* {
  box-sizing: border-box;
}

:root {
  --bg: #0b1220;
  --panel: #111827;
  --panel-2: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #14b8a6;
  --success: #22c55e;
  --warning: #eab308;
  --danger: #ef4444;
  --border: #1f2937;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 30px;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.navbar-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

.badge {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
  font-size: 12px;
  border-radius: 999px;
  padding: 2px 8px;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--muted);
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.12);
}

.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 18px;
  margin-top: 20px;
}

.sidebar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
  height: fit-content;
}

.sidebar h4 {
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar a {
  display: block;
  padding: 10px;
  border-radius: 10px;
  color: var(--muted);
  transition: 0.2s ease;
}

.sidebar a:hover {
  color: var(--text);
  background: var(--panel-2);
}

.sidebar a.active {
  color: var(--text);
  border: 1px solid rgba(20, 184, 166, 0.3);
  background: rgba(20, 184, 166, 0.12);
}

.content {
  background: rgba(17, 24, 39, 0.5);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
}

.grid {
  display: grid;
  gap: 14px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.btn {
  background: var(--accent);
  color: #022c22;
  border: none;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(20, 184, 166, 0.25);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.select-base {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  padding: 10px 34px 10px 12px;
  cursor: pointer;
  outline: none;
}

.select-wrap {
  position: relative;
}

.select-wrap::after {
  content: "▾";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.btn-danger {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.5);
  color: #fecaca;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  color: var(--muted);
  font-size: 14px;
}

.field input,
.field select,
.field textarea {
  background: #0b1220;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
}

.timeline {
  border-left: 2px solid var(--border);
  margin-left: 6px;
  padding-left: 16px;
}

.timeline-item {
  position: relative;
  margin: 0 0 14px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
}

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

.hero {
  text-align: center;
  padding: 40px 12px;
}

.hero h1 {
  font-size: 44px;
  margin: 8px 0 12px;
}

.hero-landing {
  margin-top: 18px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: center;
  background: radial-gradient(circle at top right, rgba(20, 184, 166, 0.16), rgba(17, 24, 39, 1) 48%);
}

.hero-kicker {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.hero-landing h1 {
  margin: 0 0 12px;
  font-size: 42px;
  line-height: 1.15;
}

.hero-actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-illustration {
  background: linear-gradient(145deg, rgba(20, 184, 166, 0.14), rgba(34, 197, 94, 0.05));
  border: 1px solid rgba(20, 184, 166, 0.25);
  border-radius: 18px;
  min-height: 240px;
  display: grid;
  place-items: center;
  padding: 12px;
}

.hero-illustration svg {
  width: 100%;
  max-width: 320px;
  height: auto;
}

.section-block {
  margin-top: 20px;
}

.section-block h2 {
  margin: 0 0 12px;
}

.homepage-features .card,
.testimonials-home .card {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.homepage-features .card:hover,
.testimonials-home .card:hover {
  transform: translateY(-3px);
  border-color: rgba(20, 184, 166, 0.35);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.3);
}

.doctor-card-home {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.doctor-card-home:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 184, 166, 0.4);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.34);
}

.doctor-avatar-home {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  object-fit: cover;
  margin-bottom: 8px;
  border: 2px solid rgba(20, 184, 166, 0.3);
}

.doctor-action-btn {
  margin-top: 8px;
  display: inline-block;
}

.homepage-cta {
  text-align: center;
  padding: 24px;
  background: linear-gradient(145deg, rgba(20, 184, 166, 0.16), rgba(17, 24, 39, 1) 58%);
}

.homepage-cta .btn {
  margin-top: 8px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-panel {
  width: min(520px, 100%);
}

.chat-box {
  background: #0b1220;
  border: 1px solid var(--border);
  border-radius: 14px;
  min-height: 280px;
  max-height: 420px;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 14px;
}

.chat-list-item {
  width: 100%;
  text-align: left;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
}

.chat-list-item.active,
.chat-list-item:hover {
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.12);
}

.patient-card {
  cursor: pointer;
}

.patient-details {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.mood-day.good {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.25), rgba(34, 197, 94, 0.1));
}

.mood-day.neutral {
  background: linear-gradient(135deg, rgba(234, 179, 8, 0.25), rgba(234, 179, 8, 0.08));
}

.mood-day.bad {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(239, 68, 68, 0.08));
}

.message {
  max-width: 80%;
  padding: 10px 12px;
  border-radius: 12px;
}

.message.user {
  margin-left: auto;
  background: var(--accent);
  color: #022c22;
}

.message.bot {
  background: var(--panel-2);
}

.kpi {
  display: grid;
  gap: 6px;
}

.kpi .value {
  font-size: 24px;
  font-weight: 700;
}

.risk-low {
  color: var(--success);
}

.risk-high {
  color: var(--danger);
}

.mood-good {
  color: var(--success);
}

.mood-neutral {
  color: var(--warning);
}

.mood-bad {
  color: var(--danger);
}

.auth-wrap {
  max-width: 520px;
  margin: 80px auto 0;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .chat-layout {
    grid-template-columns: 1fr;
  }
  .hero-landing {
    grid-template-columns: 1fr;
    padding: 22px;
  }
  .hero-landing h1 {
    font-size: 32px;
  }
}