* { box-sizing: border-box; }
:root { --accent:#ff5e00; --accent2:#06458f; }

html[data-theme="auto"], html[data-theme="light"], html[data-theme="dark"] { color-scheme: light dark; }
html[data-theme="auto"] body { background: #f7f7f5; color: #111111; }
@media (prefers-color-scheme: dark) { html[data-theme="auto"] body { background: #0b0b0b; color: #f5f5f5; } }
html[data-theme="light"] body { background: #f7f7f5; color: #111111; }
html[data-theme="dark"] body { background: #0b0b0b; color: #f5f5f5; }

body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
header, footer { padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; }
header { border-bottom: 1px solid rgba(0,0,0,.1); }
html[data-theme="dark"] header { border-bottom-color: rgba(255,255,255,.1); }
footer { border-top: 1px solid rgba(0,0,0,.1); gap: 12px; }
html[data-theme="dark"] footer { border-top-color: rgba(255,255,255,.1); }
footer .footer-link { color: inherit; text-decoration: none; opacity: .8; }
footer .footer-link:hover { text-decoration: underline; opacity: 1; }

h1 { margin: 0; font-size: 1rem; }
.right { display:flex; align-items:center; gap: 8px; }
#installBtn, #shareBtn { padding: 8px 12px; border-radius: 12px; border: 1px solid var(--accent2); background: var(--accent2); color: #fff; cursor: pointer; transition: background-color .2s, border-color .2s, box-shadow .2s; }
#installBtn:hover, #shareBtn:hover { background: var(--accent); border-color: var(--accent); box-shadow: 0 6px 18px rgba(255,94,0,.25); }
html[data-theme="dark"] #installBtn, html[data-theme="dark"] #shareBtn { background: var(--accent2); border-color: var(--accent2); color: #fff; }

.lang-toggle { display:inline-flex; background: rgba(0,0,0,.05); border-radius: 999px; padding: 2px; }
html[data-theme="dark"] .lang-toggle { background: rgba(255,255,255,.08); }
.lang-toggle button { padding: 6px 10px; border-radius: 999px; border: 0; background: transparent; cursor:pointer; font-size: .85rem; }
.lang-toggle button.active { background: var(--accent); color: white; }

main { padding: 24px 16px 48px; max-width: 720px; margin: 0 auto; }
figure#artwork { margin: 8px auto 16px; width: 260px; height: 260px; border-radius: 24px; overflow: hidden; border: 1px solid rgba(0,0,0,.08); transition: border-color .2s ease, box-shadow .3s ease; display: grid; place-items: center; perspective: 1100px; }
html[data-theme="dark"] figure#artwork { border-color: rgba(255,255,255,.08); }
figure#artwork img { width: 100%; height: 100%; object-fit: cover; background: #fff; transition: transform .2s ease, filter .2s ease; transform-origin: center; transform-style: preserve-3d; backface-visibility: hidden; animation: coverFlipIn 2s cubic-bezier(.33,1,.68,1) backwards; will-change: transform, opacity; }

@keyframes coverFlipIn {
  0% { transform: rotateY(-720deg) scale(.15); opacity: 0; }
  50% { transform: rotateY(-270deg) scale(1.05); opacity: 1; }
  85% { transform: rotateY(-20deg) scale(1); opacity: 1; }
  99% { transform: rotateY(0deg) scale(1); opacity: 1; }
  100% { transform: none; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  figure#artwork { perspective: none; }
  figure#artwork img { animation: none; transform: none; opacity: 1; }
}

#now { text-align: center; margin: 0 0 16px; opacity: .9; }
.controls { display:flex; gap:10px; justify-content:center; }
.controls button { padding: 12px 16px; min-width: 96px; font-size: 1rem; border-radius: 14px; border: 1px solid #ccc; background: white; color: #111; cursor: pointer; transition: background-color .2s, border-color .2s; }
html[data-theme="dark"] .controls button { background: #1a1a1a; color: #f5f5f5; border-color: #333; }
.controls button:hover { background: rgba(255,94,0,.13); border-color: rgba(255,94,0,.3); }
.controls button[disabled]:not(.playing) { opacity: .6; cursor:not-allowed; }
.controls #play.playing { background: var(--accent); color: #fff; border-color: var(--accent); opacity: 1; cursor: default; box-shadow: 0 10px 25px rgba(255,94,0,.35); }
.controls #play.playing:hover { background: var(--accent); border-color: var(--accent); }
figure#artwork.playing { border-color: rgba(255,94,0,.6); box-shadow: 0 12px 35px rgba(255,94,0,.28); }
figure#artwork.playing img { transform: scale(1.01); filter: saturate(1.05); }
.tip { text-align:center; opacity: .7; }

.sleep-timer { margin: 24px auto 0; display:flex; flex-direction:column; align-items:center; gap: 10px; text-align:center; font-size: .95rem; }
.sleep-timer-label { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent2); opacity: .75; }
html[data-theme="dark"] .sleep-timer-label { color: var(--accent); }
.sleep-timer-controls { display:flex; align-items:center; justify-content:center; gap: 14px; padding: 10px 18px; border-radius: 18px; background: rgba(6,69,143,.08); box-shadow: 0 12px 28px rgba(6,69,143,.12); flex-wrap: wrap; }
html[data-theme="dark"] .sleep-timer-controls { background: rgba(6,69,143,.18); box-shadow: 0 12px 28px rgba(0,0,0,.45); }
.sleep-toggle { min-width: 126px; padding: 10px 18px; border-radius: 14px; border: 1px solid var(--accent2); background: white; color: var(--accent2); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; cursor: pointer; transition: background-color .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease; }
html[data-theme="dark"] .sleep-toggle { background: #0f0f0f; color: var(--accent2); }
.sleep-toggle.is-on { background: var(--accent2); color: #fff; box-shadow: 0 10px 26px rgba(6,69,143,.35); }
.sleep-toggle:hover { border-color: var(--accent); color: var(--accent); }
.sleep-toggle.is-on:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.sleep-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sleep-options { display:flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.sleep-option { padding: 10px 14px; border-radius: 12px; border: 1px solid rgba(6,69,143,.28); background: rgba(255,255,255,.92); color: inherit; font-weight: 500; cursor: pointer; transition: background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease; }
html[data-theme="dark"] .sleep-option { background: rgba(20,20,20,.92); border-color: rgba(255,255,255,.15); }
.sleep-option.is-selected { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(255,94,0,.28); }
.sleep-option:hover { border-color: var(--accent2); }
.sleep-option:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }
.timer-status { min-width: 160px; text-align: center; opacity: .8; transition: color .2s ease, opacity .2s ease; }
.timer-status.is-active { opacity: 1; color: var(--accent2); font-weight: 600; }
html[data-theme="dark"] .timer-status.is-active { color: var(--accent); }

.static-page { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; line-height: 1.6; }
.static-page .page-title { font-size: 1.6rem; margin-bottom: 12px; }
.static-page .section-title { font-size: 1.1rem; margin-top: 20px; margin-bottom: 8px; }
.static-page section { margin-bottom: 24px; }
.static-page .lang-note { font-size: .9rem; opacity: .8; }
.static-page .back-link { display: inline-block; margin-bottom: 16px; text-decoration: none; color: var(--accent2); }
.static-page .back-link:hover { text-decoration: underline; }

/* Install popup */
.popup { position: fixed; inset: 0; display: grid; place-items: center; background: rgba(0,0,0,.4); backdrop-filter: blur(2px); }
.popup[hidden] { display: none; }
.popup-card { width: min(520px, calc(100% - 32px)); background: inherit; }
.popup-card { background: white; color: #111; border-radius: 16px; padding: 20px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
html[data-theme="dark"] .popup-card { background: #171717; color: #f5f5f5; }
.app-icon { width: 48px; height: 48px; border-radius: 10px; }
.popup-card h2 { margin: 10px 0 6px; font-size: 1.2rem; }
.popup-actions { display:flex; gap:10px; margin-top: 12px; }
.popup-actions button { padding: 10px 14px; border-radius: 10px; border: 1px solid #ccc; background: var(--accent); color: #fff; cursor:pointer; }
.popup-actions .ghost { background: transparent; color: inherit; }
.ios-hint { margin-top: 8px; opacity: .8; font-size: .95rem; }