:root {
  --bg: radial-gradient(
      1200px 800px at 10% 10%,
      rgba(82, 0, 255, 0.25),
      transparent 60%
    ),
    radial-gradient(
      900px 600px at 90% 20%,
      rgba(0, 225, 255, 0.2),
      transparent 60%
    ),
    radial-gradient(
      1000px 800px at 30% 90%,
      rgba(255, 0, 128, 0.18),
      transparent 60%
    ),
    linear-gradient(135deg, #0b0f1a, #05070d);
  --glass: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
  --text: #e8edf8;
  --muted: #aab3c8;
  --glow-1: 0 0 32px rgba(82, 0, 255, 0.35), 0 0 64px rgba(0, 225, 255, 0.25);
  --glow-2: 0 0 10px rgba(0, 225, 255, 0.6);
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  background: var(--bg) fixed;
  background-size: cover;
}

.app-header {
  padding: 24px;
  display: grid;
  gap: 12px;
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

h1 {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-shadow: var(--glow-1);
}

#greeting {
  font-size: 1.4rem;
  text-align: left;
  color: #fff;
}

#greeting .time {
  color: #7df9ff;
  font-weight: 600;
  text-shadow: 0 0 10px rgba(125, 249, 255, 0.6);
}

#greeting .activity {
  color: #ffb3ec;
  font-weight: 600;
  text-shadow: 0 0 10px rgba(255, 179, 236, 0.6);
}

.date-greeting {
  display: flex;
  gap: 16px;
  font-weight: 600;
  color: var(--muted);
}

.search-row {
  display: flex;
  gap: 8px;
}
.search-row input {
  flex: 1;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  outline: none;
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.25);
}
.glow-btn {
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(
    135deg,
    rgba(82, 0, 255, 0.5),
    rgba(0, 225, 255, 0.4)
  );
  box-shadow: var(--glow-2);
  color: white;
  font-weight: 700;
  cursor: pointer;
}
.glow-btn:hover {
  transform: translateY(-1px);
}

.main-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 18px;
  padding: 18px;
}

.sidebar {
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
  background: var(--glass);
  box-shadow: var(--glow-1);
  overflow: auto;
  max-height: calc(100vh - 160px);
}
.sidebar h2 {
  margin: 4px 0 12px;
}
.mentor-list {
  display: grid;
  gap: 8px;
}
.mentor-item {
  position: relative;
  min-height: 44px;
  text-align: left;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  align-items: center;
}
.mentor-item {
  position: relative;
  min-height: 44px;
}
.mentor-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--panel);
  filter: saturate(0.8) brightness(1.1);
}

.mentor-item:hover {
  background: rgba(255, 255, 255, 0.07);
}
.mentor-item img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  object-position: 50% 0%; /* top-centred focus */
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--glow-1);
  flex-shrink: 0;
  margin-right: 8px;
  vertical-align: middle;
}

.content {
  display: grid;
}
.glass {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--glow-1);
}

.mentor-header {
  display: flex;
  gap: 14px;
  align-items: center;
}

.mentor-photo {
  width: 250px;
  height: 300px;
  object-fit: cover;
  object-position: top center;
  border-radius: 16px;
  box-shadow: var(--glow-2);
  border: 1px solid var(--border);
}

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

.quote {
  margin: 12px 0 18px;
  padding-left: 12px;
  border-left: 2px solid rgba(0, 225, 255, 0.4);
  font-style: italic;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.info-grid h3 {
  margin: 6px 0;
}

.schedule {
  margin-top: 16px;
}
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.time-block {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  min-height: 64px;
  outline: none;
}
.time-block:focus {
  box-shadow: var(--glow-2);
}

.schedule-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}
.source-link {
  color: #85e6ff;
  text-decoration: none;
}
.source-link:hover {
  text-decoration: underline;
}

.footer {
  padding: 16px;
  text-align: center;
  color: var(--muted);
}
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  .info-grid {
    grid-template-columns: 1fr;
  }
  .schedule-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Text to speech toolbar */
.tts-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 8px 0 16px;
}
.tts-row select,
.tts-row input[type="range"] {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
}
.tts-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 600;
}

.mentor-item.is-active {
  outline: 2px solid rgba(0, 225, 255, 0.5);
  box-shadow: var(--glow-2);
}