:root {
  --brand-ink: #0f172a;
  --brand-blue: #1d4ed8;
  --brand-blue-soft: #e8eefc;
  --wa-green: #25d366;
  --wa-green-dark: #1da851;
  --surface: #ffffff;
  --page-bg: #f2f5fb;
}

body {
  min-height: 100vh;
  color: var(--brand-ink);
  background-color: var(--page-bg);
  background-image: radial-gradient(circle at 50% 0%, #e2ebff 0%, rgba(242, 245, 251, 0) 60%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

.appointment-page {
  min-height: 100vh;
  padding-bottom: 1.5rem;
}

/* Header */

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  font-size: 1.6rem;
  color: var(--brand-blue);
  background-color: var(--surface);
  border-radius: 1.25rem;
  box-shadow: 0 0.75rem 1.75rem rgba(29, 78, 216, 0.18);
}

.page-subtitle {
  font-size: 0.95rem;
  line-height: 1.5;
  max-width: 34rem;
  margin-inline: auto;
}

/* Card */

.appointment-card {
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 1.25rem;
  background-color: var(--surface);
}

.appointment-card .form-label {
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #33415c;
}

.appointment-card .form-label i {
  color: var(--brand-blue);
}

/* Inputs: comfortable mobile touch targets */

.appointment-card .form-control, .appointment-card .form-select {
  min-height: 3rem;
  font-size: 1rem;
  border-radius: 0.75rem;
  border-color: #dfe5f0;
  padding-inline: 0.9rem;
}

.appointment-card .form-control:focus, .appointment-card .form-select:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 0.25rem rgba(29, 78, 216, 0.15);
}

.appointment-card .form-control.is-invalid:focus, .appointment-card .form-select.is-invalid:focus {
  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.15);
}

.appointment-card .invalid-feedback {
  font-size: 0.8125rem;
  margin-top: 0.35rem;
}

.appointment-card .form-control::placeholder {
  color: #a6b0c3;
}

/* Flatpickr adjustments */

.flatpickr-input[readonly] {
  background-color: var(--surface);
  cursor: pointer;
}

.flatpickr-calendar.open {
  z-index: 1056;
}

.flatpickr-calendar {
  margin-top: 0.35rem;
  border-radius: 0.9rem;
  box-shadow: 0 1rem 2.5rem rgba(15, 23, 42, 0.18);
}

.flatpickr-day.selected, .flatpickr-day.selected:hover, .flatpickr-day.selected:focus {
  background-color: var(--brand-blue);
  border-color: var(--brand-blue);
}

.flatpickr-day.today {
  border-color: var(--brand-blue);
}

.flatpickr-day.today:hover {
  background-color: var(--brand-blue-soft);
  color: var(--brand-ink);
}

/* Buttons */

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 600;
  border: 0;
  border-radius: 0.85rem;
  background-color: var(--wa-green);
  box-shadow: 0 0.6rem 1.4rem rgba(37, 211, 102, 0.32);
  transition: background-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-whatsapp:hover, .btn-whatsapp:focus-visible {
  color: #ffffff;
  background-color: var(--wa-green-dark);
  transform: translateY(-1px);
  box-shadow: 0 0.8rem 1.7rem rgba(37, 211, 102, 0.38);
}

.btn-whatsapp:active {
  transform: translateY(0);
  box-shadow: 0 0.35rem 0.9rem rgba(37, 211, 102, 0.3);
}

.btn-whatsapp.btn-lg {
  min-height: 3.25rem;
  font-size: 1.05rem;
}

.form-note {
  font-size: 0.8125rem;
  color: #6b7789;
}

/* Status panel */

#formStatus {
  border-radius: 0.85rem;
  font-size: 0.9rem;
}

/* Larger screens */

@media (min-width: 576px) {
  .page-subtitle {
    font-size: 1rem;
  }
}

@media (min-width: 768px) {
  .appointment-card {
    border-radius: 1.5rem;
  }
}

@media (min-width: 768px) {
  .appointment-page {
    padding-bottom: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-whatsapp {
    transition: none;
  }
}