/* White Noise / Rain — calming dark soft theme */

:root {
  --bg: #1a1f2e;
  --bg-card: #242b3d;
  --bg-elevated: #2c3448;
  --text: #e8ecf4;
  --text-muted: #9aa3b8;
  --accent: #6b9fff;
  --accent-soft: rgba(107, 159, 255, 0.18);
  --accent-hover: #8bb3ff;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(107, 159, 255, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(90, 140, 200, 0.06), transparent);
}

/* Header */
.site-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(26, 31, 46, 0.85);
}

.header-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.lang-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.lang-btn:hover,
.lang-btn:focus-visible {
  background: var(--accent-soft);
  border-color: var(--accent);
  outline: none;
}

/* Main */
.main {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.tagline {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  text-align: center;
  font-size: 1rem;
}

/* Play button */
.sound-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.play-btn {
  appearance: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-width: 160px;
  min-height: 56px;
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #0f1420;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(107, 159, 255, 0.35);
}

.play-btn:hover,
.play-btn:focus-visible {
  background: var(--accent-hover);
  outline: none;
}

.play-btn:active {
  transform: scale(0.97);
}

.play-btn[aria-pressed="true"] {
  background: #5a8aef;
  box-shadow: 0 0 0 3px var(--accent-soft), 0 4px 24px rgba(107, 159, 255, 0.4);
}

.play-btn[aria-pressed="true"] .play-icon {
  /* pause bars look */
}

.play-icon {
  font-size: 0.95rem;
  line-height: 1;
}

/* Volume */
.volume-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  max-width: 320px;
}

.volume-row label {
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.volume-row input[type="range"] {
  flex: 1;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: var(--bg-elevated);
  outline: none;
  cursor: pointer;
}

.volume-row input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.volume-row input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.volume-value {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 2.5rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* Sound type radios */
.sound-type {
  border: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sound-type legend {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding: 0;
}

.radio-card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 0.75rem;
  row-gap: 0.1rem;
  align-items: center;
  padding: 0.85rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.radio-card:hover {
  border-color: rgba(107, 159, 255, 0.35);
}

.radio-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.radio-card input {
  grid-row: 1 / 3;
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
  cursor: pointer;
}

.radio-label {
  font-weight: 600;
  font-size: 0.95rem;
}

.radio-desc {
  grid-column: 2;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Info */
.info h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.info ul {
  margin: 0;
  padding-inline-start: 1.25rem;
  color: var(--text-muted);
}

.info li {
  margin-bottom: 0.4rem;
}

.info li:last-child {
  margin-bottom: 0;
}

/* Ad slots — hidden when empty (comments only in HTML) */
.ad-slot {
  display: none;
  min-height: 0;
  overflow: hidden;
}

.ad-slot:not(:empty) {
  display: block;
  min-height: 90px;
  text-align: center;
  margin: 0.25rem 0;
}

/* Footer */
.site-footer {
  padding: 1.25rem;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 0;
}

/* LTR when English */
html[dir="ltr"] .volume-value {
  text-align: center;
}

/* Mobile */
@media (max-width: 480px) {
  .logo {
    font-size: 1.1rem;
  }

  .card {
    padding: 1.25rem;
  }

  .play-btn {
    width: 100%;
    max-width: 280px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

/* ---- Mixer / share ---- */
.mix-banner { margin: 0; padding: .75rem 1rem; border-radius: 12px; background: var(--accent-soft); border: 1px solid var(--accent); text-align: center; font-weight: 600; }
.mixer h2 { margin: 0 0 1rem; font-size: 1.1rem; }
.mix-row { display: flex; align-items: center; gap: .75rem; margin-bottom: .75rem; }
.mix-row label { min-width: 6.5rem; font-size: .9rem; color: var(--text-muted); }
.mix-row input[type=range] { flex: 1; accent-color: var(--accent); }
.mix-row input[type=text] { flex: 1; padding: .55rem .75rem; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text); font: inherit; }
.share-row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-top: .5rem; }
.share-btn { appearance: none; border: 1px solid var(--accent); background: var(--accent-soft); color: var(--text); padding: .55rem 1rem; border-radius: 999px; font: inherit; font-size: .9rem; cursor: pointer; text-decoration: none; }
.share-btn.wa { border-color: #25d366; background: rgba(37,211,102,.15); }
.share-msg { font-size: .85rem; color: var(--text-muted); }
/* Landing pages */
.lp h1 { font-size: 1.5rem; margin: 0 0 .5rem; line-height: 1.3; }
.lp .lead { color: var(--text-muted); margin: 0 0 1.25rem; }
.lp .big-play { margin: 0 auto; }
.lp-text p, .faq p { color: var(--text-muted); }
.faq h3 { font-size: 1rem; margin: 1rem 0 .25rem; }
.links ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.links a { display: inline-block; padding: .4rem .8rem; border-radius: 999px; background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text); text-decoration: none; font-size: .9rem; }
.links a:hover { border-color: var(--accent); }
.site-header a.logo { color: inherit; text-decoration: none; }
/* Baby mode */
body.baby { background: #000; }
.baby-wrap { max-width: 520px; margin: 0 auto; padding: 1.5rem 1.25rem; display: flex; flex-direction: column; gap: 1.25rem; flex: 1; }
.brand { display: flex; align-items: center; gap: .75rem; justify-content: center; text-align: center; flex-direction: column; }
.brand img { max-width: 140px; max-height: 80px; object-fit: contain; border-radius: 8px; }
.brand .bname { font-size: 1.2rem; font-weight: 700; }
.brand .bcontact a { color: var(--accent); }
.timer-row { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.timer-row button[aria-pressed=true] { background: var(--accent); color: #0f1420; }
.night { position: fixed; inset: 0; background: #000; z-index: 50; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; color: #333; }
.night button { background: transparent; border: 1px solid #222; color: #444; padding: .6rem 1.2rem; border-radius: 999px; font: inherit; }
.powered { text-align: center; font-size: .75rem; color: #555; }
.powered a { color: #777; }
.gen label { display: block; margin: .75rem 0 .25rem; font-size: .9rem; color: var(--text-muted); }
.gen input { width: 100%; padding: .55rem .75rem; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text); font: inherit; }
.gen output { display: block; word-break: break-all; margin-top: 1rem; padding: .75rem; background: var(--bg-elevated); border-radius: 10px; direction: ltr; text-align: left; }
[hidden] { display: none !important; }