/*
 * ═══════════════════════════════════════════════════════════════
 * Kevron Group — Design System
 * Tailwind CSS base + custom design tokens, buttons, scrollbar,
 * typography caps, layout widths, motion, and component styles.
 * ═══════════════════════════════════════════════════════════════
 */

/* ─── Tailwind Layers ────────────────────────────────────────── */
/* Using CDN — directives are handled by the Play CDN script */


/* ─── Token References (all tokens defined in theme-tokens.css) ─ */
/* Section backgrounds use token aliases for backward compat */
:root {
  --bg-section-1: var(--bg-surface-1);
  --bg-section-2: var(--bg-surface-2);
  --bg-section-3: var(--bg-surface-3);
  --bg-section-4: var(--bg-surface-4);
  --shadow-card: var(--shadow-lg);
}

/* ─── Base Styles ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--kg-font-body);
  font-size: var(--kg-text-body);
  line-height: var(--kg-line-body);
  background: var(--bg-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* body text color driven by --text-primary token */

/* ─── Typography Caps & Scales ───────────────────────────────── */
h1, .h1 { font-family: var(--kg-font-heading); font-size: var(--kg-h1) !important; font-weight: 800; line-height: var(--kg-line-heading); letter-spacing: var(--kg-letter-heading); }
h2, .h2 { font-family: var(--kg-font-heading); font-size: var(--kg-h2) !important; font-weight: 700; line-height: var(--kg-line-heading); letter-spacing: var(--kg-letter-heading); }
h3, .h3 { font-family: var(--kg-font-heading); font-size: var(--kg-h3) !important; font-weight: 700; line-height: var(--kg-line-heading); letter-spacing: var(--kg-letter-heading); }
h4, .h4 { font-family: var(--kg-font-heading); font-size: var(--kg-h4) !important; font-weight: 600; line-height: var(--kg-line-heading); letter-spacing: var(--kg-letter-heading); }
h5, .h5 { font-family: var(--kg-font-heading); font-size: var(--kg-h5) !important; font-weight: 600; line-height: var(--kg-line-heading); }
h6, .h6 { font-family: var(--kg-font-heading); font-size: var(--kg-h6) !important; font-weight: 600; line-height: var(--kg-line-heading); }

p, li {
  font-family: var(--kg-font-body);
  font-size: var(--kg-text-body);
  line-height: var(--kg-line-body);
}

button, input, select, textarea, nav, .btn, .kg-btn {
  font-family: var(--kg-font-ui);
}

.font-heading { font-family: var(--kg-font-heading); }
.overline { 
  font-size: 0.72rem; 
  text-transform: uppercase; 
  letter-spacing: 0.08em; 
  font-weight: 700; 
  font-family: var(--kg-font-heading);
}
p, li, td, th, span, a, label, input, select, textarea, button {
  font-size: inherit;
}

/* ─── Global Class Utilities ─────────────────────────────────── */
.kg-heading {
  font-family: var(--kg-font-heading);
  letter-spacing: var(--kg-letter-heading);
  line-height: var(--kg-line-heading);
}
.kg-body {
  font-family: var(--kg-font-body);
  font-size: var(--kg-text-body);
  line-height: var(--kg-line-body);
}
.kg-ui {
  font-family: var(--kg-font-ui);
  line-height: var(--kg-line-ui);
}
.kg-technical {
  font-family: var(--kg-font-technical);
}
.kg-mono {
  font-family: var(--kg-font-mono) !important;
}

/* ─── Section Content Widths ─────────────────────────────────── */
.kv-container {
  width: var(--content-width-mobile);
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 1024px) {
  .kv-container {
    width: var(--content-width-desktop);
  }
}
.kv-container-full { width: 100%; }

/* ─── Section Backgrounds ────────────────────────────────────── */
.kv-section { padding: 4rem 0; }
.kv-section-1 { background: var(--bg-section-1); }
.kv-section-2 { background: var(--bg-section-2); }
.kv-section-3 { background: var(--bg-section-3); }
.kv-section-4 { background: var(--bg-section-4); }
.kv-section-dark { background: #07111F !important; color: #ffffff !important; }
.kv-section-dark h2 { color: #ffffff !important; }
.kv-section-dark p { color: #cbd5e1 !important; }

/* ─── Glossy 3D Buttons (STRICT — 50px radius, glossy shading) ─ */
.kv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.75rem;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: var(--body-max);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
  text-decoration: none;
  white-space: nowrap;
}
.kv-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), rgba(255,255,255,0.05));
  border-radius: var(--radius-btn) var(--radius-btn) 0 0;
  pointer-events: none;
}
.kv-btn:active {
  transform: scale(0.96) translateY(1px);
  transition: transform 0.1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Button colours — Kevron Executive Assurance palette */
.kv-btn-primary { background: var(--kg-gradient-button); color: #fff; box-shadow: 0 8px 20px rgba(0,138,91,0.30); }
.kv-btn-primary:hover { background: linear-gradient(135deg, #00A96E, #00C4D4); box-shadow: 0 12px 28px rgba(0,138,91,0.40); transform: translateY(-2px); }

.kv-btn-secondary { background: linear-gradient(135deg, var(--kg-primary-navy), #0D2F4F); color: #fff; box-shadow: 0 4px 12px rgba(7,31,58,0.30); }
.kv-btn-secondary:hover { background: linear-gradient(135deg, #0D2F4F, var(--kg-primary-navy)); box-shadow: 0 6px 20px rgba(7,31,58,0.40); transform: translateY(-2px); }

.kv-btn-success { background: linear-gradient(135deg, var(--kg-primary-green), var(--kg-accent-teal)); color: #fff; box-shadow: 0 4px 12px rgba(0,138,91,0.30); }
.kv-btn-success:hover { background: linear-gradient(135deg, #00A96E, #00C4D4); box-shadow: 0 6px 20px rgba(0,138,91,0.40); transform: translateY(-2px); }

.kv-btn-danger { background: linear-gradient(135deg, var(--btn-danger), #bd2130); color: #fff; box-shadow: 0 4px 12px rgba(220,53,69,0.30); }
.kv-btn-danger:hover { background: linear-gradient(135deg, #e4606d, var(--btn-danger)); box-shadow: 0 6px 20px rgba(220,53,69,0.40); transform: translateY(-2px); }

.kv-btn-warning { background: var(--kg-gradient-gold); color: #071F3A; font-weight: 700; box-shadow: 0 4px 12px rgba(245,179,1,0.30); }
.kv-btn-warning:hover { background: linear-gradient(135deg, #FFD76A, #F5B301); box-shadow: 0 6px 20px rgba(245,179,1,0.40); transform: translateY(-2px); }

.kv-btn-info { background: linear-gradient(135deg, var(--kg-accent-teal), #007E8A); color: #fff; box-shadow: 0 4px 12px rgba(0,167,181,0.30); }
.kv-btn-info:hover { background: linear-gradient(135deg, #00C4D4, var(--kg-accent-teal)); box-shadow: 0 6px 20px rgba(0,167,181,0.40); transform: translateY(-2px); }

/* Brand button: Deep Navy → Kevron Blue gradient */
.kv-btn-brand { background: linear-gradient(135deg, var(--kg-primary-navy), var(--kg-primary-blue)); color: #fff; box-shadow: 0 4px 14px rgba(7,31,58,0.30); }
.kv-btn-brand:hover { background: linear-gradient(135deg, var(--kg-primary-blue), #1A7CC9); box-shadow: 0 8px 24px rgba(7,31,58,0.40); transform: translateY(-2px); }

/* Accent button: Kevron Green → Teal (primary CTA) */
.kv-btn-accent { background: var(--kg-gradient-button); color: #fff; box-shadow: 0 8px 20px rgba(0,138,91,0.28); }
.kv-btn-accent:hover { background: linear-gradient(135deg, #00A96E, #00C4D4); box-shadow: 0 12px 28px rgba(0,138,91,0.38); transform: translateY(-2px); }

.kv-btn-outline { background: transparent; border: 2px solid var(--kg-primary-green); color: var(--kg-primary-green); }
.kv-btn-outline:hover { background: var(--kg-primary-green); color: #fff; transform: translateY(-2px); }
.kv-btn-outline::before { display: none; }

/* ── New semantic button aliases ─────────────────────────────── */
/* Green→Teal — primary action */
.kg-btn-primary { background: var(--kg-gradient-button); color: #fff; border-radius: var(--radius-btn); font-weight: 600; box-shadow: 0 12px 28px rgba(0,138,91,0.24); display:inline-flex;align-items:center;gap:0.5rem;padding:0.625rem 1.75rem;cursor:pointer;border:none;text-decoration:none;transition:all var(--transition-slow);position:relative;overflow:hidden; }
.kg-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(0,138,91,0.32); background: linear-gradient(135deg, #00A96E, #00C4D4); }
.kg-btn-primary:active { transform: scale(0.96) translateY(1px); }

/* Deep Navy — authority/corporate */
.kg-btn-navy { background: linear-gradient(135deg, var(--kg-primary-navy), #0D2F4F); color: #fff; border-radius: var(--radius-btn); font-weight: 600; box-shadow: 0 8px 20px rgba(7,31,58,0.28); display:inline-flex;align-items:center;gap:0.5rem;padding:0.625rem 1.75rem;cursor:pointer;border:none;text-decoration:none;transition:all var(--transition-slow); }
.kg-btn-navy:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(7,31,58,0.38); }

/* Kevron Green */
.kg-btn-green { background: linear-gradient(135deg, var(--kg-primary-green), #006644); color: #fff; border-radius: var(--radius-btn); font-weight: 600; box-shadow: 0 8px 20px rgba(0,138,91,0.28); display:inline-flex;align-items:center;gap:0.5rem;padding:0.625rem 1.75rem;cursor:pointer;border:none;text-decoration:none;transition:all var(--transition-slow); }
.kg-btn-green:hover { transform: translateY(-2px); background: linear-gradient(135deg, #00A96E, var(--kg-primary-green)); }

/* Safety Gold — sparingly for premium actions */
.kg-btn-gold { background: var(--kg-gradient-gold); color: #071F3A; border-radius: var(--radius-btn); font-weight: 700; box-shadow: 0 8px 20px rgba(245,179,1,0.28); display:inline-flex;align-items:center;gap:0.5rem;padding:0.625rem 1.75rem;cursor:pointer;border:none;text-decoration:none;transition:all var(--transition-slow); }
.kg-btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(245,179,1,0.38); }

/* Button sizes */
.kv-btn-sm { padding: 0.375rem 1.25rem; font-size: 0.8rem; }
.kv-btn-lg { padding: 0.875rem 2.25rem; }

/* ─── Progressive Border Button (Gradient CTA) ──────────────── */
.kv-btn-progressive {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: var(--body-max);
  cursor: pointer;
  border: none;
  color: var(--accent-contrast);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  z-index: 1;
  transition: all var(--transition-slow);
  text-decoration: none;
}
.kv-btn-progressive::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--radius-btn) + 3px);
  background: linear-gradient(135deg, var(--accent-light), var(--state-success), var(--accent-dark), var(--accent-light));
  background-size: 300% 300%;
  z-index: -1;
  animation: progressiveBorder 4s ease infinite;
}
.kv-btn-progressive::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: calc(var(--radius-btn) - 2px);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  z-index: -1;
}
.kv-btn-progressive:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(var(--accent-rgb),0.4);
}
.kv-btn-progressive:active {
  transform: scale(0.97);
}

@keyframes progressiveBorder {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ─── Cards (0.1rem radius, hover bg, shadow-lg, cdcare-style tints) ──── */
.kv-card {
  background: var(--bg-section-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-medium), background var(--transition-slow);
  overflow: hidden;
}
.kv-card:hover {
  background: var(--card-bg-hover);
  border-color: rgba(0, 138, 91, 0.32);
  box-shadow: 0 0 0 1px rgba(0, 138, 91, 0.10), var(--shadow-xl);
}

/* cdcare-inspired directional surface card tints */
.kv-card-tint-sky   { background: var(--card-tint-sky); }
.kv-card-tint-mint  { background: var(--card-tint-mint); }
.kv-card-tint-gold  { background: var(--card-tint-gold); }

/* cdcare-inspired translucent glass card on dark sections */
.kv-card-glass-dark,
.kg-section-dark .kv-card,
[data-theme="dark"] .kv-card {
  background: var(--card-glass-dark);
  border-color: var(--card-glass-dark-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.kv-card-glass-dark:hover,
.kg-section-dark .kv-card:hover,
[data-theme="dark"] .kv-card:hover {
  background: var(--card-glass-dark-hover);
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.15), var(--shadow-xl);
}

/* ─── Scrollbar Styling ──────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-light); }

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--scrollbar-track);
}

/* ─── Scroll Progress Bar ────────────────────────────────────── */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: var(--scroll-progress);
  background: linear-gradient(90deg, var(--kg-primary-navy), var(--kg-primary-green), var(--kg-accent-teal));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ─── Skeleton Loaders ───────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--skeleton-from) 25%, var(--skeleton-via) 37%, var(--skeleton-from) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: var(--radius-card);
}
.skeleton-text { height: 0.9rem; margin-bottom: 0.5rem; }
.skeleton-title { height: 1.5rem; width: 60%; margin-bottom: 0.75rem; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: 50%; }
.skeleton-image { width: 100%; height: 200px; }
.skeleton-card { height: 300px; }
.skeleton-list-item { height: 60px; margin-bottom: 0.5rem; }
.skeleton-table-row { height: 48px; margin-bottom: 0.25rem; }
.skeleton-dashboard { height: 160px; }
.skeleton-search-result { height: 100px; margin-bottom: 0.75rem; }
.skeleton-group { margin-bottom: 0.25rem; }
.kv-skeleton-wrapper { transition: opacity 0.2s ease; }

@keyframes shimmer {
  0% { background-position: -400% 0; }
  100% { background-position: 400% 0; }
}

/* ─── Toast Notifications ────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: calc(var(--nav-height) + 1rem);
  right: 1rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 400px;
}
.toast {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease;
  cursor: default;
}
.toast:focus { outline: 2px solid rgba(255,255,255,0.6); outline-offset: 2px; }
.toast-icon { flex-shrink: 0; }
.toast-dismiss {
  font-size: 1.25rem;
  line-height: 1;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0 0.25rem;
}
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: rgba(255,255,255,0.5);
  animation: toastProgress linear forwards;
}
.toast-success { background: var(--btn-success); color: #fff; }
.toast-danger { background: var(--btn-danger); color: #fff; }
.toast-warning { background: var(--btn-warning); color: #212529; }
.toast-info { background: var(--btn-info); color: #fff; }
.toast-copied { background: var(--brand-accent); color: #fff; }
.toast-uploaded { background: var(--btn-success); color: #fff; }
.toast-exported { background: var(--brand-accent); color: #fff; }
.toast-saved { background: var(--btn-success); color: #fff; }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes toastProgress {
  from { width: 100%; }
  to { width: 0%; }
}

/* ─── Back to Top Button ─────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 6.5rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--accent-contrast);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-slow);
  z-index: 9990;
  box-shadow: 0 4px 15px rgba(var(--accent-rgb),0.3);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 6px 20px rgba(var(--accent-rgb),0.45);
}

/* ─── Input Focus Bounce ─────────────────────────────────────── */
input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-focus-ring);
  border-color: var(--input-focus-border) !important;
  transition: box-shadow 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), border-color var(--transition-medium);
}

/* ─── Link Transitions ───────────────────────────────────────── */
a {
  transition: color var(--transition-slow), background-color var(--transition-slow);
}

/* ─── Reduced Motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .scroll-progress-bar { transition: none; }
  .kv-btn:active { transform: none; }
  .kv-btn:hover { transform: none; }
  .kv-btn-progressive:hover { transform: none; }
  .kv-btn-progressive::before { animation: none; }
  .page-transition-overlay { transition: none; }
  .toast { animation: none; }
  .skeleton { animation: none; }
  [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none !important; }
}

/* ─── High Contrast Mode (token overrides in theme-tokens.css) ── */
[data-contrast="high"] a { text-decoration: underline; }
[data-contrast="high"] .kv-card { border: 2px solid var(--border-default); }
[data-contrast="high"] .kv-btn { border: 2px solid currentColor; }

/* ─── Print Stylesheet ───────────────────────────────────────── */
@media print {
  .scroll-progress-bar, .back-to-top, .toast-container,
  .chatbot-widget, .cookie-consent, .accessibility-widget,
  .theme-switcher, nav, footer { display: none !important; }
  body { background: #fff !important; color: #000 !important; font-size: 12pt; }
  .kv-container { width: 100% !important; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
  .kv-card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; }
}

/* ─── Page Transition Overlay ────────────────────────────────── */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  background: var(--accent);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.page-transition-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.page-transition-loader {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── View Transition API (progressive enhancement) ──────────── */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.2s;
  animation-timing-function: ease;
}

/* ─── Navigation State Classes ───────────────────────────────── */
#mainNav {
  transition: transform 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}
#mainNav.nav--hidden {
  transform: translateY(-100%);
}
.nav--scrolled {
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
}

/* ─── Scroll Reveal Elements ─────────────────────────────────── */
[data-reveal] {
  will-change: opacity, transform;
}

/* ─── Font Size Accessibility Override ────────────────────────── */
[data-fontsize="large"] { font-size: 110% !important; }
[data-fontsize="x-large"] { font-size: 125% !important; }

/* ─── Form Elements ──────────────────────────────────────────── */
.kv-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.kv-input {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-card);
  font-size: 0.85rem;
  font-family: var(--font-family);
  color: var(--input-text);
  background: var(--input-bg);
  transition: border-color var(--transition-medium), box-shadow 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.kv-input::placeholder { color: var(--input-placeholder); }
.kv-input:focus {
  outline: none;
  border-color: var(--input-focus-border) !important;
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}
.kv-input.border-btn-danger { border-color: var(--btn-danger) !important; }
.kv-input.border-btn-danger:focus { box-shadow: 0 0 0 3px rgba(220,53,69,0.15); }

.kv-field-error {
  display: block;
  font-size: 0.72rem;
  color: var(--btn-danger);
  margin-top: 0.25rem;
  min-height: 0;
}
.kv-field-error:empty { display: none; }

/* ─── Filter Selects ─────────────────────────────────────────── */
.kv-filter-select {
  appearance: none;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-btn);
  font-size: 0.78rem;
  font-family: var(--font-family);
  color: var(--text-secondary);
  background: var(--input-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") right 0.5rem center/16px no-repeat;
  cursor: pointer;
  transition: border-color var(--transition-medium), box-shadow 0.3s ease;
  white-space: nowrap;
}
.kv-filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-focus-ring);
}
.kv-filter-select:hover { border-color: var(--accent); }

/* ─── Chips ──────────────────────────────────────────────────── */
.kv-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-btn);
  background: var(--chip-bg);
  color: var(--chip-text);
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
}
.chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  transition: opacity var(--transition-fast);
}
.chip-remove:hover { opacity: 1; }

/* ─── Text Utilities ─────────────────────────────────────────── */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Course Detail Page ─────────────────────────────────────── */
.course-hero {
  min-height: 60vh;
  padding-top: var(--nav-height, 72px);
}
@media (max-width: 768px) {
  .course-hero { min-height: 50vh; }
}

.course-features-strip {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.course-features-strip::-webkit-scrollbar { display: none; }
.course-features-strip .kv-card {
  transition: all var(--transition-slow);
}
.course-features-strip .kv-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--accent-rgb),0.15);
}

/* Schedule table / cohort cards */
.schedule-card {
  transition: all var(--transition-slow);
  border-left: 3px solid transparent;
}
.schedule-card:hover {
  border-left-color: var(--accent);
}

/* Star rating input */
.star-btn {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.125rem;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.star-btn:hover { transform: scale(1.2); }
.star-btn:active { transform: scale(0.9); }

/* Review cards */
.review-card {
  transition: all var(--transition-slow);
}
.review-card:hover {
  transform: translateY(-1px);
}

/* Plyr wrapper */
.plyr-wrapper {
  position: relative;
  overflow: hidden;
}
.plyr-wrapper .aspect-video {
  aspect-ratio: 16/9;
}

/* Mode Tabs indicator */
.mode-tab-active {
  position: relative;
}
.mode-tab-active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Course section dividers */
.course-section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb),0.15), transparent);
}

/* ─── Hero Orb Animations ────────────────────────────────────── */
.hero-orb {
  animation: kvPulse 6s ease-in-out infinite;
}
@keyframes kvPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.05); }
}

/* ─── Client Logo Carousel (Unified Component) ──────────────── */
.svc-logo-carousel {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}
.svc-logo-track {
  display: flex;
  align-items: center;
  gap: 3rem;
  width: max-content;
  animation: svcLogoScroll 40s linear infinite;
}
.svc-logo-carousel:hover .svc-logo-track,
.svc-logo-carousel:focus-within .svc-logo-track {
  animation-play-state: paused;
}
.svc-logo-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  height: 60px;
  padding: 0.75rem 1.25rem;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card, 0.1rem);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.svc-logo-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--accent);
}
.svc-logo-item img {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.5;
  transition: all 0.3s ease;
}
.svc-logo-item:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

@keyframes svcLogoScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (max-width: 768px) {
  .svc-logo-track { gap: 1.5rem; animation-duration: 30s; }
  .svc-logo-item { min-width: 110px; height: 50px; padding: 0.5rem 0.75rem; }
  .svc-logo-item img { height: 28px; }
}