/* ============================================
   iOS Evolution Guide — Apple Minimalist Style
   ============================================ */

/* === CSS Custom Properties === */
:root {
  /* Colors */
  --bg-primary: #F5F5F7;
  --bg-white: #FFFFFF;
  --text-primary: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-tertiary: #86868B;
  --brand-blue: #0071E3;
  --brand-blue-hover: #0077ED;
  --divider: rgba(0, 0, 0, 0.08);
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-bg-solid: #FFFFFF;
  --card-border: rgba(0, 0, 0, 0.04);

  /* iOS version gradients */
  --ios14-gradient: linear-gradient(135deg, #5AC8FA, #007AFF);
  --ios15-gradient: linear-gradient(135deg, #34C759, #30D158);
  --ios16-gradient: linear-gradient(135deg, #AF52DE, #5856D6);
  --ios17-gradient: linear-gradient(135deg, #FF6B6B, #FF9500);

  /* iOS version colors */
  --ios14-color: #007AFF;
  --ios15-color: #34C759;
  --ios16-color: #AF52DE;
  --ios17-color: #FF9500;

  /* Typography */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-mono: -apple-system, BlinkMacSystemFont, "SF Mono", "Menlo", monospace;

  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;

  /* Transitions */
  --ease-apple: cubic-bezier(0.25, 0.1, 0.25, 1.0);
  --transition-fast: 200ms var(--ease-apple);
  --transition-normal: 300ms var(--ease-apple);
  --transition-slow: 400ms var(--ease-apple);

  /* Shadows */
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.08);
  --shadow-nav: 0 0.5px 0 rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--brand-blue-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* === Container === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* === Section === */
.section {
  padding: var(--section-padding);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-blue);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 18px;
  font-weight: 300;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-slow), box-shadow var(--transition-slow), backdrop-filter var(--transition-slow);
}

.nav--scrolled {
  background: rgba(245, 245, 247, 0.86);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: var(--shadow-nav);
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
}

.nav-logo-icon {
  width: 20px;
  height: 20px;
  background: var(--ios17-gradient);
  border-radius: 5px;
  display: inline-block;
}

.nav-logo-text {
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 10px;
  align-items: center;
}

.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--bg-white);
  padding: 6px 16px;
  border-radius: 980px;
  transition: all var(--transition-fast);
  position: relative;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.nav-link[data-version="14"] {
  background: linear-gradient(135deg, #5AC8FA, #007AFF);
}

.nav-link[data-version="15"] {
  background: linear-gradient(135deg, #34C759, #30D158);
}

.nav-link[data-version="16"] {
  background: linear-gradient(135deg, #AF52DE, #5856D6);
}

.nav-link[data-version="17"] {
  background: linear-gradient(135deg, #FF6B6B, #FF9500);
}

.nav-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  filter: brightness(1.08);
}

.nav-link:active {
  transform: translateY(0);
}

/* Nav scrolled state */
.nav.scrolled .nav-link {
  color: var(--bg-white);
}

.nav-cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--bg-white);
  background: var(--brand-blue);
  padding: 6px 16px;
  border-radius: 980px;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
  background: var(--brand-blue-hover);
  color: var(--bg-white);
  transform: scale(1.02);
}

/* Mobile toggle */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-toggle span {
  width: 18px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-mobile-toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav-mobile-toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav-mobile-toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

.nav-mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  background: rgba(245, 245, 247, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-mobile-menu--open {
  display: flex;
}

.nav-mobile-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--bg-white);
  border-radius: 980px;
  border-bottom: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
  transition: all var(--transition-fast);
}

.nav-mobile-link[data-version="14"] {
  background: linear-gradient(135deg, #5AC8FA, #007AFF);
}

.nav-mobile-link[data-version="15"] {
  background: linear-gradient(135deg, #34C759, #30D158);
}

.nav-mobile-link[data-version="16"] {
  background: linear-gradient(135deg, #AF52DE, #5856D6);
}

.nav-mobile-link[data-version="17"] {
  background: linear-gradient(135deg, #FF6B6B, #FF9500);
}

.nav-mobile-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  filter: brightness(1.08);
}

.nav-mobile-link:last-child {
  border-bottom: none;
  color: var(--bg-white);
  font-weight: 500;
  background: var(--brand-blue);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(245, 245, 247, 0.4) 0%,
    rgba(245, 245, 247, 0.7) 50%,
    rgba(245, 245, 247, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 7vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-title-gradient {
  background: linear-gradient(135deg, #007AFF, #AF52DE, #FF9500);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto 48px;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.hero-badge {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
  text-decoration: none;
}

.hero-badge:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  color: white;
}

.hero-badge--14 { background: var(--ios14-gradient); }
.hero-badge--15 { background: var(--ios15-gradient); }
.hero-badge--16 { background: var(--ios16-gradient); }
.hero-badge--17 { background: var(--ios17-gradient); }

.hero-badge-num {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.hero-badge-label {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.85;
  margin-top: 2px;
}

.hero-scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 400;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(6px); }
  60% { transform: translateY(3px); }
}

/* ============================================
   Device Gallery
   ============================================ */
.device-gallery {
  background: var(--bg-white);
}

.gallery-timeline {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.gallery-item {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 32px;
  border: 1px solid var(--card-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gallery-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.gallery-item-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.gallery-badge {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.gallery-gen-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.gallery-gen-years {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-tertiary);
}

.gallery-img-wrapper {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--bg-white);
}

.gallery-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 2 / 1;
  transition: transform 0.5s var(--ease-apple);
}

.gallery-item:hover .gallery-img {
  transform: scale(1.02);
}

.gallery-models {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.gallery-model-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-white);
  padding: 5px 12px;
  border-radius: 980px;
  border: 1px solid var(--divider);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.gallery-model-tag:hover {
  background: var(--text-primary);
  color: var(--bg-white);
  border-color: var(--text-primary);
}

/* ============================================
   Comparison Cards
   ============================================ */
.comparison {
  background: var(--bg-primary);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.comparison-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 32px 24px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-card);
}

.comparison-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.comparison-card-badge {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
}

.badge-14 { background: var(--ios14-gradient); }
.badge-15 { background: var(--ios15-gradient); }
.badge-16 { background: var(--ios16-gradient); }
.badge-17 { background: var(--ios17-gradient); }

.comparison-card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.comparison-card-date {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-tertiary);
  margin-bottom: 20px;
}

.comparison-card-divider {
  height: 1px;
  background: var(--divider);
  margin-bottom: 20px;
}

.comparison-card-row {
  margin-bottom: 16px;
}

.comparison-card-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.comparison-card-value {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.5;
}

.comparison-card-score {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--divider);
}

.score-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.score-bar {
  flex: 1;
  height: 4px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 2px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s var(--ease-apple);
}

.score-fill-14 { background: var(--ios14-gradient); }
.score-fill-15 { background: var(--ios15-gradient); }
.score-fill-16 { background: var(--ios16-gradient); }
.score-fill-17 { background: var(--ios17-gradient); }

.score-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================
   Detail Section (Tabs)
   ============================================ */
.detail {
  background: var(--bg-white);
}

.detail-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.detail-tab {
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 24px;
  border-radius: 980px;
  border: 1px solid var(--divider);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.detail-tab:hover {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

.detail-tab.active {
  background: var(--text-primary);
  color: var(--bg-white);
  border-color: var(--text-primary);
}

.detail-panels {
  position: relative;
}

.detail-panel {
  display: none;
  animation: fadeIn 0.4s var(--ease-apple);
}

.detail-panel.active {
  display: block;
}

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

.detail-panel-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--divider);
}

.detail-panel-badge {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.detail-panel-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.detail-panel-date {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-tertiary);
}

.detail-panel-body {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.detail-col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.detail-col-title--pro {
  color: #34C759;
}

.detail-col-title--con {
  color: #FF3B30;
}

.device-list li {
  font-size: 14px;
  color: var(--text-primary);
  padding: 6px 0;
  border-bottom: 1px solid var(--divider);
  line-height: 1.4;
}

.device-list li:last-child {
  border-bottom: none;
}

.device-note {
  font-size: 12px;
  color: #FF3B30;
  margin-top: 12px;
  font-weight: 500;
}

.pro-list li,
.con-list li {
  font-size: 14px;
  color: var(--text-primary);
  padding: 8px 0;
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.pro-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34C759;
}

.con-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #FF3B30;
}

.pro-list li strong,
.con-list li strong {
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

/* Rating */
.rating {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rating-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.rating-stars {
  display: flex;
  gap: 2px;
  flex: 1;
}

.star {
  width: 14px;
  height: 14px;
  display: inline-block;
  position: relative;
}

.star::before {
  content: '\2605';
  font-size: 14px;
  color: #D1D1D6;
}

.star.active::before {
  color: #FF9500;
}

.star.half::before {
  background: linear-gradient(90deg, #FF9500 50%, #D1D1D6 50%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rating-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  min-width: 24px;
  text-align: right;
}

/* ============================================
   Compatibility Table
   ============================================ */
.compatibility {
  background: var(--bg-primary);
}

.compat-table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  background: var(--card-bg-solid);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--card-border);
  -webkit-overflow-scrolling: touch;
}

.compat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 640px;
}

.compat-table thead {
  background: rgba(0, 0, 0, 0.02);
}

.compat-table th {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--divider);
  white-space: nowrap;
}

.compat-table th:first-child {
  text-align: left;
  padding-left: 24px;
}

.compat-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--divider);
  font-weight: 400;
  color: var(--text-secondary);
}

.compat-table td:first-child {
  text-align: left;
  padding-left: 24px;
  font-weight: 500;
  color: var(--text-primary);
}

.compat-table tbody tr:last-child td {
  border-bottom: none;
}

.compat-table tbody tr:hover {
  background: rgba(0, 0, 0, 0.015);
}

.device-name {
  white-space: nowrap;
}

.supported {
  color: #34C759;
  font-weight: 500;
}

.unsupported {
  color: #C7C7CC;
  font-weight: 400;
}

.released-later {
  color: #C7C7CC;
  font-weight: 300;
  font-style: italic;
}

.compat-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-supported { background: #34C759; }
.legend-unsupported { background: #C7C7CC; }
.legend-later { background: #E5E5EA; }

/* ============================================
   Recommendations
   ============================================ */
.recommendations {
  background: var(--bg-white);
}

.rec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.rec-card {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: 36px 28px;
  border: 1px solid var(--card-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.rec-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.rec-card--highlight {
  background: var(--text-primary);
  color: var(--bg-white);
  border-color: transparent;
}

.rec-card--highlight .rec-card-subtitle,
.rec-card--highlight .rec-card-desc {
  color: rgba(255, 255, 255, 0.7);
}

.rec-card--highlight .rec-card-title {
  color: var(--bg-white);
}

.rec-card--highlight .rec-card-tag {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
}

.rec-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.rec-icon-stable {
  background: linear-gradient(135deg, #E8F5E9, #C8E6C9);
  color: #34C759;
}

.rec-icon-geek {
  background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.08));
  color: rgba(255, 255, 255, 0.9);
}

.rec-icon-balance {
  background: linear-gradient(135deg, #E8EAF6, #C5CAE9);
  color: #5856D6;
}

.rec-card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.rec-card-subtitle {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.rec-card-desc {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.rec-card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 980px;
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--divider);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
}

.footer-copyright {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.footer-disclaimer {
  font-size: 12px;
  font-weight: 300;
  color: var(--text-tertiary);
  max-width: 520px;
  line-height: 1.5;
}

.footer-back-top {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--divider);
  border-radius: 980px;
  padding: 8px 18px;
  font-family: var(--font-text);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.footer-back-top:hover {
  background: var(--bg-white);
  color: var(--text-primary);
  border-color: rgba(0, 0, 0, 0.15);
}

/* ============================================
   Scroll Reveal Animation
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-apple), transform 0.6s var(--ease-apple);
}

.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for grid items */
.comparison-card.reveal:nth-child(1) { transition-delay: 0ms; }
.comparison-card.reveal:nth-child(2) { transition-delay: 80ms; }
.comparison-card.reveal:nth-child(3) { transition-delay: 160ms; }
.comparison-card.reveal:nth-child(4) { transition-delay: 240ms; }

.rec-card.reveal:nth-child(1) { transition-delay: 0ms; }
.rec-card.reveal:nth-child(2) { transition-delay: 100ms; }
.rec-card.reveal:nth-child(3) { transition-delay: 200ms; }

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }

  .comparison-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-panel-body {
    grid-template-columns: repeat(2, 1fr);
  }

  .rec-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 100px 20px 60px;
  }

  .hero-title {
    font-size: clamp(28px, 8vw, 40px);
  }

  .hero-badges {
    gap: 12px;
  }

  .hero-badge {
    width: 60px;
    height: 60px;
  }

  .hero-badge-num {
    font-size: 20px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: clamp(24px, 6vw, 36px);
  }

  .section-desc {
    font-size: 16px;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .comparison-card {
    padding: 24px 20px;
  }

  .detail-tabs {
    gap: 6px;
  }

  .detail-tab {
    font-size: 13px;
    padding: 8px 16px;
  }

  .detail-panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .detail-panel-body {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .detail-panel-title {
    font-size: 22px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 24px;
  }

  .compat-legend {
    gap: 16px;
  }

  .gallery-item {
    padding: 20px 16px;
  }

  .gallery-img {
    aspect-ratio: 16 / 10;
  }

  .gallery-gen-title {
    font-size: 17px;
  }

  .gallery-model-tag {
    font-size: 11px;
    padding: 4px 10px;
  }
}

/* Small mobile */
@media (max-width: 375px) {
  .hero-badges {
    gap: 8px;
  }

  .hero-badge {
    width: 52px;
    height: 52px;
    border-radius: 8px;
  }

  .hero-badge-num {
    font-size: 18px;
  }

  .hero-badge-label {
    font-size: 10px;
  }

  .modal {
    padding: 24px 16px;
  }

  .modal-title {
    font-size: 20px;
  }
}

/* ============================================
   Device Search Modal
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-apple), visibility 0.3s var(--ease-apple);
  padding: 24px;
}

.modal-overlay--open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 36px 32px;
  max-width: 480px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.12);
  transform: translateY(12px);
  transition: transform 0.3s var(--ease-apple);
}

.modal-overlay--open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  padding: 4px;
  border-radius: 50%;
  transition: background var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.modal-search {
  position: relative;
  margin-bottom: 16px;
}

.modal-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.modal-input {
  width: 100%;
  padding: 12px 16px 12px 40px;
  border: 1px solid var(--divider);
  border-radius: 10px;
  font-family: var(--font-text);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.modal-input::placeholder {
  color: var(--text-tertiary);
}

.modal-input:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.modal-results {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
  max-height: 240px;
  overflow-y: auto;
}

.modal-device-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-text);
  font-size: 14px;
  color: var(--text-primary);
  text-align: left;
  transition: background var(--transition-fast);
}

.modal-device-item:hover {
  background: rgba(0, 0, 0, 0.03);
}

.modal-device-item--active {
  background: rgba(0, 113, 227, 0.08);
}

.modal-device-name {
  font-weight: 500;
}

.modal-device-max {
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-blue);
  background: rgba(0, 113, 227, 0.08);
  padding: 3px 8px;
  border-radius: 980px;
  white-space: nowrap;
}

.modal-result-detail {
  border-top: 1px solid var(--divider);
  padding-top: 16px;
}

.modal-hint {
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: center;
  padding: 12px 0;
}

.modal-result-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

.modal-ver-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.modal-ver-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 8px;
  border-radius: 8px;
  background: var(--bg-primary);
}

.modal-ver-num {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.modal-ver-label {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.modal-ver-yes {
  background: rgba(52, 199, 89, 0.1);
}

.modal-ver-yes .modal-ver-num {
  color: #34C759;
}

.modal-ver-yes .modal-ver-label {
  color: #34C759;
}

.modal-ver-no {
  background: rgba(199, 199, 204, 0.15);
}

.modal-ver-no .modal-ver-num {
  color: #C7C7CC;
}

.modal-ver-no .modal-ver-label {
  color: #C7C7CC;
}

.modal-ver-na {
  background: rgba(0, 0, 0, 0.02);
}

.modal-ver-na .modal-ver-num {
  color: #D1D1D6;
}

.modal-ver-na .modal-ver-label {
  color: #D1D1D6;
}

.modal-view-table-btn {
  width: 100%;
  padding: 10px 20px;
  border: none;
  border-radius: 980px;
  background: var(--brand-blue);
  color: white;
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.modal-view-table-btn:hover {
  background: var(--brand-blue-hover);
  transform: scale(1.01);
}

/* ===== Compatibility row highlight ===== */
.compat-row-highlight {
  animation: rowHighlight 2.5s var(--ease-apple);
}

@keyframes rowHighlight {
  0% { background: rgba(0, 113, 227, 0.15); }
  70% { background: rgba(0, 113, 227, 0.08); }
  100% { background: transparent; }
}

/* ===== Nav CTA as button ===== */
button.nav-cta {
  font-family: var(--font-text);
  border: none;
  cursor: pointer;
}

/* ===== Mobile CTA in menu ===== */
.nav-mobile-cta {
  background: none;
  border: none;
  font-family: var(--font-text);
  cursor: pointer;
  text-align: left;
  color: var(--brand-blue);
  font-weight: 500;
}

/* ===== Hero badge as button ===== */
button.hero-badge {
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
}

/* ============================================
   Hero Recycle Button
   ============================================ */
.hero-recycle-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border: none;
  border-radius: 980px;
  background: linear-gradient(135deg, #34C759 0%, #30D158 100%);
  color: #fff;
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 8px;
  box-shadow: 0 4px 16px rgba(52, 199, 89, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: recyclePulse 2.5s ease-in-out infinite;
}

.hero-recycle-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 28px rgba(52, 199, 89, 0.45);
  animation: none;
}

@keyframes recyclePulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(52, 199, 89, 0.35); }
  50% { box-shadow: 0 4px 28px rgba(52, 199, 89, 0.55); }
}

.hero-recycle-btn svg {
  flex-shrink: 0;
}

.hero-recycle-hint {
  font-size: 14px;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.02em;
  margin-bottom: 48px;
}

/* ============================================
   Recycle Modal
   ============================================ */
.recycle-modal {
  max-width: 520px;
  padding: 32px;
}

.recycle-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.recycle-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #E8F5E9, #C8E6C9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #34C759;
  flex-shrink: 0;
}

.recycle-header .modal-title {
  margin-bottom: 4px;
}

.recycle-header .modal-desc {
  margin-bottom: 0;
}

/* Steps indicator */
.recycle-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 28px;
  padding: 0 16px;
}

.recycle-step {
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.4;
  transition: opacity var(--transition-fast);
}

.recycle-step.active {
  opacity: 1;
}

.recycle-step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.recycle-step.active .recycle-step-num {
  background: var(--brand-blue);
  color: white;
}

.recycle-step-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.recycle-step-line {
  width: 32px;
  height: 1px;
  background: var(--divider);
  margin: 0 8px;
}

/* Panels */
.recycle-panel {
  display: none;
  animation: fadeIn 0.3s var(--ease-apple);
}

.recycle-panel.active {
  display: block;
}

.recycle-panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

/* Model grid */
.recycle-search {
  position: relative;
  margin-bottom: 14px;
}

.recycle-model-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
  padding: 2px;
  margin-bottom: 16px;
}

.recycle-model-btn {
  padding: 9px 12px;
  border: 1px solid var(--divider);
  border-radius: 8px;
  background: transparent;
  font-family: var(--font-text);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recycle-model-btn:hover {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.15);
}

.recycle-model-btn--active {
  background: rgba(0, 113, 227, 0.08);
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  font-weight: 500;
}

/* Storage options */
.recycle-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.recycle-option-btn {
  flex: 1;
  min-width: 80px;
  padding: 14px 12px;
  border: 1px solid var(--divider);
  border-radius: 10px;
  background: transparent;
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}

.recycle-option-btn:hover {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.15);
}

.recycle-option-btn--active {
  background: rgba(0, 113, 227, 0.08);
  border-color: var(--brand-blue);
  color: var(--brand-blue);
}

/* Condition items */
.recycle-condition-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.recycle-condition-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--divider);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  text-align: left;
  width: 100%;
  font-family: var(--font-text);
  transition: all var(--transition-fast);
}

.recycle-condition-item:hover {
  background: rgba(0, 0, 0, 0.02);
  border-color: rgba(0, 0, 0, 0.12);
}

.recycle-condition-item--active {
  background: rgba(0, 113, 227, 0.06);
  border-color: var(--brand-blue);
}

.recycle-condition-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-secondary);
}

.recycle-condition-item--active .recycle-condition-icon {
  background: rgba(0, 113, 227, 0.1);
  color: var(--brand-blue);
}

.recycle-condition-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.recycle-condition-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.recycle-condition-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.4;
}

/* Navigation buttons */
.recycle-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  border-top: 1px solid var(--divider);
}

.recycle-next-btn,
.recycle-back-btn {
  padding: 10px 24px;
  border-radius: 980px;
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.recycle-next-btn {
  border: none;
  background: var(--brand-blue);
  color: white;
}

.recycle-next-btn:hover:not(:disabled) {
  background: var(--brand-blue-hover);
}

.recycle-next-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.recycle-back-btn {
  border: 1px solid var(--divider);
  background: transparent;
  color: var(--text-secondary);
}

.recycle-back-btn:hover {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

/* Result panel */
.recycle-result {
  text-align: center;
  padding: 16px 0;
}

.recycle-result-icon {
  margin-bottom: 16px;
}

.recycle-result-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.recycle-result-price {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.recycle-result-summary {
  background: var(--bg-primary);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 24px;
  text-align: left;
}

.recycle-summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--divider);
}

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

.recycle-summary-row span:first-child {
  color: var(--text-tertiary);
  font-weight: 400;
}

.recycle-summary-row span:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

.recycle-market-range {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.08) 0%, rgba(0, 113, 227, 0.06) 100%);
  border-radius: 10px;
  margin-bottom: 4px;
}

.recycle-market-label {
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 400;
}

.recycle-market-values {
  font-size: 15px;
  color: var(--brand-blue);
  font-weight: 600;
  font-family: var(--font-mono);
}

.recycle-summary-divider {
  height: 1px;
  background: var(--divider);
  margin: 8px 0;
}

.recycle-price-note {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 300;
  line-height: 1.5;
  margin-top: 8px;
  padding: 0 4px;
}

.recycle-reset-btn {
  padding: 12px 32px;
  border: 1px solid var(--divider);
  border-radius: 980px;
  background: transparent;
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.recycle-reset-btn:hover {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

/* Recycle modal responsive */
@media (max-width: 768px) {
  .hero-recycle-btn {
    font-size: 15px;
    padding: 12px 24px;
  }

  .recycle-modal {
    padding: 24px 20px;
  }

  .recycle-model-grid {
    grid-template-columns: 1fr;
    max-height: 180px;
  }

  .recycle-options {
    gap: 8px;
  }

  .recycle-option-btn {
    min-width: 60px;
    padding: 12px 8px;
    font-size: 14px;
  }

  .recycle-condition-desc {
    display: none;
  }

  .recycle-result-price {
    font-size: 40px;
  }

  .recycle-step-label {
    display: none;
  }
}

/* ==================== Customer Service Chat Widget ==================== */
.chat-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0071E3, #00C7FF);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 113, 227, 0.4);
  z-index: 1000;
  transition: transform 300ms cubic-bezier(0.25, 0.1, 0.25, 1.0), box-shadow 300ms ease;
}

.chat-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(0, 113, 227, 0.5);
}

.chat-fab:active {
  transform: scale(0.96);
}

.chat-fab-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #FF3B30;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.chat-popup {
  position: fixed;
  bottom: 100px;
  right: 32px;
  width: 360px;
  max-height: 520px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 16px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  pointer-events: none;
  transition: opacity 300ms cubic-bezier(0.25, 0.1, 0.25, 1.0), transform 300ms cubic-bezier(0.25, 0.1, 0.25, 1.0);
}

.chat-popup--open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.chat-popup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: linear-gradient(135deg, #0071E3, #00C7FF);
  color: #fff;
}

.chat-popup-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chat-popup-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chat-popup-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.chat-popup-status {
  font-size: 11px;
  opacity: 0.85;
  display: flex;
  align-items: center;
  gap: 4px;
}

.chat-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34C759;
  display: inline-block;
}

.chat-popup-close {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 200ms ease;
}

.chat-popup-close:hover {
  background: rgba(255, 255, 255, 0.25);
}

.chat-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 280px;
  max-height: 340px;
}

.chat-message {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-message--bot {
  align-self: flex-start;
  background: #F5F5F7;
  color: #1D1D1F;
  border-bottom-left-radius: 4px;
}

.chat-message--user {
  align-self: flex-end;
  background: linear-gradient(135deg, #0071E3, #00C7FF);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px 0;
}

.chat-quick-reply {
  padding: 6px 12px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(0, 113, 227, 0.2);
  color: #0071E3;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 200ms ease;
}

.chat-quick-reply:hover {
  background: #0071E3;
  color: #fff;
  border-color: #0071E3;
}

.chat-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.8);
}

.chat-telegram-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0088CC, #00C7FF);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  text-decoration: none;
  transition: transform 200ms ease, box-shadow 200ms ease;
  box-shadow: 0 2px 8px rgba(0, 136, 204, 0.3);
}

.chat-telegram-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 12px rgba(0, 136, 204, 0.4);
}

.chat-input {
  flex: 1;
  height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 18px;
  font-size: 13px;
  font-family: inherit;
  background: #fff;
  color: #1D1D1F;
  outline: none;
  transition: border-color 200ms ease;
}

.chat-input:focus {
  border-color: #0071E3;
}

.chat-input::placeholder {
  color: #86868B;
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #0071E3;
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 200ms ease, transform 200ms ease;
}

.chat-send-btn:hover {
  background: #0077ED;
  transform: scale(1.05);
}

.chat-send-btn:active {
  transform: scale(0.95);
}

@media (max-width: 480px) {
  .chat-popup {
    right: 12px;
    left: 12px;
    width: auto;
    bottom: 90px;
  }

  .chat-fab {
    bottom: 20px;
    right: 20px;
  }
}