/* shared lab navigation switcher
   imports brand tokens so all labs inherit the knaad ser palette. */

@import url('tokens.css');

/* knaad ser brand block (used in lab__topbar via lab-nav.js) */
.ks-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  line-height: 1;
}
.ks-brand__logo {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.ks-brand__logo img {
  width: 100%;
  height: auto;
  display: block;
}
.ks-brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.ks-brand__name {
  font-family: var(--ks-font, 'Tajawal', sans-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--ks-ink, #f3f3f3);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.ks-brand__tag {
  font-family: var(--ks-font, 'Tajawal', sans-serif);
  font-size: 10px;
  color: var(--ks-accent, #00BFA6);
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
@media (max-width: 720px) {
  .ks-brand__tag { display: none; }
}
@media (max-width: 480px) {
  .ks-brand__text { display: none; }
}

/* fundamentals lesson topbar (floats above React-based lesson apps) */
.ks-fund-bar {
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  inset-inline-end: 0;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: rgba(13, 27, 42, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 9999;
  pointer-events: auto;
}
.ks-fund-bar .back {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: 8px;
  color: var(--ks-ink, #f3f3f3);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ks-line, rgba(255, 255, 255, 0.1));
  text-decoration: none;
  font-size: 16px;
  transition: 0.2s;
}
.ks-fund-bar .back:hover {
  background: rgba(0, 191, 166, 0.12);
  border-color: var(--ks-accent, #00BFA6);
  color: var(--ks-accent, #00BFA6);
}
body.has-fund-bar { padding-top: 52px; }
@media (max-width: 480px) {
  body.has-fund-bar { padding-top: 48px; }
  .ks-fund-bar { height: 48px; }
}

/* beta-launch badge */
.ks-beta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 191, 166, 0.10);
  border: 1px solid rgba(0, 191, 166, 0.35);
  color: var(--ks-accent, #00BFA6);
  font-family: var(--ks-font, 'Tajawal', sans-serif);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  line-height: 1;
}
.ks-beta::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ks-accent, #00BFA6);
  box-shadow: 0 0 6px var(--ks-accent, #00BFA6);
  animation: ksBetaPulse 2.4s ease-in-out infinite;
}
@keyframes ksBetaPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
@media (max-width: 480px) {
  .lab__topbar .ks-beta { display: none; }
}

.lab-nav-btn {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 8px;
  color: var(--ink-soft, #b5b5b5);
  background: transparent;
  border: 1px solid var(--line, #232323);
  font-family: inherit;
  font-size: 18px;
  cursor: pointer;
  transition: 0.2s;
  position: relative;
}
.lab-nav-btn:hover {
  color: var(--ink, #f3f3f3);
  border-color: var(--line-strong, #333);
}
.lab-nav-btn[aria-expanded="true"] {
  color: var(--ink, #f3f3f3);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-strong, #444);
}

.lab-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: labNavFadeIn 0.2s ease;
}
.lab-nav-overlay[hidden] { display: none; }
@keyframes labNavFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.lab-nav-panel {
  width: min(900px, 92vw);
  max-height: 85vh;
  background: #0d0d12;
  border: 1px solid #2a2a36;
  border-radius: 16px;
  padding: 24px;
  overflow-y: auto;
  animation: labNavSlideIn 0.3s cubic-bezier(0.2, 0.7, 0.3, 1);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.7);
}
@keyframes labNavSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.lab-nav-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid #1f1f28;
}
.lab-nav-panel__title {
  display: flex; flex-direction: column; gap: 2px;
}
.lab-nav-panel__title-ar {
  font-size: 18px;
  font-weight: 900;
  color: var(--ks-ink, #f3f3f3);
}
.lab-nav-panel__title-en {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ks-accent, #00BFA6);
  letter-spacing: 0.1em;
}
.lab-nav-panel__close {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #1a1a22;
  color: #888;
  font-size: 18px;
  border: none;
  cursor: pointer;
  transition: 0.2s;
}
.lab-nav-panel__close:hover { color: #fff; background: #28283a; }

.lab-nav-group {
  margin-bottom: 24px;
}
.lab-nav-group:last-child { margin-bottom: 0; }
.lab-nav-group__label {
  font-size: 11px;
  color: #6a6a80;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.lab-nav-group__label::before,
.lab-nav-group__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #1f1f28;
}

.lab-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
}

.lab-nav-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: #14141c;
  border: 1px solid #1f1f28;
  border-radius: 10px;
  text-decoration: none;
  color: #f3f3f3;
  transition: 0.2s;
  cursor: pointer;
}
.lab-nav-card:hover {
  background: #1a1a26;
  border-color: var(--lab-color, #444);
  transform: translateY(-1px);
}
.lab-nav-card[data-current="true"] {
  background: #1a1428;
  border-color: var(--lab-color, #a78bfa);
  box-shadow: 0 0 16px rgba(167, 139, 250, 0.15);
}
.lab-nav-card__icon {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-size: 20px;
  background: #0a0a10;
  border-radius: 8px;
  color: var(--lab-color, #a78bfa);
  flex-shrink: 0;
}
.lab-nav-card__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.lab-nav-card__name {
  font-size: 14px;
  font-weight: 700;
  color: #f3f3f3;
}
.lab-nav-card__sub {
  font-size: 11px;
  color: #6a6a80;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}
.lab-nav-card[data-current="true"] .lab-nav-card__sub {
  color: var(--lab-color, #a78bfa);
}
.lab-nav-card__current {
  margin-inline-start: auto;
  font-size: 10px;
  color: var(--lab-color, #a78bfa);
  font-family: 'JetBrains Mono', monospace;
  display: none;
}
.lab-nav-card[data-current="true"] .lab-nav-card__current {
  display: block;
}

.lab-nav-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid #1f1f28;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #6a6a80;
  font-family: 'JetBrains Mono', monospace;
}
.lab-nav-foot a {
  color: #a78bfa;
  text-decoration: none;
}
.lab-nav-foot a:hover { color: #c4a8ff; }

@media (max-width: 600px) {
  .lab-nav-panel { padding: 18px; }
  .lab-nav-grid { grid-template-columns: 1fr; }
}