/**
 * TTDS Layer 3 — Components (BTN, CRD, BDG)
 */

/* 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-8);
  border-radius: var(--tt-radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--tt-dur-fast) var(--tt-ease),
    box-shadow var(--tt-dur-fast) var(--tt-ease),
    background var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-btn--primary {
  background: var(--tt-obsidian);
  color: var(--tt-canvas);
  min-width: 120px;
}

body.tt-premium .tt-btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--tt-shadow-sm);
}

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

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

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

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);
}

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

body.tt-premium .tt-btn--lg {
  min-height: 52px;
}

body.tt-premium .tt-btn--sm {
  min-height: 36px;
  padding-inline: var(--tt-space-4);
  font-size: 0.8125rem;
}

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

body.tt-premium .tt-btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* BDG — Badges */
body.tt-premium .tt-bdg {
  display: inline-flex;
  align-items: center;
  gap: var(--tt-space-1);
  padding: 4px 10px;
  border-radius: var(--tt-radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.2;
}

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-obsidian);
  background: transparent;
}

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: transform var(--tt-dur-fast) var(--tt-ease),
    box-shadow var(--tt-dur-fast) var(--tt-ease);
  text-decoration: none;
  color: inherit;
  display: block;
}

body.tt-premium .tt-crd:hover {
  transform: translateY(-4px);
  box-shadow: var(--tt-shadow-md);
}

body.tt-premium .tt-crd__media {
  aspect-ratio: 1;
  background: var(--tt-canvas-muted);
  padding: var(--tt-space-4);
  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-4);
}

body.tt-premium .tt-crd__cat {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tt-slate);
  margin: 0 0 var(--tt-space-2);
}

body.tt-premium .tt-crd__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 0 0 var(--tt-space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

body.tt-premium .tt-crd__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tt-space-2);
}

/* 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: var(--tt-canvas);
  border: 1px solid var(--tt-line);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-icon-btn:hover {
  border-color: var(--tt-line-strong);
}

body.tt-premium .tt-icon-btn--active {
  background: var(--tt-signal-soft);
  border-color: var(--tt-signal);
  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: 4;
}

body.tt-premium .tt-score__fill {
  fill: none;
  stroke: var(--tt-signal);
  stroke-width: 4;
  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: 1rem;
  font-weight: 600;
}

body.tt-premium .tt-score__label {
  font-size: 0.625rem;
  color: var(--tt-slate);
  font-weight: 500;
}

/* Product grid — shared Shop / Home / Collections */
body.tt-premium .tt-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--tt-space-8);
  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: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--tt-slate);
  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;
}

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

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

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

/* Filter chips — CHP component */
body.tt-premium .tt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tt-space-2);
  margin-bottom: var(--tt-space-8);
  min-height: var(--tt-touch);
}

body.tt-premium .tt-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--tt-space-2) var(--tt-space-4);
  border-radius: var(--tt-radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  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);
  min-height: 36px;
}

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

/* Form input — select / text (TTDS) */
body.tt-premium .tt-input {
  width: 100%;
  height: 52px;
  padding: 0 var(--tt-space-4);
  border-radius: var(--tt-radius-md);
  border: 1px solid transparent;
  background: var(--tt-canvas-muted);
  font-size: 1rem;
  font-family: inherit;
  color: var(--tt-obsidian);
  transition: box-shadow var(--tt-dur-fast) var(--tt-ease);
}

body.tt-premium .tt-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--tt-signal-ring);
}

body.tt-premium .tt-input--sort {
  width: auto;
  min-width: 12rem;
  height: 44px;
}

/* Mobile bottom nav — shared Home / Shop */
body.tt-premium--has-mob-nav {
  padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
}

body.tt-premium--has-mob-nav .tt-fab-wa {
  bottom: calc(88px + env(safe-area-inset-bottom, 0px));
}

body.tt-premium .tt-mob-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  height: calc(64px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: var(--tt-canvas);
  border-top: 1px solid var(--tt-line);
}

body.tt-premium .tt-mob-nav__inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 64px;
}

body.tt-premium .tt-mob-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--tt-slate);
  text-decoration: none;
}

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

body.tt-premium .tt-mob-nav__link .tt-icon {
  width: 22px;
  height: 22px;
}

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

@media (max-width: 768px) {
  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);
  }
}

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