/* ═══════════════════════════════════════════════════════════
   Salon Booking – Front-end Stylesheet
   Aesthetic: Luxury dark / warm gold
═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&family=Jost:wght@300;400;500&display=swap');

:root {
  --sb-bg:        #0f0f0f;
  --sb-surface:   #1a1a1a;
  --sb-border:    #2e2e2e;
  --sb-gold:      #c9a84c;
  --sb-gold-lt:   #e2c97e;
  --sb-gold-dk:   #8a6e28;
  --sb-text:      #e8e0d0;
  --sb-muted:     #888;
  --sb-error:     #e05c5c;
  --sb-success:   #5cba85;
  --sb-radius:    10px;
  --sb-font-head: 'Cormorant Garamond', Georgia, serif;
  --sb-font-body: 'Jost', system-ui, sans-serif;
}

.sb-app * { box-sizing: border-box; }

.sb-app {
  font-family: var(--sb-font-body);
  background: var(--sb-bg);
  color: var(--sb-text);
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px;
  border-radius: 16px;
}

/* ── Step indicator ────────────────────────────────────────── */
.sb-steps {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  margin-bottom: 48px;
}

.sb-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
  flex: 1;
  opacity: .35;
  transition: opacity .3s;
}
.sb-step::after {
  content: '';
  position: absolute;
  top: 17px;
  left: 50%;
  width: 100%;
  height: 1px;
  background: var(--sb-border);
  z-index: 0;
}
.sb-step:last-child::after { display: none; }

.sb-step.active,
.sb-step.done { opacity: 1; }
.sb-step.done .sb-step-num { background: var(--sb-gold-dk); color: #fff; }
.sb-step.active .sb-step-num { background: var(--sb-gold); color: var(--sb-bg); }

.sb-step-num {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  display: flex; align-items: center; justify-content: center;
  font-weight: 500; font-size: 14px;
  position: relative; z-index: 1;
  transition: background .3s, color .3s;
}

.sb-step-label {
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sb-muted);
  white-space: nowrap;
}
.sb-step.active .sb-step-label { color: var(--sb-gold); }

/* ── Panels ────────────────────────────────────────────────── */
.sb-panel { display: none; animation: sbFadeIn .35s ease; }
.sb-panel.active { display: block; }

@keyframes sbFadeIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sb-panel-title {
  font-family: var(--sb-font-head);
  font-size: 2rem;
  font-weight: 400;
  color: var(--sb-gold-lt);
  margin: 0 0 28px;
  letter-spacing: .02em;
}

/* ── Style cards ───────────────────────────────────────────── */
.sb-styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.sb-style-card {
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  padding: 24px 20px;
  cursor: pointer;
  transition: border-color .25s, transform .2s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.sb-style-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--sb-gold-dk), var(--sb-gold));
  opacity: 0; transition: opacity .25s;
}
.sb-style-card:hover { border-color: var(--sb-gold-dk); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,.4); }
.sb-style-card:hover::before { opacity: 1; }

.sb-style-card h3 {
  font-family: var(--sb-font-head);
  font-size: 1.5rem; font-weight: 600;
  color: var(--sb-gold-lt);
  margin: 0 0 8px;
}
.sb-style-card p {
  font-size: 13px; color: var(--sb-muted);
  margin: 0 0 12px;
  line-height: 1.5;
}
.sb-style-lengths-preview {
  font-size: 12px; color: var(--sb-muted);
  border-top: 1px solid var(--sb-border);
  padding-top: 10px;
}

/* ── Length cards ──────────────────────────────────────────── */
.sb-lengths-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.sb-length-card {
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  padding: 20px 16px;
  cursor: pointer;
  text-align: center;
  transition: border-color .25s, transform .2s, background .25s;
}
.sb-length-card:hover { border-color: var(--sb-gold); transform: translateY(-2px); }
.sb-length-card.selected { border-color: var(--sb-gold); background: rgba(201,168,76,.08); }

.sb-length-label {
  font-size: 15px; font-weight: 500;
  margin-bottom: 8px;
  color: var(--sb-text);
}
.sb-length-price {
  font-family: var(--sb-font-head);
  font-size: 1.5rem;
  color: var(--sb-gold);
}

/* ── Calendar ──────────────────────────────────────────────── */
.sb-calendar-wrap {
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  padding: 24px;
  margin-bottom: 24px;
}

.sb-cal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.sb-cal-nav {
  background: none; border: 1px solid var(--sb-border);
  color: var(--sb-text); font-size: 22px;
  width: 36px; height: 36px; border-radius: 6px;
  cursor: pointer; transition: border-color .2s, color .2s;
}
.sb-cal-nav:hover { border-color: var(--sb-gold); color: var(--sb-gold); }
#sb-cal-month-label {
  font-family: var(--sb-font-head);
  font-size: 1.3rem; color: var(--sb-gold-lt);
  letter-spacing: .04em;
}

.sb-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.sb-cal-day-name {
  text-align: center; font-size: 11px;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--sb-muted); padding: 4px 0 10px;
}

.sb-cal-day {
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  font-size: 13px; cursor: pointer;
  transition: background .2s, color .2s;
}
.sb-cal-day.empty { cursor: default; }
.sb-cal-day.unavailable { color: var(--sb-border); cursor: not-allowed; }
.sb-cal-day.available { color: var(--sb-text); }
.sb-cal-day.available:hover { background: rgba(201,168,76,.15); color: var(--sb-gold); }
.sb-cal-day.selected { background: var(--sb-gold); color: var(--sb-bg); font-weight: 600; }
.sb-cal-day.today { outline: 1px solid var(--sb-gold-dk); }

/* ── Time slots ────────────────────────────────────────────── */
.sb-time-slots-wrap {
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.sb-time-slots-wrap h3 {
  font-family: var(--sb-font-head);
  font-size: 1.1rem; color: var(--sb-gold-lt);
  margin: 0 0 14px;
}

.sb-time-slots {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.sb-time-btn {
  background: var(--sb-bg);
  border: 1px solid var(--sb-border);
  color: var(--sb-text);
  padding: 8px 16px;
  border-radius: 6px;
  font-family: var(--sb-font-body);
  font-size: 14px;
  cursor: pointer;
  transition: border-color .2s, background .2s, color .2s;
}
.sb-time-btn:hover { border-color: var(--sb-gold); color: var(--sb-gold); }
.sb-time-btn.selected { background: var(--sb-gold); border-color: var(--sb-gold); color: var(--sb-bg); font-weight: 500; }

/* ── Summary card ──────────────────────────────────────────── */
.sb-summary-card {
  background: var(--sb-surface);
  border: 1px solid var(--sb-gold-dk);
  border-radius: var(--sb-radius);
  padding: 20px 24px;
  margin-bottom: 28px;
}
.sb-summary-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--sb-border);
  font-size: 14px;
}
.sb-summary-row:last-child { border-bottom: none; }
.sb-summary-row span { color: var(--sb-muted); }
.sb-summary-row strong { color: var(--sb-gold-lt); font-weight: 500; }

/* ── Form fields ───────────────────────────────────────────── */
.sb-form-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
.sb-field:last-child { grid-column: 1 / -1; }
.sb-field label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--sb-muted); margin-bottom: 8px; }
.sb-field input,
.sb-field textarea {
  width: 100%; background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  color: var(--sb-text);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: var(--sb-font-body);
  font-size: 14px;
  transition: border-color .2s;
  outline: none;
}
.sb-field input:focus,
.sb-field textarea:focus { border-color: var(--sb-gold); }

/* ── Buttons ───────────────────────────────────────────────── */
.sb-btn {
  font-family: var(--sb-font-body);
  font-size: 14px; font-weight: 500;
  letter-spacing: .05em;
  padding: 12px 28px;
  border-radius: 6px;
  cursor: pointer;
  border: none; transition: opacity .2s, transform .15s;
}
.sb-btn:active { transform: scale(.97); }
.sb-btn-primary { background: var(--sb-gold); color: var(--sb-bg); }
.sb-btn-primary:hover { opacity: .88; }
.sb-btn-back { background: transparent; border: 1px solid var(--sb-border); color: var(--sb-muted); margin-right: 12px; }
.sb-btn-back:hover { border-color: var(--sb-muted); color: var(--sb-text); }
.sb-btn[disabled] { opacity: .4; cursor: not-allowed; }

.sb-form-actions { display: flex; align-items: center; }

/* ── Error / loading ───────────────────────────────────────── */
.sb-error  { background: rgba(224,92,92,.1); border: 1px solid var(--sb-error); color: var(--sb-error); border-radius: 6px; padding: 12px 16px; margin-bottom: 20px; font-size: 14px; }
.sb-loading { color: var(--sb-muted); font-size: 14px; padding: 20px 0; }

/* ── Success ───────────────────────────────────────────────── */
.sb-success { text-align: center; padding: 60px 24px; }
.sb-success-icon { font-size: 60px; color: var(--sb-success); margin-bottom: 20px; }
.sb-success h2 { font-family: var(--sb-font-head); font-size: 2rem; color: var(--sb-gold-lt); margin-bottom: 12px; font-weight: 400; }
.sb-success p { color: var(--sb-muted); max-width: 400px; margin: 0 auto; line-height: 1.7; }

/* ── Selected style label ──────────────────────────────────── */
.sb-selected-style-name { font-family: var(--sb-font-head); font-size: 1.2rem; color: var(--sb-gold); margin: -16px 0 20px; font-style: italic; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 560px) {
  .sb-form-fields { grid-template-columns: 1fr; }
  .sb-styles-grid { grid-template-columns: 1fr 1fr; }
}