/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0a0a;
  --gray-900: #111111;
  --gray-800: #1a1a1a;
  --gray-700: #2a2a2a;
  --gray-600: #3a3a3a;
  --gray-400: #888888;
  --gray-300: #aaaaaa;
  --gray-200: #cccccc;
  --gray-100: #f5f5f5;
  --white: #ffffff;
  --gold: #c9a84c;
  --gold-light: #e8c87a;
  --gold-dark: #9a7a30;
  --red: #e53e3e;
  --green: #38a169;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.18);
  --transition: 0.18s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-900);
  color: var(--white);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===== LAYOUT ===== */
.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px;
}

.page-header {
  background: var(--black);
  border-bottom: 1px solid var(--gray-700);
  padding: 20px 0;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.page-header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-header p {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 2px;
}

/* ===== CARDS ===== */
.card {
  background: var(--gray-800);
  border: 1px solid var(--gray-700);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
}

/* ===== BOTÕES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold);
  color: var(--black);
  width: 100%;
}
.btn-primary:hover { background: var(--gold-light); }
.btn-primary:disabled { background: var(--gray-600); color: var(--gray-400); cursor: not-allowed; }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
  width: 100%;
}
.btn-outline:hover { background: rgba(201,168,76,0.1); }

.btn-danger {
  background: transparent;
  color: var(--red);
  border: 1px solid var(--red);
  padding: 8px 16px;
  font-size: 0.85rem;
}
.btn-danger:hover { background: rgba(229,62,62,0.1); }

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

/* ===== FORMULÁRIOS ===== */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--gray-300);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--gray-700);
  border: 1px solid var(--gray-600);
  border-radius: var(--radius);
  color: var(--white);
  font-size: 1rem;
  padding: 12px 16px;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}

.form-group input::placeholder { color: var(--gray-400); }

/* ===== STEP INDICATOR ===== */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 24px 0 8px;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
  position: relative;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--gray-700);
  z-index: 0;
}

.step-item.done:not(:last-child)::after { background: var(--gold); }

.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-700);
  border: 2px solid var(--gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gray-400);
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.step-item.active .step-dot {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}

.step-item.done .step-dot {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  color: var(--white);
}

.step-label {
  font-size: 0.7rem;
  color: var(--gray-400);
  text-align: center;
}
.step-item.active .step-label { color: var(--gold); }

/* ===== SERVICE CARDS ===== */
.service-card {
  background: var(--gray-700);
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-card:hover { border-color: var(--gold-dark); background: var(--gray-600); }
.service-card.selected { border-color: var(--gold); background: rgba(201,168,76,0.08); }

.service-name { font-weight: 600; font-size: 1rem; }
.service-meta { font-size: 0.8rem; color: var(--gray-400); margin-top: 2px; }
.service-price { font-weight: 700; color: var(--gold); font-size: 0.95rem; }

/* ===== CALENDAR ===== */
.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.calendar-nav button {
  background: var(--gray-700);
  border: 1px solid var(--gray-600);
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.calendar-nav button:hover { background: var(--gray-600); }

.calendar-month { font-weight: 600; font-size: 1rem; }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
}

.calendar-grid .dow {
  font-size: 0.7rem;
  color: var(--gray-400);
  padding: 4px 0;
  font-weight: 600;
  text-transform: uppercase;
}

.cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.cal-day.empty { cursor: default; }
.cal-day.past { color: var(--gray-600); cursor: not-allowed; }
.cal-day.no-work { color: var(--gray-600); cursor: not-allowed; }
.cal-day.available:hover { background: var(--gray-600); }
.cal-day.today { color: var(--gold); font-weight: 700; }
.cal-day.selected { background: var(--gold); color: var(--black); font-weight: 700; border-color: var(--gold); }

/* ===== TIME SLOTS ===== */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.slot {
  background: var(--gray-700);
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 10px 4px;
  text-align: center;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.slot:hover { border-color: var(--gold-dark); }
.slot.selected { background: var(--gold); color: var(--black); border-color: var(--gold); }
.slot.occupied { background: var(--gray-800); color: var(--gray-600); cursor: not-allowed; }

/* ===== MENSAGENS ===== */
.msg {
  text-align: center;
  padding: 20px;
  color: var(--gray-400);
  font-size: 0.9rem;
}

.msg-success {
  background: rgba(56,161,105,0.1);
  border: 1px solid var(--green);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--green);
}

.msg-error {
  background: rgba(229,62,62,0.1);
  border: 1px solid var(--red);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--red);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

/* ===== SPINNER ===== */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--gray-600);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 20px auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ===== BADGE ===== */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-green { background: rgba(56,161,105,0.15); color: var(--green); }
.badge-red { background: rgba(229,62,62,0.15); color: var(--red); }
.badge-gold { background: rgba(201,168,76,0.15); color: var(--gold); }

/* ===== ADMIN SPECIFIC ===== */
.admin-tabs {
  display: flex;
  gap: 4px;
  background: var(--gray-800);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 20px;
}

.admin-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-400);
  transition: var(--transition);
  border: none;
  background: transparent;
}

.admin-tab.active {
  background: var(--gold);
  color: var(--black);
}

.appointment-item {
  background: var(--gray-700);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.appointment-time {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
}

.appointment-info { flex: 1; }
.appointment-client { font-weight: 600; }
.appointment-service { font-size: 0.85rem; color: var(--gray-400); }

.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  margin-bottom: 12px;
  font-weight: 600;
}

.divider {
  border: none;
  border-top: 1px solid var(--gray-700);
  margin: 20px 0;
}

/* ===== DAY CHECKBOXES ===== */
.day-checkboxes {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 16px;
}

.day-check {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.day-check input { display: none; }

.day-check-label {
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-700);
  border: 2px solid transparent;
  border-radius: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-400);
  transition: var(--transition);
  cursor: pointer;
}

.day-check input:checked + .day-check-label {
  background: rgba(201,168,76,0.15);
  border-color: var(--gold);
  color: var(--gold);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 380px) {
  .slots-grid { grid-template-columns: repeat(3, 1fr); }
  .day-checkboxes { grid-template-columns: repeat(7, 1fr); }
}