/* mobile.css — CUBE GAME Responsive Design */
/* Covers: Phone, Tablet, Laptop, Desktop, PC */

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

:root {
  --cyan:   #67d7f0;
  --green:  #a6e02c;
  --orange: #fe9522;
  --muted:  rgba(255,255,255,0.35);
  --border: rgba(103,215,240,0.15);
}

html, body {
  min-height: 100vh;
  background: radial-gradient(ellipse at top, #1a3a52 0%, #0d1b26 60%);
  font-family: 'Share Tech Mono', monospace;
  color: #fff;
  overflow-x: hidden;
}

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

/* ── Layout ────────────────────────────────────────────────────────────── */
.mobile-wrap {
  position: relative; z-index: 1;
  max-width: 600px; margin: 0 auto;
  padding: 0 16px 40px;
  animation: wrapIn 0.5s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes wrapIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Header ────────────────────────────────────────────────────────────── */
.mobile-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0; border-bottom: 1px solid var(--border); margin-bottom: 24px;
}
.back-btn { color: var(--muted); text-decoration: none; font-size: 0.78rem; letter-spacing: 0.1em; transition: color 0.2s; }
.back-btn:hover { color: var(--cyan); }
.mobile-logo { width: 100px; height: auto; }

/* ── Title ─────────────────────────────────────────────────────────────── */
.mobile-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.4rem, 5vw, 2rem); font-weight: 900;
  letter-spacing: 0.12em; color: var(--cyan);
  text-shadow: 0 0 30px rgba(103,215,240,0.5);
  text-align: center; margin-bottom: 24px;
  position: static; top: auto;
}

/* ── Card ──────────────────────────────────────────────────────────────── */
.mobile-card {
  background: linear-gradient(160deg, #112233, #0a1820);
  border: 1px solid var(--border); border-radius: 16px;
  overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.mobile-section { border-bottom: 1px solid rgba(255,255,255,0.06); }
.mobile-section:last-of-type { border-bottom: none; }
.mobile-section-header { display: flex; align-items: center; gap: 10px; padding: 16px 20px 12px; }
.mobile-section-icon { font-size: 1.1rem; }
.mobile-section-label { font-size: 0.72rem; letter-spacing: 0.15em; color: var(--muted); }
.mobile-section-body { padding: 0 20px 16px; display: flex; flex-direction: column; gap: 12px; }

/* ── Control rows ──────────────────────────────────────────────────────── */
.control-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.control-row:last-child { border-bottom: none; }
.control-icon { font-size: 1.2rem; flex-shrink: 0; }
.control-info { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.control-name { font-size: 0.82rem; color: rgba(255,255,255,0.85); letter-spacing: 0.05em; }
.control-desc { font-size: 0.65rem; color: var(--muted); letter-spacing: 0.03em; line-height: 1.4; }

/* ── Toggle ────────────────────────────────────────────────────────────── */
.toggle { position: relative; width: 48px; height: 26px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; inset: 0; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 26px; cursor: pointer; transition: all 0.25s; }
.toggle-slider::before { content: ""; position: absolute; left: 4px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: rgba(255,255,255,0.4); transition: all 0.25s; }
.toggle input:checked + .toggle-slider { background: rgba(103,215,240,0.25); border-color: rgba(103,215,240,0.6); }
.toggle input:checked + .toggle-slider::before { transform: translateX(22px); background: var(--cyan); box-shadow: 0 0 8px rgba(103,215,240,0.5); }

/* ── How grid ──────────────────────────────────────────────────────────── */
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.how-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: 14px 12px; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; transition: border-color 0.2s; }
.how-card:hover { border-color: rgba(103,215,240,0.25); }
.how-icon { font-size: 1.8rem; }
.how-text { font-size: 0.68rem; color: rgba(255,255,255,0.55); letter-spacing: 0.04em; line-height: 1.4; }

/* ── Save button ───────────────────────────────────────────────────────── */
.save-btn { display: block; width: calc(100% - 40px); margin: 20px; padding: 13px; background: linear-gradient(135deg, rgba(103,215,240,0.25), rgba(166,224,44,0.2)); border: 1px solid rgba(103,215,240,0.5); border-radius: 10px; color: #fff; font-family: 'Share Tech Mono', monospace; font-size: 0.9rem; font-weight: bold; letter-spacing: 0.1em; cursor: pointer; transition: all 0.2s; }
.save-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(103,215,240,0.25); }
.save-btn::before { display: none; }

/* ── Toast ─────────────────────────────────────────────────────────────── */
#mobileToast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(10px); background: linear-gradient(135deg, #1e3a4a, #0f2230); border: 1px solid rgba(103,215,240,0.4); border-radius: 10px; padding: 10px 22px; font-family: monospace; font-size: 0.82rem; color: var(--cyan); letter-spacing: 0.06em; z-index: 10000; opacity: 0; visibility: hidden; transition: all 0.3s; white-space: nowrap; }
#mobileToast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE GAME STYLES — applied on index.html for ALL devices
   ══════════════════════════════════════════════════════════════════════════ */

/* Touch trail */
.touch-trail { position: fixed; pointer-events: none; z-index: 9998; border-radius: 50%; background: rgba(103,215,240,0.6); transform: translate(-50%, -50%); animation: trailFade 0.3s ease forwards; }
@keyframes trailFade { from { opacity: 0.8; width: 12px; height: 12px; } to { opacity: 0; width: 4px; height: 4px; } }

/* Orientation warning */
#orientWarning { position: fixed; inset: 0; z-index: 999999; background: rgba(0,0,0,0.92); display: none; flex-direction: column; align-items: center; justify-content: center; gap: 20px; font-family: monospace; text-align: center; padding: 20px; }
#orientWarning.show { display: flex; }
#orientWarning .orient-icon { font-size: 4rem; animation: rotatePulse 1.5s ease-in-out infinite; }
@keyframes rotatePulse { 0% { transform: rotate(0deg); } 50% { transform: rotate(90deg); } 100% { transform: rotate(0deg); } }
#orientWarning p { font-size: 1rem; color: rgba(255,255,255,0.7); letter-spacing: 0.08em; line-height: 1.6; }

/* ── 📱 Phone (max 480px) ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .hud__score       { font-size: calc(16px + 4vw) !important; }
  .pause-btn        { font-size: calc(16px + 4vw) !important; }
  .yt-btn, .shop-btn, .sound-hud-btn { font-size: calc(12px + 3vw) !important; }
  button            { font-size: 1.4rem !important; padding: 12px 20px !important; width: 220px !important; }
  h1                { font-size: 2.5rem !important; }
  .heart            { font-size: clamp(22px, 7vw, 30px) !important; }
  #compTimerEl      { font-size: clamp(1.6rem, 7vw, 2.2rem) !important; }
  .hud__actions     { padding-right: max(0.5em, env(safe-area-inset-right)) !important; }
  .hud__score       { padding-left:  max(0.5em, env(safe-area-inset-left))  !important; }
}

/* ── 📟 Tablet (481px–1024px) ──────────────────────────────────────────── */
@media (min-width: 481px) and (max-width: 1024px) {
  .hud__score       { font-size: calc(14px + 2.5vw) !important; }
  .pause-btn        { font-size: calc(14px + 2.5vw) !important; }
  button            { font-size: 1.5rem !important; padding: 13px 22px !important; width: 230px !important; }
  h1                { font-size: 3rem !important; }
  .heart            { font-size: clamp(22px, 5vw, 32px) !important; }
}

/* ── 💻 Laptop (1025px–1440px) ─────────────────────────────────────────── */
@media (min-width: 1025px) and (max-width: 1440px) {
  .hud__score       { font-size: calc(12px + 1.8vw) !important; }
  button            { font-size: 1.4rem !important; }
}

/* ── 🖥️ Desktop / PC (1441px+) ────────────────────────────────────────── */
@media (min-width: 1441px) {
  .hud__score       { font-size: calc(10px + 1.4vw) !important; }
  button            { font-size: 1.6rem !important; width: 220px !important; }
  h1                { font-size: 5rem !important; }
}

/* ── Safe area (notch phones) ──────────────────────────────────────────── */
@supports (padding: max(0px)) {
  .hud__actions { padding-right: max(0.65em, env(safe-area-inset-right)); }
  .hud__score   { padding-left:  max(0.65em, env(safe-area-inset-left)); }
}