/* Demo disclosure */
.demo-bar {
  position: relative;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0.5rem 1rem;
  color: var(--paper);
  background: var(--ink);
  border-bottom: 1px solid var(--line-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-align: center;
}

.demo-bar strong {
  color: var(--flame-yellow);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 241, 232, 0.94);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: var(--space-6);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  min-width: 144px;
}

.brand img {
  width: 146px;
  height: auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 800;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: var(--paper-2);
}

.nav-link[aria-current="page"]::after {
  position: absolute;
  right: 0.85rem;
  bottom: 0.45rem;
  left: 0.85rem;
  height: 2px;
  content: "";
  background: var(--flame-orange);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.mobile-menu-button {
  display: none;
}

.mobile-nav {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 1100;
  width: min(88vw, 390px);
  padding: 1.25rem;
  background: var(--paper);
  box-shadow: var(--shadow-deep);
  transform: translateX(104%);
  transition: transform 260ms ease;
}

.mobile-nav.is-open {
  transform: none;
}

.mobile-nav__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.mobile-nav__links {
  display: grid;
  gap: 0.55rem;
}

.mobile-nav__links a,
.mobile-nav__links button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.mobile-nav__links a:hover,
.mobile-nav__links button:hover {
  background: var(--paper-2);
}

.page-scrim {
  position: fixed;
  inset: 0;
  z-index: 1050;
  visibility: hidden;
  background: rgba(0, 0, 0, 0.48);
  opacity: 0;
  transition: opacity 220ms ease, visibility 220ms ease;
}

.page-scrim.is-visible {
  visibility: visible;
  opacity: 1;
}

/* Buttons */
.btn,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: var(--radius-pill);
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn {
  gap: 0.6rem;
  padding: 0.9rem 1.15rem;
}

.btn:hover,
.icon-button:hover {
  transform: translateY(-2px);
}

.btn:active,
.icon-button:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--flame-yellow);
  color: var(--ink);
}

.btn--primary:hover {
  background: #ffd154;
}

.btn--dark {
  background: var(--ink);
  color: var(--paper);
}

.btn--outline {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
}

.btn--light-outline {
  border: 1px solid var(--line-light);
  background: transparent;
  color: var(--paper);
}

.btn--block {
  width: 100%;
}

.icon-button {
  width: 46px;
  min-width: 46px;
  padding: 0;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
}

.icon {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 28px;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.67rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tag--verified {
  background: #dbeadd;
  color: #174b29;
}

.tag--demo {
  background: var(--flame-yellow);
  color: var(--ink);
}

.tag--dark {
  border: 1px solid var(--line-light);
  color: var(--paper);
  background: rgba(255, 255, 255, 0.05);
}

/* Media */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--paper-3);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
}

/* Cards */
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.card--dark {
  border-color: var(--line-light);
  background: var(--ink-soft);
  color: var(--paper);
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.quick-fact {
  padding: 1.25rem;
}

.quick-fact + .quick-fact {
  border-left: 1px solid var(--line);
}

.quick-fact__label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quick-fact__value {
  font-size: 1rem;
  font-weight: 900;
}

/* Product card */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

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

.product-card.is-filtered-out {
  display: none;
}

.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--paper-2);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.product-card:hover .product-card__media img {
  transform: scale(1.03);
}

.product-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.15rem;
}

.product-card__meta,
.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.product-card__meta {
  margin-bottom: 0.9rem;
}

.product-card__body p {
  color: var(--muted);
}

.product-card__footer {
  margin-top: auto;
  padding-top: 0.75rem;
}

.demo-price {
  display: grid;
  line-height: 1;
}

.demo-price strong {
  font-size: 1.2rem;
}

.demo-price small {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Filters */
.filter-bar {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 0.2rem 0 0.8rem;
  scrollbar-width: thin;
}

.filter-button {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--white);
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.filter-button[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card {
  min-height: 260px;
  padding: 1.4rem;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
}

.feature-card__icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 2.4rem;
  place-items: center;
  border-radius: 14px;
  background: var(--flame-yellow);
  color: var(--ink);
}

.feature-card button {
  padding: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: var(--paper);
  font-weight: 900;
  cursor: pointer;
}

/* FAQ */
.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-question {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.3rem 0;
  background: transparent;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.faq-question .faq-plus {
  font-size: 1.4rem;
  transition: transform 180ms ease;
}

.faq-question[aria-expanded="true"] .faq-plus {
  transform: rotate(45deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 200ms ease;
}

.faq-answer > div {
  overflow: hidden;
}

.faq-answer p {
  max-width: 70ch;
  margin-bottom: 1.3rem;
  color: var(--muted);
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
}

/* Modal */
.demo-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: grid;
  visibility: hidden;
  place-items: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 180ms ease, visibility 180ms ease;
}

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

.demo-modal__panel {
  width: min(100%, 520px);
  max-height: min(86vh, 720px);
  overflow: auto;
  padding: 1.4rem;
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-deep);
  transform: translateY(14px) scale(0.98);
  transition: transform 180ms ease;
}

.demo-modal.is-open .demo-modal__panel {
  transform: none;
}

.demo-modal__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.demo-modal__icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 1rem;
  place-items: center;
  border-radius: 18px;
  background: var(--flame-yellow);
  font-size: 1.5rem;
  font-weight: 900;
}

.demo-modal__panel h2 {
  font-size: clamp(2.4rem, 9vw, 4.4rem);
}

/* Cart */
.cart-button {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -6px;
  right: -6px;
  display: grid;
  min-width: 20px;
  height: 20px;
  padding-inline: 4px;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--flame-red);
  color: white;
  font-size: 0.66rem;
  font-weight: 900;
}

.cart-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 1200;
  display: flex;
  width: min(92vw, 440px);
  flex-direction: column;
  padding: 1.2rem;
  background: var(--paper);
  box-shadow: var(--shadow-deep);
  transform: translateX(104%);
  transition: transform 260ms ease;
}

.cart-drawer.is-open {
  transform: none;
}

.cart-drawer__header,
.cart-drawer__footer {
  flex: 0 0 auto;
}

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.cart-drawer__body {
  flex: 1;
  overflow: auto;
  padding-block: 1rem;
}

.cart-drawer__footer {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.cart-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0.85rem;
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.cart-item__thumb {
  width: 72px;
  height: 72px;
  overflow: hidden;
  border-radius: 14px;
  background: var(--paper-2);
}

.cart-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item__top,
.cart-item__bottom,
.cart-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.cart-item__top h3 {
  margin: 0;
  font-size: 0.95rem;
}

.cart-item__remove {
  padding: 0.25rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.quantity {
  display: inline-grid;
  grid-template-columns: 32px 36px 32px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.quantity button {
  display: grid;
  height: 32px;
  place-items: center;
  background: transparent;
  cursor: pointer;
}

.quantity span {
  text-align: center;
  font-weight: 900;
}

.cart-summary {
  margin-bottom: 0.85rem;
  font-size: 1.1rem;
  font-weight: 900;
}

.cart-note {
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.cart-empty {
  padding: 2rem 0;
  text-align: center;
  color: var(--muted);
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.8rem;
  font-weight: 900;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  color: var(--ink);
}

.field textarea {
  min-height: 150px;
  resize: vertical;
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
}

.field-error {
  min-height: 1em;
  color: var(--danger);
  font-size: 0.72rem;
  font-weight: 700;
}

.form-status {
  min-height: 1.4em;
  margin-top: 0.75rem;
  font-size: 0.82rem;
  font-weight: 800;
}

/* Footer */
.site-footer {
  padding-top: clamp(3rem, 7vw, 6rem);
  color: var(--paper);
  background: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 0.75fr;
  gap: clamp(2rem, 5vw, 5rem);
  padding-bottom: 3rem;
}

.footer-brand img {
  width: 180px;
  filter: invert(1) grayscale(1) brightness(2.4);
}

.footer-brand p {
  max-width: 44ch;
  color: var(--muted-dark);
}

.footer-title {
  margin-bottom: 0.8rem;
  color: var(--muted-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

.footer-links a,
.footer-links button {
  width: fit-content;
  padding: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  color: var(--paper);
  cursor: pointer;
}

.footer-links a:hover,
.footer-links button:hover {
  border-color: var(--flame-yellow);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--line-light);
  color: var(--muted-dark);
  font-size: 0.75rem;
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 700;
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px);
}

.back-to-top.is-visible {
  visibility: visible;
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-actions .btn--outline {
    display: none;
  }

  .mobile-menu-button {
    display: inline-flex;
  }

  .product-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 1.25rem), var(--container));
  }

  .brand {
    min-width: 118px;
  }

  .brand img {
    width: 122px;
  }

  .quick-facts,
  .product-grid,
  .feature-grid,
  .form-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .quick-fact + .quick-fact {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .field--full {
    grid-column: auto;
  }
}