*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0f0f0f;
  --surface:     #1a1a1a;
  --surface-2:   #242424;
  --border:      #2e2e2e;
  --text:        #f0f0f0;
  --text-muted:  #888;
  --primary:     #c9a84c;
  --primary-dark:#a8873a;
  --danger:      #e05252;
  --success:     #4caf7d;
  --radius:      10px;
  --shadow:      0 2px 12px rgba(0,0,0,.4);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon { font-size: 1.75rem; }
.brand-name { font-size: 1.25rem; font-weight: 700; color: var(--primary); letter-spacing: -.01em; }
.brand-tagline { font-size: .75rem; color: var(--text-muted); }
#authArea { display: flex; align-items: center; gap: 12px; }
#userMenu { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: .875rem; }

/* ── Buttons ── */
.btn-primary {
  background: var(--primary);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 9px 18px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius);
  padding: 7px 14px;
  font-size: .875rem;
  cursor: pointer;
}
.btn-ghost:hover { color: var(--text); border-color: #555; }
.btn-danger-sm {
  background: none;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: .75rem;
  cursor: pointer;
}
.btn-danger-sm:hover { background: var(--danger); color: #fff; }

/* ── Hero ── */
#hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 70px);
  text-align: center;
  padding: 40px 20px;
}
.hero-content h1 { font-size: 2.25rem; font-weight: 700; margin-bottom: 12px; }
.hero-content p { color: var(--text-muted); margin-bottom: 28px; font-size: 1.1rem; }

/* ── App layout ── */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 20px; color: var(--primary); }

/* ── Forms ── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .8rem; font-weight: 500; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: .9rem;
  color: var(--text);
  font-family: inherit;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(201,168,76,.15);
}
select option { background: var(--surface-2); }

/* ── Slots grid ── */
#slotsSection { margin-bottom: 20px; }
#slotsSection > label { display: block; font-size: .8rem; font-weight: 500; color: var(--text-muted); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .05em; }
.slots-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.slot-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: .875rem;
  cursor: pointer;
  transition: all .15s;
}
.slot-btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.slot-btn.selected { background: var(--primary); border-color: var(--primary); color: #000; font-weight: 600; }
.slot-btn.unavailable { opacity: .35; cursor: not-allowed; text-decoration: line-through; }

/* ── Booking confirm ── */
.confirm-summary {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 14px;
  font-size: .9rem;
  line-height: 1.7;
}

/* ── Appointment cards ── */
.appt-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.appt-card.cancelled { opacity: .5; }
.appt-datetime { font-weight: 600; font-size: .95rem; margin-bottom: 2px; }
.appt-service { color: var(--primary); font-size: .875rem; }
.appt-notes { color: var(--text-muted); font-size: .8rem; margin-top: 4px; }
.appt-actions { display: flex; align-items: center; gap: 10px; }
.appt-status {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--surface);
}
.appt-status.booked { color: var(--success); }
.appt-status.cancelled { color: var(--text-muted); }

/* ── Utility ── */
.muted { color: var(--text-muted); font-size: .9rem; }
.muted.error { color: var(--danger); }
.hidden { display: none !important; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 22px;
  border-radius: 8px;
  font-size: .875rem;
  z-index: 200;
  box-shadow: var(--shadow);
}
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.hidden { display: none; }

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .appt-card { flex-direction: column; align-items: flex-start; gap: 10px; }
}