/* ── Fix: ensure [hidden] hides even when CSS sets display ── */
[hidden] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:   #124029;
  --green2:  #1a5c3a;
  --red:     #e53935;
  --gray50:  #f9fafb;
  --gray100: #f3f4f6;
  --gray200: #e5e7eb;
  --gray400: #9ca3af;
  --gray600: #4b5563;
  --gray800: #1f2937;
  --radius:  10px;
  --shadow:  0 2px 12px rgba(0,0,0,.08);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--gray100);
  color: var(--gray800);
  min-height: 100vh;
}

/* ── Page layout ── */
.page {
  max-width: 560px;
  margin: 0 auto;
  padding: 0 16px 48px;
  position: relative;
}

/* ── Header ── */
header {
  text-align: center;
  padding: 36px 0 24px;
}
.logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--green);
}
.logo span { color: var(--red); }
.tagline {
  color: var(--gray600);
  font-size: .95rem;
  margin-top: 4px;
}

/* ── Steps ── */
.step { display: none; }
.step.active { display: block; }

.step h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--green);
}

/* ── Week navigation ── */
#week-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
#week-label {
  font-size: .9rem;
  font-weight: 600;
  color: var(--gray600);
}
.nav-btn {
  background: none;
  border: 1.5px solid var(--gray200);
  border-radius: 8px;
  width: 36px; height: 36px;
  font-size: 1rem;
  cursor: pointer;
  color: var(--gray600);
  transition: border-color .15s, color .15s;
}
.nav-btn:hover { border-color: var(--green); color: var(--green); }
.nav-btn:disabled { opacity: .35; cursor: default; }

/* ── Day strip ── */
#day-strip {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 24px;
}
.day-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 4px;
  border: 1.5px solid var(--gray200);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  font-family: inherit;
}
.day-btn .day-name {
  font-size: .65rem;
  font-weight: 600;
  color: var(--gray400);
  text-transform: uppercase;
  letter-spacing: .03em;
}
.day-btn .day-num {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray800);
}
.day-btn.has-slots { border-color: var(--green); }
.day-btn.has-slots .day-num { color: var(--green); }
.day-btn.selected {
  background: var(--green);
  border-color: var(--green);
}
.day-btn.selected .day-name,
.day-btn.selected .day-num { color: #fff; }
.day-btn.empty { opacity: .4; cursor: default; }
.day-btn.today .day-num {
  background: var(--red);
  color: #fff;
  border-radius: 50%;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
}
.day-btn.selected.today .day-num { background: rgba(255,255,255,.3); }

/* ── Slot list ── */
#slot-list { display: flex; flex-direction: column; gap: 10px; }
.slot-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border: 1.5px solid var(--gray200);
  border-radius: var(--radius);
  padding: 14px 18px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
  box-shadow: var(--shadow);
}
.slot-card:hover {
  border-color: var(--green);
  box-shadow: 0 4px 16px rgba(18,64,41,.12);
}
.slot-time {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--green);
}
.slot-duration {
  font-size: .8rem;
  color: var(--gray400);
  margin-top: 2px;
}
.slot-arrow {
  font-size: 1.1rem;
  color: var(--gray400);
}
.no-slots {
  text-align: center;
  color: var(--gray400);
  padding: 24px;
  font-size: .9rem;
}

/* ── Booking form ── */
.back-btn {
  background: none;
  border: none;
  color: var(--gray600);
  font-size: .9rem;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.back-btn:hover { color: var(--green); }

.slot-summary {
  background: var(--green);
  color: #fff;
  border-radius: var(--radius);
  padding: 12px 16px;
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: 24px;
}

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray600);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; }
input[type=text], input[type=tel], input[type=email], textarea {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--gray200);
  border-radius: 8px;
  font-size: .95rem;
  font-family: inherit;
  outline: none;
  transition: border-color .15s;
  background: #fff;
}
input:focus, textarea:focus { border-color: var(--green); }
input.invalid, textarea.invalid { border-color: #ef4444; }
textarea { resize: vertical; }

.radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .95rem;
  cursor: pointer;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}
.radio-label input { width: auto; accent-color: var(--green); }

.error-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: .875rem;
  margin-bottom: 16px;
}

/* ── Buttons ── */
.btn-primary {
  width: 100%;
  padding: 13px;
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s;
  margin-top: 4px;
}
.btn-primary:hover { background: var(--green2); }
.btn-primary:disabled { opacity: .6; cursor: default; }
.btn-secondary {
  padding: 11px 24px;
  background: var(--gray100);
  color: var(--gray800);
  border: 1.5px solid var(--gray200);
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  margin-top: 20px;
  transition: border-color .15s;
}
.btn-secondary:hover { border-color: var(--green); color: var(--green); }

/* ── Confirmation ── */
#step-confirm { text-align: center; padding-top: 24px; }
.confirm-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 2rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.confirm-details {
  background: var(--gray100);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .95rem;
  line-height: 1.7;
  margin: 16px 0;
  text-align: left;
}
.confirm-details strong { color: var(--green); }
.confirm-note {
  color: var(--gray600);
  font-size: .875rem;
  margin-top: 12px;
}

/* ── Loading overlay ── */
.loading {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--gray200);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Mobile tweaks ── */
@media (max-width: 400px) {
  .field-row { grid-template-columns: 1fr; }
  #day-strip { gap: 4px; }
  .day-btn { padding: 8px 2px; }
  .day-btn .day-num { font-size: .9rem; }
}