/**
 * TTDS v2.0 — Components (BTN, CRD, BDG, CHP)
 */

/* BTN — Buttons */
body.tt-premium .tt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--tt-space-2);
  min-height: var(--tt-touch);
  padding: 0 var(--tt-space-6);
  border-radius: var(--tt-radius-md);
  font-size: var(--tt-text-md);
  font-weight: 600;
  letter-spacing: var(--tt-tracking-normal);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--tt-dur-fast) var(--tt-ease),
    border-color var(--tt-dur-fast) var(--tt-ease),
    box-shadow var(--tt-dur-fast) var(--tt-ease),
    color var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-btn--primary {
  background: var(--tt-obsidian);
  color: var(--tt-canvas);
  min-width: 128px;
  box-shadow: var(--tt-shadow-xs);
}

body.tt-premium .tt-btn--primary:hover {
  background: var(--tt-obsidian-soft);
  box-shadow: var(--tt-shadow-sm);
}

body.tt-premium .tt-btn--primary:focus-visible {
  box-shadow: 0 0 0 3px var(--tt-signal-ring);
}

body.tt-premium .tt-btn--secondary {
  background: var(--tt-canvas);
  color: var(--tt-obsidian);
  border: 1px solid var(--tt-line-strong);
}

body.tt-premium .tt-btn--secondary:hover {
  border-color: var(--tt-obsidian);
  background: var(--tt-canvas-subtle);
}

body.tt-premium .tt-btn--signal {
  background: var(--tt-signal);
  color: var(--tt-canvas);
  box-shadow: var(--tt-shadow-xs);
}

body.tt-premium .tt-btn--signal:hover {
  background: var(--tt-signal-hover);
  box-shadow: var(--tt-shadow-signal);
}

body.tt-premium .tt-btn--ghost {
  background: transparent;
  color: var(--tt-graphite);
  padding-inline: var(--tt-space-4);
  font-weight: 500;
}

body.tt-premium .tt-btn--ghost:hover {
  color: var(--tt-signal);
  background: var(--tt-signal-muted);
}

body.tt-premium .tt-btn--lg {
  min-height: 52px;
  padding-inline: var(--tt-space-8);
  font-size: var(--tt-text-base);
}

body.tt-premium .tt-btn--sm {
  min-height: 40px;
  padding-inline: var(--tt-space-5);
  font-size: var(--tt-text-sm);
}

body.tt-premium .tt-btn--full {
  width: 100%;
}

body.tt-premium .tt-btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* BDG — Badges */
body.tt-premium .tt-bdg {
  display: inline-flex;
  align-items: center;
  gap: var(--tt-space-1);
  padding: 5px 11px;
  border-radius: var(--tt-radius-full);
  font-size: var(--tt-text-xs);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

body.tt-premium .tt-bdg--signal {
  background: var(--tt-signal-soft);
  color: var(--tt-signal);
}

body.tt-premium .tt-bdg--dark {
  background: var(--tt-obsidian);
  color: var(--tt-canvas);
}

body.tt-premium .tt-bdg--outline {
  border: 1px solid var(--tt-line-strong);
  color: var(--tt-graphite);
  background: var(--tt-canvas);
}

body.tt-premium .tt-bdg-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tt-space-2);
  margin-bottom: var(--tt-space-3);
}

/* CRD — Product card */
body.tt-premium .tt-crd {
  border: 1px solid var(--tt-line);
  border-radius: var(--tt-radius-lg);
  overflow: hidden;
  background: var(--tt-canvas);
  transition:
    border-color var(--tt-dur-fast) var(--tt-ease),
    box-shadow var(--tt-dur-fast) var(--tt-ease),
    transform var(--tt-dur-fast) var(--tt-ease-em);
  text-decoration: none;
  color: inherit;
  display: block;
}

body.tt-premium .tt-crd:hover {
  transform: translateY(-2px);
  border-color: var(--tt-line-strong);
  box-shadow: var(--tt-shadow-sm);
}

body.tt-premium .tt-crd:focus-visible {
  outline: 2px solid var(--tt-signal);
  outline-offset: 2px;
}

body.tt-premium .tt-crd__media {
  aspect-ratio: 1;
  background: var(--tt-canvas-muted);
  padding: var(--tt-space-5);
  position: relative;
}

body.tt-premium .tt-crd__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--tt-radius-md);
}

body.tt-premium .tt-crd__body {
  padding: var(--tt-space-5) var(--tt-space-5) var(--tt-space-6);
}

body.tt-premium .tt-crd__cat {
  font-size: var(--tt-text-2xs);
  font-weight: 600;
  letter-spacing: var(--tt-tracking-wide);
  text-transform: uppercase;
  color: var(--tt-mist);
  margin: 0 0 var(--tt-space-2);
}

body.tt-premium--rtl .tt-crd__cat {
  text-transform: none;
  letter-spacing: 0;
  font-size: var(--tt-text-xs);
}

body.tt-premium .tt-crd__title {
  font-size: var(--tt-text-base);
  font-weight: 600;
  line-height: var(--tt-leading-snug);
  letter-spacing: var(--tt-tracking-normal);
  margin: 0 0 var(--tt-space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--tt-obsidian);
}

body.tt-premium .tt-crd__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tt-space-3);
}

/* Icon button */
body.tt-premium .tt-icon-btn {
  width: var(--tt-touch);
  height: var(--tt-touch);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--tt-radius-full);
  background: transparent;
  border: 1px solid transparent;
  color: var(--tt-graphite);
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--tt-dur-fast) var(--tt-ease),
    border-color var(--tt-dur-fast) var(--tt-ease),
    color var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-icon-btn:hover {
  background: var(--tt-canvas-muted);
  color: var(--tt-obsidian);
}

body.tt-premium .tt-icon-btn:focus-visible {
  border-color: var(--tt-signal);
  background: var(--tt-signal-muted);
}

body.tt-premium .tt-icon-btn--active {
  background: var(--tt-signal-soft);
  border-color: transparent;
  color: var(--tt-signal);
}

/* Innovation score ring */
body.tt-premium .tt-score {
  position: relative;
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}

body.tt-premium .tt-score svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

body.tt-premium .tt-score__bg {
  fill: none;
  stroke: var(--tt-line);
  stroke-width: 3.5;
}

body.tt-premium .tt-score__fill {
  fill: none;
  stroke: var(--tt-signal);
  stroke-width: 3.5;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--tt-dur-slow) var(--tt-ease-em);
}

body.tt-premium .tt-score__value {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: var(--tt-text-base);
  font-weight: 600;
  letter-spacing: var(--tt-tracking-tight);
}

body.tt-premium .tt-score__label {
  font-size: var(--tt-text-2xs);
  color: var(--tt-slate);
  font-weight: 500;
}

/* Product grid */
body.tt-premium .tt-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--tt-space-8) var(--tt-space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

body.tt-premium .tt-product-grid__item {
  min-width: 0;
  contain: layout style;
}

body.tt-premium .tt-crd__stars {
  font-size: var(--tt-text-xs);
  letter-spacing: 0.04em;
  color: var(--tt-mist);
  flex-shrink: 0;
}

body.tt-premium .tt-crd__skeleton,
body.tt-premium .tt-skeleton {
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  background: linear-gradient(
    90deg,
    var(--tt-canvas-muted) 0%,
    var(--tt-line) 50%,
    var(--tt-canvas-muted) 100%
  );
  background-size: 200% 100%;
  animation: tt-skeleton-shimmer var(--tt-dur-slower) var(--tt-ease) infinite;
  border-radius: var(--tt-radius-md);
}

@keyframes tt-skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@media (prefers-reduced-motion: reduce) {
  body.tt-premium .tt-crd,
  body.tt-premium .tt-btn,
  body.tt-premium .tt-crd__skeleton,
  body.tt-premium .tt-skeleton {
    animation: none;
    transition: none;
  }

  body.tt-premium .tt-crd:hover {
    transform: none;
  }
}

body.tt-premium .tt-crd--placeholder {
  pointer-events: none;
}

/* Filter chips */
body.tt-premium .tt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tt-space-3);
  margin-bottom: var(--tt-space-10);
  min-height: var(--tt-touch);
}

body.tt-premium .tt-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--tt-space-2) var(--tt-space-5);
  border-radius: var(--tt-radius-full);
  font-size: var(--tt-text-sm);
  font-weight: 500;
  letter-spacing: var(--tt-tracking-normal);
  border: 1px solid var(--tt-line);
  background: var(--tt-canvas);
  color: var(--tt-graphite);
  text-decoration: none;
  transition:
    border-color var(--tt-dur-fast) var(--tt-ease),
    background var(--tt-dur-fast) var(--tt-ease),
    color var(--tt-dur-fast) var(--tt-ease);
  min-height: 40px;
}

body.tt-premium .tt-chip:hover {
  border-color: var(--tt-line-strong);
  background: var(--tt-canvas-subtle);
  color: var(--tt-obsidian);
}

body.tt-premium .tt-chip.is-active {
  border-color: var(--tt-obsidian);
  background: var(--tt-obsidian);
  color: var(--tt-canvas);
}

body.tt-premium .tt-chip:focus-visible {
  outline: 2px solid var(--tt-signal);
  outline-offset: 2px;
}

/* Form input */
body.tt-premium .tt-input {
  width: 100%;
  height: 52px;
  padding: 0 var(--tt-space-5);
  border-radius: var(--tt-radius-md);
  border: 1px solid var(--tt-line);
  background: var(--tt-canvas);
  font-size: var(--tt-text-base);
  font-family: inherit;
  color: var(--tt-obsidian);
  transition:
    border-color var(--tt-dur-fast) var(--tt-ease),
    box-shadow var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-input:focus {
  outline: none;
  border-color: var(--tt-signal);
  box-shadow: 0 0 0 3px var(--tt-signal-ring);
}

body.tt-premium .tt-input--sort {
  width: auto;
  min-width: 12rem;
  height: 44px;
  font-size: var(--tt-text-sm);
}

/* Mobile bottom nav */
body.tt-premium .tt-mob-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  height: calc(68px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: var(--tt-glass);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--tt-line);
}

body.tt-premium .tt-mob-nav__inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 68px;
}

body.tt-premium .tt-mob-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: var(--tt-text-2xs);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--tt-mist);
  text-decoration: none;
  transition: color var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-mob-nav__link.is-active {
  color: var(--tt-obsidian);
  font-weight: 600;
}

body.tt-premium .tt-mob-nav__link .tt-icon {
  width: 20px;
  height: 20px;
}

@media (max-width: 1024px) {
  body.tt-premium .tt-product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--tt-space-6);
  }
}

@media (max-width: 768px) {
  body.tt-premium--has-mob-nav {
    padding-bottom: calc(68px + env(safe-area-inset-bottom, 0px));
  }

  body.tt-premium--has-mob-nav .tt-fab-wa {
    bottom: calc(92px + env(safe-area-inset-bottom, 0px));
  }

  body.tt-premium .tt-mob-nav {
    display: block;
  }

  body.tt-premium .tt-product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--tt-space-4) var(--tt-space-3);
  }
}

@media (max-width: 480px) {
  body.tt-premium .tt-product-grid {
    grid-template-columns: 1fr;
  }
}