/* ============================================
   寒山书院 · 在线预约系统样式
   ============================================ */

.booking-section {
  background: var(--paper-warm);
  min-height: 100vh;
  padding: 80px 0 120px;
}

/* 步骤指示器 */
.booking-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 64px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.booking-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
  position: relative;
  color: var(--ink-faded);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.booking-step.active { color: var(--ink); }
.booking-step.done { color: var(--seal); }

.booking-step::after {
  content: '';
  position: absolute;
  top: 16px;
  left: calc(50% + 18px);
  right: calc(-50% + 18px);
  height: 1px;
  background: var(--line);
}

.booking-step:last-child::after { display: none; }
.booking-step.active::after { background: var(--seal); }

.step-num {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.booking-step.active .step-num {
  background: var(--seal);
  color: var(--paper);
  border-color: var(--seal);
}

.booking-step.done .step-num {
  background: var(--seal);
  color: var(--paper);
}

/* 面板 */
.booking-panels {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 64px 48px;
  min-height: 500px;
}

.booking-panel { display: none; }
.booking-panel.active { display: block; animation: fadeIn 0.3s; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.booking-panel-title {
  font-family: var(--font-serif);
  font-size: var(--fs-xl);
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}

/* Step 1: 课程卡片 */
.booking-courses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.booking-course { cursor: pointer; }
.booking-course input { display: none; }

.booking-course-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  transition: all 0.3s;
  background: var(--paper-warm);
}

.booking-course:hover .booking-course-card { border-color: var(--seal); }
.booking-course input:checked + .booking-course-card {
  border-color: var(--seal);
  background: rgba(168, 51, 46, 0.04);
  box-shadow: 0 4px 12px -4px rgba(168, 51, 46, 0.15);
}

.booking-course-icon {
  width: 48px; height: 48px;
  background: var(--paper);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--seal);
  flex-shrink: 0;
}

.booking-course-content h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 4px;
}

.booking-course-content p {
  font-size: 12px;
  color: var(--ink-faded);
  margin-bottom: 8px;
}

.booking-course-price {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--seal);
  letter-spacing: 0.05em;
}

/* Step 2: 日历 */
.booking-calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.booking-calendar-header h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  color: var(--ink);
}

.cal-nav {
  background: transparent;
  border: 1px solid var(--line);
  width: 36px; height: 36px;
  cursor: pointer;
  font-size: 16px;
  color: var(--ink-soft);
  transition: all 0.2s;
}

.cal-nav:hover { background: var(--paper-warm); border-color: var(--seal); color: var(--seal); }

.cal-weekdays, .cal-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-weekdays { margin-bottom: 8px; }
.cal-weekdays span {
  text-align: center;
  font-size: 12px;
  color: var(--ink-faded);
  letter-spacing: 0.1em;
  padding: 8px 0;
}

.cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  position: relative;
}

.cal-day:hover:not(.disabled):not(.empty) {
  background: var(--paper-warm);
  border-color: var(--line);
}

.cal-day.disabled, .cal-day.empty, .cal-day.closed {
  color: rgba(0,0,0,0.25);
  color: rgba(0,0,0,0.15);
  cursor: default;
}

.cal-day.today { color: var(--seal); font-weight: 600; }
.cal-day.full { color: #A8332E; cursor: not-allowed; text-decoration: line-through; opacity: 0.7; }

.cal-day.selected {
  background: var(--seal);
  color: var(--paper);
  border-color: var(--seal);
}

.cal-day .status {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 8px;
  color: var(--ink-faded);
}

.cal-day.selected .status { color: var(--paper); }

/* 时间段 */
.booking-time-slots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 32px;
}

.time-slot {
  padding: 14px 0;
  text-align: center;
  border: 1px solid var(--line);
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  transition: all 0.2s;
}

.time-slot:hover { border-color: var(--seal); color: var(--seal); }
.time-slot.selected { background: var(--seal); color: var(--paper); border-color: var(--seal); }
.time-slot.full { color: var(--ink-faded); background: var(--paper-warm); cursor: not-allowed; }

/* Step 3: 表单 */
.booking-summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  margin-bottom: 32px;
}

.booking-summary .label {
  font-size: 12px;
  color: var(--ink-faded);
  letter-spacing: 0.15em;
}

.booking-summary .value {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink);
  font-weight: 500;
}

.booking-form { display: flex; flex-direction: column; gap: 20px; }

.booking-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.booking-form label {
  display: block;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}

.booking-form input, .booking-form textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s;
}

.booking-form input:focus, .booking-form textarea:focus {
  border-color: var(--seal);
  background: var(--paper);
}

.booking-trust {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(168, 51, 46, 0.04);
  border: 1px solid rgba(168, 51, 46, 0.15);
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.booking-trust svg { color: var(--seal); flex-shrink: 0; }

.booking-actions {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

/* Step 4: 成功页 */
.booking-success {
  text-align: center;
  padding: 32px 0;
}

.success-mark {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--seal);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 300;
  margin: 0 auto 32px;
}

.booking-success h2 {
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.booking-success > p {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 32px;
  line-height: 1.7;
}

.success-detail {
  background: var(--paper-warm);
  border: 1px solid var(--line);
  padding: 24px 32px;
  text-align: left;
  max-width: 480px;
  margin: 0 auto 32px;
  font-size: 14px;
  line-height: 2;
  color: var(--ink-soft);
}

.success-detail strong { color: var(--ink); font-weight: 500; }

.success-actions { display: flex; gap: 16px; justify-content: center; }

/* 移动端 */
@media (max-width: 768px) {
  .booking-panels { padding: 40px 20px; }
  .booking-courses { grid-template-columns: 1fr; }
  .booking-time-slots { grid-template-columns: repeat(2, 1fr); }
  .booking-form .form-row { grid-template-columns: 1fr; }
  .booking-steps { font-size: 11px; }
}