/* ==========================================================================
   Pure Simple — Salon Reservation SaaS Design Template
   Concept: "サロンの世界観を壊さない、美しい予約システム"
   ========================================================================== */

:root {
  /* Base Palette */
  --bg-page: #fafafa;
  --bg-surface: #ffffff;
  --text-main: #181818;
  --text-sub: #666666;
  --text-muted: #999999;
  --line-light: #ececec;
  --line-hairline: #f2f2f2;
  --danger: #b2413a;

  /* Dynamic Brand Color (Live customizer updates these) */
  --brand-color: #222222;
  --brand-contrast-text: #ffffff;
  --brand-subtle-bg: rgba(34, 34, 34, 0.05);
  --brand-border: #222222;
  --brand-focus-ring: rgba(34, 34, 34, 0.15);

  /* Typography */
  --font-brand: -apple-system, BlinkMacSystemFont, "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

  /* Dimensions */
  --app-max-width: 480px;
  --radius-sm: 4px;
  --radius-pill: 999px;
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-padding-top: 60px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Demo Theme Controller Bar (Isolated from Customer View)
   ========================================================================== */
.demo-controller {
  background: #1c1c1c;
  color: #f0f0f0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  font-size: 12px;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.demo-controller-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.demo-controller-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-tag {
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  letter-spacing: 0.05em;
  font-weight: 600;
  text-transform: uppercase;
}

.demo-title {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.demo-controller-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.preset-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.preset-label {
  color: #aaaaaa;
  font-size: 11px;
}

.color-swatch-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.color-swatch-btn:hover {
  transform: scale(1.15);
}

.color-swatch-btn.is-active {
  border-color: #ffffff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
  transform: scale(1.1);
}

.custom-hex-input-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.1);
  padding: 3px 6px;
  border-radius: var(--radius-sm);
}

.custom-hex-input-wrap input[type="color"] {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.custom-hex-input-wrap input[type="text"] {
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 11px;
  width: 65px;
  text-transform: uppercase;
  outline: none;
}

.contrast-indicator {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: #c9c9c9;
  letter-spacing: 0.02em;
}

.contrast-indicator strong {
  color: #ffffff;
}

/* ==========================================================================
   Customer Reservation Container
   ========================================================================== */
.app-viewport {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 24px 16px 48px;
}

.reservation-container {
  width: 100%;
  max-width: var(--app-max-width);
  background: var(--bg-surface);
  border: 1px solid var(--line-light);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

/* ==========================================================================
   Pure Simple Header
   ========================================================================== */
.salon-header {
  padding: 32px 24px 20px;
  text-align: center;
  border-bottom: 1px solid var(--line-hairline);
}

.salon-category {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 500;
}

.salon-name {
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.2;
}

.salon-concept {
  font-size: 12px;
  color: var(--text-sub);
  letter-spacing: 0.03em;
  line-height: 1.5;
  max-width: 340px;
  margin: 0 auto;
}

/* Step Bar */
.step-tracker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line-light);
  background: #ffffff;
}

.step-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 500;
}

.step-indicator .step-number {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--brand-color);
}

.step-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.step-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-light);
  transition: var(--transition);
}

.step-dot.is-active {
  background: var(--brand-color);
  width: 18px;
  border-radius: var(--radius-pill);
}

.step-dot.is-completed {
  background: var(--text-sub);
}

/* Step Content Wrap */
.step-content {
  padding: 24px;
  flex: 1;
}

.step-heading-wrap {
  margin-bottom: 20px;
}

.step-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.step-subtitle {
  font-size: 12px;
  color: var(--text-sub);
  letter-spacing: 0.02em;
}

/* Back Link Button */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: var(--text-sub);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 0;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  transition: color 0.15s ease;
}

.back-btn:hover {
  color: var(--brand-color);
}

/* ==========================================================================
   STEP 1: Menu Selection
   ========================================================================== */
.menu-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.menu-card {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  background: #ffffff;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  position: relative;
  user-select: none;
}

.menu-card:hover {
  border-color: #d0d0d0;
  background: #fdfdfd;
}

.menu-card.is-selected {
  border-color: var(--brand-color);
  background: var(--brand-subtle-bg);
  box-shadow: 0 0 0 1px var(--brand-color);
}

.menu-info {
  flex: 1;
  min-width: 0;
}

.menu-head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.menu-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.35;
}

.menu-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 13px;
}

.menu-price {
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.menu-duration {
  color: var(--text-sub);
  font-size: 12px;
}

.menu-desc {
  font-size: 11.5px;
  color: var(--text-sub);
  line-height: 1.5;
  margin-top: 4px;
}

.menu-tags {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.menu-tag {
  font-size: 10px;
  color: var(--text-sub);
  border: 1px solid var(--line-light);
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  background: #ffffff;
}

/* Menu Thumbnail (Optional) */
.menu-thumb-wrap {
  width: 68px;
  height: 68px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--line-hairline);
  border: 1px solid var(--line-hairline);
}

.menu-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   STEP 2: Date & Time Selection
   ========================================================================== */
.selection-pill-banner {
  background: #fbfbfb;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}

.selection-pill-title {
  color: var(--text-sub);
}

.selection-pill-value {
  font-weight: 600;
  color: var(--text-main);
}

/* Calendar Card */
.calendar-card {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
  background: #ffffff;
}

.calendar-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.calendar-month-label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-main);
}

.calendar-nav-btn {
  background: transparent;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-sub);
  font-size: 14px;
  transition: var(--transition);
}

.calendar-nav-btn:hover:not(:disabled) {
  border-color: var(--text-main);
  color: var(--text-main);
}

.calendar-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  text-align: center;
  margin-bottom: 6px;
}

.calendar-weekday {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 4px 0;
}

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

.cal-empty {
  aspect-ratio: 1;
}

.cal-day-btn {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  padding: 2px;
}

.cal-day-num {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1;
}

.cal-avail-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  margin-top: 3px;
  background: transparent;
}

.cal-day-btn.is-available .cal-avail-dot {
  background: var(--brand-color);
  opacity: 0.6;
}

.cal-day-btn.is-few .cal-avail-dot {
  background: #c59141;
}

.cal-day-btn:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.03);
  border-color: var(--line-light);
}

.cal-day-btn.is-selected {
  background: var(--brand-color) !important;
  color: var(--brand-contrast-text) !important;
  border-color: var(--brand-color) !important;
}

.cal-day-btn.is-selected .cal-day-num {
  color: var(--brand-contrast-text);
  font-weight: 700;
}

.cal-day-btn.is-selected .cal-avail-dot {
  background: var(--brand-contrast-text);
  opacity: 1;
}

.cal-day-btn:disabled {
  opacity: 0.28;
  cursor: not-allowed;
}

.cal-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
  font-size: 11px;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.legend-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.legend-dot.avail {
  background: var(--brand-color);
  opacity: 0.6;
}

.legend-dot.few {
  background: #c59141;
}

/* Time Slots Section */
.times-card {
  margin-top: 10px;
}

.times-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.time-slot-btn {
  padding: 10px 4px;
  background: #ffffff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.time-slot-btn:hover {
  border-color: var(--brand-color);
  background: var(--brand-subtle-bg);
}

.time-slot-btn.is-selected {
  background: var(--brand-color);
  color: var(--brand-contrast-text);
  border-color: var(--brand-color);
  font-weight: 700;
}

/* ==========================================================================
   STEP 3: Customer Information Form
   ========================================================================== */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-badge-req {
  font-size: 9.5px;
  color: var(--brand-color);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.form-badge-opt {
  font-size: 9.5px;
  color: var(--text-muted);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 11px 12px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-main);
  background: #ffffff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--brand-color);
  box-shadow: 0 0 0 2px var(--brand-focus-ring);
}

.form-input.is-error, .form-textarea.is-error {
  border-color: var(--danger);
}

.field-error-msg {
  font-size: 11px;
  color: var(--danger);
  margin-top: 2px;
}

.form-textarea {
  resize: vertical;
  min-height: 72px;
}

/* ==========================================================================
   STEP 4: Confirmation & Summary
   ========================================================================== */
.confirm-box {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  background: #ffffff;
  overflow: hidden;
  margin-bottom: 20px;
}

.confirm-row {
  display: flex;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-hairline);
  font-size: 13px;
  line-height: 1.5;
}

.confirm-row:last-child {
  border-bottom: none;
}

.confirm-label {
  width: 105px;
  color: var(--text-sub);
  flex-shrink: 0;
  font-size: 12px;
}

.confirm-val {
  flex: 1;
  color: var(--text-main);
  font-weight: 500;
}

.confirm-val.is-price {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 15px;
}

.demo-disclaimer-card {
  background: #fdfaf6;
  border: 1px solid #faead7;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  color: #8c6838;
  margin-bottom: 24px;
  line-height: 1.5;
}

/* ==========================================================================
   STEP 5: Completion
   ========================================================================== */
.complete-card {
  text-align: center;
  padding: 32px 16px 20px;
}

.complete-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  border-radius: 50%;
  border: 1.5px solid var(--brand-color);
  color: var(--brand-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.complete-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.complete-sub {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  max-width: 340px;
  margin: 0 auto 24px;
}

.complete-summary {
  text-align: left;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
  background: #fbfbfb;
  font-size: 12.5px;
}

.complete-summary dt {
  color: var(--text-sub);
  font-size: 11.5px;
  margin-top: 8px;
}

.complete-summary dt:first-child {
  margin-top: 0;
}

.complete-summary dd {
  font-weight: 600;
  color: var(--text-main);
  margin-left: 0;
}

/* ==========================================================================
   Action Buttons & Sticky Footer Bar
   ========================================================================== */
.action-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--line-hairline);
  background: #ffffff;
}

.btn-primary {
  width: 100%;
  padding: 14px 20px;
  background: var(--brand-color);
  color: var(--brand-contrast-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-secondary {
  width: 100%;
  padding: 12px 18px;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
}

.btn-secondary:hover {
  border-color: var(--text-main);
  color: var(--text-main);
}

/* Footer note */
.salon-footer-note {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  padding: 20px;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Mobile Optimization (iPhone priority)
   ========================================================================== */
@media (max-width: 480px) {
  .app-viewport {
    padding: 0;
  }

  .reservation-container {
    border: none;
    border-radius: 0;
    box-shadow: none;
    min-height: 100vh;
  }

  .salon-header {
    padding: 24px 18px 16px;
  }

  .salon-name {
    font-size: 24px;
  }

  .step-content {
    padding: 18px 16px 24px;
  }

  .menu-card {
    padding: 12px 14px;
  }

  .calendar-card {
    padding: 12px 10px;
  }

  .cal-day-num {
    font-size: 12px;
  }

  .times-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .time-slot-btn {
    padding: 10px 2px;
    font-size: 12.5px;
  }

  .action-footer {
    padding: 14px 16px;
    position: sticky;
    bottom: 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.03);
  }
}