/* rhythm.voxetu.com — design tokens
   Palette: night indigo (calm/clinical) + coral pulse (rhythm/entrainment) + sage-teal (wellness)
   Type: Fraunces (display, organic curve — echoes a sound wave) / Inter (body) / Space Mono (BPM readouts)
*/

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  --ink: #191A2E;
  --indigo: #2B2D6E;
  --indigo-deep: #1D1E4A;
  --porcelain: #F4F3F8;
  --coral: #FF6B4A;
  --coral-soft: #FFE4DB;
  --sage: #3E8E82;
  --sage-soft: #DDEFE9;
  --line: #DAD9E8;
  --white: #FFFFFF;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --radius: 14px;
  --shadow: 0 8px 24px rgba(25, 26, 46, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--porcelain);
  color: var(--ink);
  line-height: 1.55;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 0.4em;
  color: var(--indigo-deep);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { color: #4A4B63; }

a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono { font-family: var(--font-mono); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--indigo-deep);
}
.brand .pulse-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--coral);
  animation: pulse-beat 0.86s infinite ease-in-out;
}
.brand small {
  font-family: var(--font-body);
  font-weight: 500;
  color: #8B8CA3;
  font-size: 0.7rem;
  display: block;
}
nav a {
  margin-left: 24px;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-align: center;
}
.btn-primary { background: var(--coral); color: var(--white); }
.btn-primary:hover { background: #E8552F; text-decoration: none; }
.btn-ghost { background: transparent; border: 1.5px solid var(--indigo); color: var(--indigo); }
.btn-ghost:hover { background: var(--indigo); color: var(--white); text-decoration: none; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ---------- Hero + pulse signature ---------- */
.hero {
  padding: 64px 0 40px;
  background: linear-gradient(180deg, var(--indigo-deep) 0%, var(--indigo) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero h1, .hero p { color: var(--white); }
.hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--coral);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hero p.lead { color: #C9CAE6; font-size: 1.1rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.pulse-wave {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 24px;
}
.pulse-wave .bpm-readout {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  color: var(--coral);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.pulse-wave .bpm-readout span { font-size: 0.9rem; color: #C9CAE6; font-family: var(--font-body); }
.pulse-svg { width: 100%; height: 80px; margin-top: 12px; }
.pulse-svg path {
  stroke: var(--coral);
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 260;
  stroke-dashoffset: 260;
  animation: pulse-draw 0.86s infinite linear;
}
@keyframes pulse-draw {
  0% { stroke-dashoffset: 260; }
  100% { stroke-dashoffset: 0; }
}
@keyframes pulse-beat {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}
@media (prefers-reduced-motion: reduce) {
  .pulse-svg path, .pulse-dot { animation: none; }
}

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--white); }
.section-head { max-width: 60ch; margin-bottom: 36px; }
.section-head p { font-size: 1.05rem; }

.therapy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.therapy-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.therapy-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.therapy-card .name-hi {
  font-size: 0.85rem;
  color: var(--sage);
  font-weight: 600;
  margin-bottom: 6px;
}
.therapy-card .bpm-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--coral-soft);
  color: #B84226;
  padding: 3px 10px;
  border-radius: 999px;
  margin-top: 10px;
}
.therapy-card .conditions {
  font-size: 0.8rem;
  color: #8B8CA3;
  margin-top: 10px;
}

/* ---------- Forms ---------- */
.auth-wrap {
  max-width: 420px;
  margin: 64px auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--indigo-deep);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--porcelain);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: 2px solid var(--coral);
  outline-offset: 1px;
  background: var(--white);
}
.form-error {
  background: var(--coral-soft);
  color: #B84226;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.form-success {
  background: var(--sage-soft);
  color: #23594F;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.auth-switch { text-align: center; margin-top: 18px; font-size: 0.9rem; color: #8B8CA3; }

/* ---------- Dashboard ---------- */
.dash-header {
  background: var(--indigo-deep);
  color: var(--white);
  padding: 32px 0;
}
.dash-header h1 { color: var(--white); font-size: 1.8rem; }
.dash-header .sub { color: #C9CAE6; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 28px 0;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.stat-card .num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  color: var(--indigo);
}
.stat-card .label { font-size: 0.82rem; color: #8B8CA3; }

.dash-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}
.dash-panel h3 { margin-bottom: 16px; }

table.sessions-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.sessions-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #8B8CA3;
  padding: 8px 10px;
  border-bottom: 1.5px solid var(--line);
}
table.sessions-table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
}
table.sessions-table tr:last-child td { border-bottom: none; }
.mood-pip {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--sage);
  margin-right: 4px;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: #8B8CA3;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--indigo-deep);
  color: #9C9DC0;
  padding: 32px 0;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 40px;
}
.site-footer a { color: #C9CAE6; }