:root {
  --bg0: #eef3f0;
  --bg1: #d9e6de;
  --ink: #14241c;
  --muted: #4a6356;
  --accent: #1a4d3e;
  --accent-2: #2f7a61;
  --danger: #9b2c2c;
  --card: rgba(255, 255, 255, 0.78);
  --line: rgba(20, 36, 28, 0.12);
  --ok: #1f7a4c;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", "SF Pro Text", "Helvetica Neue", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 500px at 8% -10%, #f7fff9 0%, transparent 55%),
    linear-gradient(165deg, var(--bg0), var(--bg1));
  padding-bottom: 7rem;
}

#app {
  max-width: 820px;
  margin: 0 auto;
  padding: 1.2rem 1.1rem 2rem;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}

.brand {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.2rem;
}
.sep { color: var(--muted); margin: 0 0.35rem; }
.page { color: var(--muted); font-weight: 600; }

.top-right {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.chip {
  font-size: 0.85rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
}

.link, .linkish {
  color: var(--accent);
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  width: auto;
}

.panel, .tab-panel > .toolbar, .day, .users-form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.2rem;
  backdrop-filter: blur(8px);
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.sub {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.95rem;
}

label {
  display: block;
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
  color: var(--muted);
}

input {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.7rem 0.8rem;
  border-radius: 0.65rem;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 1rem;
  color: var(--ink);
}

button, .btn {
  appearance: none;
  border: 0;
  border-radius: 0.75rem;
  padding: 0.75rem 0.95rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #f4fff9;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

button.ghost, .btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

button.small, .btn.small {
  padding: 0.45rem 0.65rem;
  font-size: 0.82rem;
  width: auto;
}

button.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(155, 44, 44, 0.35);
}

.error { color: var(--danger); margin: 0.75rem 0 0; font-size: 0.9rem; }
.msg { margin: 0.9rem 0 0; color: var(--ok); font-weight: 600; }
.msg.bad { color: var(--danger); }
.hidden { display: none !important; }

.tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.tab {
  width: auto;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.tab.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.toolbar button { width: auto; }

.days { display: grid; gap: 1rem; }

.day-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.day-head h2 {
  margin: 0;
  font-size: 1.1rem;
}

.day-meta {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 0.2rem;
}

.session {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0 0.2rem;
}

.session:first-of-type { border-top: 0; padding-top: 0; }

.session-top {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.65rem;
}

.session-title {
  font-weight: 700;
}

.session-sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 0.15rem;
}

.tracks {
  display: grid;
  gap: 0.45rem;
}

.track {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.55rem 0.65rem;
  border-radius: 0.65rem;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
}

.track-actions {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.session-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.65rem;
}

.users-form {
  display: grid;
  gap: 1rem;
}

.tab-panel .panel code {
  font-size: 0.88em;
  background: rgba(255, 255, 255, 0.7);
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
}

.tab-panel .btn {
  width: auto;
  margin-top: 0.75rem;
}

.user-card {
  padding: 0.9rem;
  border-radius: 0.8rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.user-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
}

.role-tag {
  display: inline-block;
  margin-left: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(26, 77, 62, 0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
}

.player-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 1.1rem;
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(10px);
  z-index: 20;
}

.player-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.player-meta strong {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-meta span {
  color: var(--muted);
  font-size: 0.82rem;
}

#player {
  width: min(420px, 48vw);
  height: 2.2rem;
}

.empty {
  color: var(--muted);
  padding: 1rem 0;
}

@media (max-width: 700px) {
  .player-bar {
    grid-template-columns: 1fr;
  }
  #player { width: 100%; }
}