0,0,0,0.5);
    border: 1px solid var(--line); border-radius: 12px;
    padding: 12px 14px; outline: none;
    -webkit-user-select: text; user-select: text;
}
.field:focus { border-color: var(--lava); box-shadow: 0 0 0 3px rgba(255,69,0,0.25); }

/* ── Menu ───────────────────────────────────────────────────── */
.menu-panel { text-align: center; }
.title-wrap { margin-bottom: 0.5rem; }

@keyframes lava-flicker {
    0%,17%,19%,96%,100% { opacity:1; text-shadow: 0 0 30px #ff450088, 0 0 60px #ff220044; }
    18%  { opacity: 0.25; text-shadow: none; }
    97%  { opacity: 0.8; }
}
.game-title {
    font-size: clamp(3.2rem, 14vw, 5rem);
    line-height: 0.92;
    letter-spacing: 0.05em;
    color: #ffe0c0;
    animation: lava-flicker 8s infinite;
}
.tagline {
    color: var(--muted); font-size: 0.9rem;
    line-height: 1.55; margin: 0.75rem auto 0;
}
.menu-form { display: grid; gap: 10px; text-align: left; }
.menu-form label { font-size: 0.76rem; font-weight: 800; color: var(--muted); letter-spacing: 0.08em; }
.join-row { display: flex; gap: 8px; }
.join-row .field {
    text-transform: uppercase; letter-spacing: 0.3em;
    font-weight: 800; text-align: center;
}
.divider {
    display: flex; align-items: center; gap: 10px;
    color: var(--muted); font-size: 0.68rem;
    font-weight: 800; letter-spacing: 0.15em;
}
.divider::before, .divider::after {
    content: ''; flex: 1; height: 1px; background: var(--line);
}

/* ── Lobby ──────────────────────────────────────────────────── */
.lobby-panel { width: min(440px, 94vw); }
.lobby-header {
    display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.code-display {
    font-family: 'Black Ops One', monospace;
    font-size: 1.4rem; color: var(--lava2);
    letter-spacing: 0.3em;
    text-shadow: 0 0 12px rgba(255,122,0,0.5);
}
.player-list {
    display: grid; gap: 6px;
    min-height: 80px; max-height: 220px; overflow-y: auto;
}
.player-row {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--line); border-radius: 10px;
    padding: 9px 12px; font-size: 0.9rem; font-weight: 600;
}
.player-dot {
    width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}
.player-chain-badge {
    margin-left: auto; font-size: 0.72rem;
    color: var(--lava2); font-weight: 800;
    letter-spacing: 0.06em;
}
.lobby-actions { display: flex; flex-direction: column; gap: 8px; }
body.is-host .client-only { display: none !important; }
body:not(.is-host) .host-only { display: none !important; }
body.solo .online-only { display: none !important; }

/* ── HUD ────────────────────────────────────────────────────── */
#hud { position: fixed; inset: 0; pointer-events: none; z-index: 10; }

#hud-top {
    position: absolute; top: 0; left: 0; right: 0;
    display: flex; justify-content: center; padding: 14px;
}
#lava-warn {
    font-family: 'Black Ops One', monospace;
    font-size: 1rem; letter-spacing: 0.12em;
    color: var(--lava); text-shadow: 0 0 10px #ff4500aa;
    opacity: 0; transition: opacity 0.3s;
}
#lava-warn.visible { opacity: 1; }

#hud-chain {
    position: absolute; bottom: 56px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    min-width: 160px;
}
#chain-label {
    font-size: 0.62rem; font-weight: 800;
    color: var(--muted); letter-spacing: 0.2em;
}
#chain-bar-wrap {
    width: 140px; height: 6px; background: rgba(255,255,255,0.1);
    border-radius: 3px; overflow: hidden;
}
#chain-bar-fill {
    height: 100%; width: 0%;
    border-radius: 3px;
    background: linear-gradient(90deg, #00e070, #ffcc00, #ff4500);
    transition: width 0.08s, filter 0.2s;
}
#chain-bar-fill.danger { filter: drop-shadow(0 0 4px #ff4500); }

#hud-players {
    position: absolute; top: 14px; left: 14px;
    display: flex; flex-direction: column; gap: 5px;
}
.hud-player-row {
    display: flex; align-items: center; gap: 6px;
    background: rgba(10,6,4,0.6); border-radius: 8px;
    padding: 4px 8px; font-size: 0.8rem; font-weight: 600;
    border: 1px solid rgba(255,255,255,0.07);
}
.hud-player-dot { width: 8px; height: 8px; border-radius: 50%; }
.hud-player-dead { opacity: 0.4; text-decoration: line-through; }

#countdown {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    font-family: 'Black Ops One', monospace;
    font-size: clamp(5rem, 20vw, 9rem);
    color: #ffe0c0;
    text-shadow: 0 0 40px #ff4500, 0 0 80px #ff220055;
    pointer-events: none;
}

#hud-height {
    position: absolute; top: 14px; right: 14px;
    background: rgba(10,6,4,0.6); border-radius: 8px;
    padding: 5px 10px; font-size: 0.8rem; font-weight: 700;
    border: 1px solid rgba(255,255,255,0.07);
    display: flex; align-items: baseline; gap: 3px;
}
#height-val { font-size: 1.1rem; color: var(--lava2); font-weight: 900; }
.height-unit { font-size: 0.72rem; color: var(--muted); }

/* Lava overlay at bottom of screen */
#lava-overlay {
    position: fixed; bottom: 0; left: 0; right: 0;
    height: 0; pointer-events: none; z-index: 9;
    background: linear-gradient(to top, rgba(255,60,0,0.55), transparent);
    transition: height 0.2s;
}

/* ── Results ────────────────────────────────────────────────── */
.results-panel { text-align: center; width: min(420px, 94vw); }
#results-title {
    font-size: clamp(1.8rem, 8vw, 2.6rem);
    color: var(--lava2);
    text-shadow: 0 0 20px #ff450066;
}
#results-list {
    list-style: none; padding: 0; margin: 0;
    display: grid; gap: 6px; text-align: left;
}
#results-list li {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--line); border-radius: 10px;
    padding: 9px 14px; font-size: 0.9rem; font-weight: 600;
}
.results-actions { display: flex; gap: 8px; flex-direction: column; }

/* ── Touch ──────────────────────────────────────────────────── */
#touch-controls {
    position: fixed; inset: 0; pointer-events: none; z-index: 15;
}
#joy-zone-l {
    position: absolute; bottom: 30px; left: 30px;
    width: 110px; height: 110px;
    border-radius: 50%;
    background: rgba(255,255,255,0.07);
    border: 2px solid rgba(255,255,255,0.12);
    pointer-events: all; touch-action: none;
}
#btn-jump {
    position: absolute; bottom: 40px; right: 30px;
    width: 70px; height: 70px; border-radius: 50%;
    background: rgba(255,69,0,0.35);
    border: 2px solid rgba(255,120,0,0.5);
    color: #fff; font-size: 1.4rem;
    display: flex; align-items: center; justify-content: center;
    pointer-events: all;
}