@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Sans+TC:wght@300;400;500;600&display=swap');

:root {
  --bg: #f9fcfe;
  --card: #ffffff;
  --line: #d5e4ec;
  --text: #0f171f;
  --muted: #4a6274;
  --accent: #259cca;
  --accent-2: #7ecbe6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans TC", "PingFang TC", system-ui, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 80% 0%, #ceeefe 0%, transparent 45%), var(--bg);
}

.app-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 20%, rgba(37, 156, 202, 0.08), transparent 35%),
    radial-gradient(circle at 90% 70%, rgba(126, 203, 230, 0.07), transparent 30%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.9rem 1.3rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  background: rgba(249, 252, 254, 0.92);
}

.brand {
  font-size: 1.35rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand span,
.brand strong {
  color: var(--accent);
}

.main-nav {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.btn-with-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
}

.btn-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  flex: 0 0 auto;
}

button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(37, 156, 202, 0.12);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.solid-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 500;
}

.solid-btn:hover {
  background: #1e89b5;
  box-shadow: 0 2px 10px rgba(37, 156, 202, 0.3);
}

.ghost-btn {
  background: rgba(226, 241, 250, 0.6);
  border-color: var(--line);
  color: var(--text);
}

.ghost-btn:hover {
  background: rgba(206, 238, 254, 0.5);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.welcome-text {
  color: var(--muted);
  font-size: 0.92rem;
}

.container {
  max-width: 1120px;
  margin: 1rem auto 6rem;
  padding: 0 1rem;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--card);
  margin-bottom: 1rem;
  box-shadow: 0 1px 6px rgba(37, 156, 202, 0.06);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.hero p {
  color: var(--muted);
  font-size: 1rem;
}

.hero-art {
  min-height: 220px;
  border-radius: 1rem;
  background: linear-gradient(140deg, #ceeefe, #e2f1fa);
  position: relative;
  overflow: hidden;
}

.hero-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-actions {
  display: flex;
  gap: 0.5rem;
}

.section-hero {
  width: 21.875%;
  aspect-ratio: 16 / 9;
  border-radius: 0.9rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, #ceeefe, #e2f1fa);
  margin: 0.7rem auto 1rem;
}

.section-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.card,
.panel,
.stack-item,
.auth-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 1rem;
  box-shadow: 0 1px 4px rgba(37, 156, 202, 0.05);
}

.card {
  padding: 0.8rem;
}

.card-title-icon,
.list-title-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
  vertical-align: -3px;
  margin-right: 0.35rem;
}

.thumb {
  height: 110px;
  border-radius: 0.8rem;
  background: linear-gradient(140deg, #ceeefe, #e2f1fa);
  background-size: cover;
  background-position: center;
  margin-bottom: 0.7rem;
}

.muted {
  color: var(--muted);
}

.filters {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 0.7rem;
  margin-bottom: 0.8rem;
}

input,
select {
  width: 100%;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  padding: 0.65rem 0.7rem;
  font: inherit;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 156, 202, 0.15);
}

.stack-list {
  display: grid;
  gap: 0.6rem;
}

.stack-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.8rem;
}

.stack-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

/* ─── Zen page ─── */

.zen-page {
  background: #f0f7fb;
  border: 1px solid #d5e4ec;
  border-radius: 1.4rem;
  padding: 1.2rem;
}

.zen-section-head {
  margin-bottom: 1rem;
}

.zen-section-head h2 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 3.3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.zen-section-head p {
  margin: 0.55rem 0 0;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  color: var(--muted);
}

.zen-filter-block {
  border: 1px solid #d5e4ec;
  border-radius: 1.25rem;
  background: #ffffff;
  padding: 0.85rem 1rem;
  margin-bottom: 0.9rem;
  box-shadow: 0 1px 3px rgba(37, 156, 202, 0.05);
}

.zen-filter-block h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
}

.zen-filters {
  margin-bottom: 0;
}

.zen-page input,
.zen-page select {
  border: 1px solid #d5e4ec;
  background: #f9fcfe;
  color: var(--text);
  border-radius: 0.9rem;
}

.zen-stack-list {
  gap: 0.65rem;
}

.zen-stack-list .stack-item {
  border: 1px solid #d5e4ec;
  border-radius: 1.2rem;
  background: #ffffff;
  padding: 0.95rem 1rem;
  box-shadow: 0 1px 4px rgba(37, 156, 202, 0.05);
}

.zen-stack-list .stack-item h3 {
  margin: 0;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--text);
}

.zen-stack-list .stack-item p {
  margin: 0.28rem 0 0;
  font-size: 1rem;
  color: var(--muted);
}

.med-list-main {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.85rem;
  align-items: center;
}

.med-list-cover {
  width: 120px;
  height: 76px;
  border-radius: 0.7rem;
  background: linear-gradient(140deg, #ceeefe, #e2f1fa);
  border: 1px solid #d5e4ec;
  background-size: cover;
  background-position: center;
}

.zen-stack-list .stack-actions button {
  min-width: 96px;
  border-radius: 999px;
  border: 1px solid #d5e4ec;
  background: #f0f7fb;
  color: var(--text);
  font-family: inherit;
}

.zen-stack-list .stack-actions button[data-action="play"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.zen-stack-list .stack-actions button[data-action="play"]:hover {
  background: #1e89b5;
}

.zen-breathing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-bottom: 0.95rem;
}

.zen-breathing-stage {
  position: relative;
  min-height: 400px;
  padding: 4.2rem 1rem 1rem;
  border: 1px solid #d5e4ec;
  border-radius: 1.5rem;
  background: #ffffff;
  overflow: visible;
  box-shadow: 0 1px 6px rgba(37, 156, 202, 0.06);
}

.zen-breathing-stage::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 56%;
  width: min(74%, 640px);
  aspect-ratio: 16 / 9;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  border: 3px solid var(--accent-2);
  background: rgba(206, 238, 254, 0.4);
}

.zen-center-btn {
  position: absolute;
  left: 50%;
  top: -21px;
  transform: translateX(-50%);
  min-width: 170px;
}

.zen-breathing-stage .circle {
  position: absolute;
  left: 50%;
  top: 56%;
  transform: translate(-50%, -50%) scale(1);
  width: min(280px, 60vw);
  height: min(200px, 44vw);
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-size: clamp(2.1rem, 5vw, 3rem);
  z-index: 2;
}

.zen-breathing-stage .circle.expand {
  transform: translate(-50%, -50%) scale(1.12);
}

.zen-breathing-stage #breathingHint {
  position: absolute;
  bottom: 0.45rem;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  font-size: 1.95rem;
  color: var(--muted);
}

.zen-article-filters {
  grid-template-columns: 2fr 1fr 0.55fr;
}

.admin-med-cover {
  width: 180px;
  height: 102px;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, #ceeefe, #e2f1fa);
  background-size: cover;
  background-position: center;
  margin-top: 0.45rem;
}

.player-wrap {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow: 0 1px 6px rgba(37, 156, 202, 0.06);
}

.player-cover {
  width: min(350px, 80vw);
  height: min(260px, 50vw);
  margin: 0 auto;
  border-radius: 1rem;
  background: linear-gradient(160deg, #7ecbe6, #ceeefe);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.progress-wrap {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.player-controls,
.player-tools {
  margin-top: 0.7rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.status-text {
  color: var(--muted);
  margin-top: 0.6rem;
}

.breathing-config {
  display: flex;
  gap: 0.8rem;
  align-items: end;
  flex-wrap: wrap;
}

.breathing-stage {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  background: var(--card);
  text-align: center;
}

.circle {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.7rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform 0.8s ease;
}

.circle.expand {
  transform: scale(1.18);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.7rem;
}

.panel {
  padding: 0.85rem;
}

.plain-list {
  margin: 0;
  padding-left: 1rem;
}

.auth-card {
  max-width: 480px;
  margin: 0 auto;
  padding: 1rem;
}

.auth-form {
  display: grid;
  gap: 0.55rem;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
}

.admin-inline-form {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.7fr 0.8fr 1.4fr auto;
  gap: 0.6rem;
  align-items: center;
}

.stack-actions select {
  min-width: 120px;
}

.stack-actions input[type="number"] {
  width: 86px;
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(249, 252, 254, 0.95);
  backdrop-filter: blur(8px);
  padding: 0.4rem;
}

.bottom-nav button {
  border-radius: 0.7rem;
}

.hidden {
  display: none;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .filters {
    grid-template-columns: 1fr;
  }

  .zen-breathing-grid {
    grid-template-columns: 1fr;
  }

  .zen-article-filters {
    grid-template-columns: 1fr;
  }

  .zen-stack-list .stack-item {
    grid-template-columns: 1fr;
  }

  .med-list-main {
    grid-template-columns: 1fr;
  }

  .med-list-cover {
    width: 100%;
    height: 140px;
  }

  .zen-stack-list .stack-actions {
    margin-top: 0.4rem;
  }

  .zen-breathing-stage {
    min-height: 330px;
  }

  .zen-breathing-stage #breathingHint {
    font-size: 1.5rem;
  }

  .admin-inline-form {
    grid-template-columns: 1fr;
  }

  .main-nav {
    display: none;
  }

  .bottom-nav {
    display: grid;
  }
}