* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg-body);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--bg-body);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button,
input {
  font: inherit;
}

button,
input[type="search"] {
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  display: flex;
  width: min(100%, var(--content-narrow));
  min-height: 100svh;
  flex-direction: column;
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem 1.25rem;
  background: var(--bg-container);
}

.app-header,
.brand-lockup,
.runtime-badge,
.service-status,
.catalog-heading,
.item-card__meta,
.item-card__footer {
  display: flex;
  align-items: center;
}

.app-header {
  justify-content: space-between;
  gap: var(--space-4);
}

.brand-lockup {
  gap: var(--space-3);
}

.brand-mark {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-secondary-soft);
  color: var(--color-secondary);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
}

.brand-name,
.brand-owner,
.eyebrow,
.intro,
.section-kicker,
.site-footer,
.items-count {
  margin: 0;
}

.brand-name {
  color: var(--color-primary-dark);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.brand-owner {
  margin-top: 0.2rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.runtime-badge {
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 650;
  white-space: nowrap;
}

.runtime-badge .status-dot {
  color: var(--color-secondary);
}

#telegram-sdk-state {
  color: var(--color-secondary);
}

.catalog-intro {
  margin: clamp(3rem, 12vw, 6rem) 0 0;
  animation: fade-up 550ms ease both;
}

.eyebrow,
.section-kicker {
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

h1,
h2 {
  margin: 0;
}

h1 {
  max-width: 18ch;
  margin-top: 1rem;
  color: var(--color-primary-dark);
  font-size: clamp(2.35rem, 9vw, 4.75rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.intro {
  max-width: 34rem;
  margin-top: 1.25rem;
  color: var(--text-secondary);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  line-height: 1.55;
}

.catalog-tools {
  margin-top: clamp(2.25rem, 7vw, 3.5rem);
  animation: fade-up 550ms 80ms ease both;
}

.search-field {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 3.4rem;
  padding: 0 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-soft);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.search-field:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(102 81 125 / 14%);
}

.search-icon {
  color: var(--color-primary);
  font-size: 1.85rem;
  line-height: 1;
  transform: rotate(-20deg);
}

.search-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-main);
  font-size: 1rem;
}

.search-field input::placeholder {
  color: var(--text-muted);
}

.filter-list {
  display: flex;
  gap: 0.55rem;
  margin-top: 1rem;
  overflow-x: auto;
  padding: 0.1rem 0 0.35rem;
  scrollbar-width: none;
}

.filter-list::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  flex: 0 0 auto;
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  background: transparent;
  color: var(--color-primary-dark);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 650;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.filter-chip:hover {
  transform: translateY(-1px);
}

.filter-chip[aria-selected="true"] {
  background: var(--color-primary);
  color: #fff;
}

.catalog-section {
  margin-top: clamp(2.5rem, 8vw, 4rem);
}

.catalog-heading {
  justify-content: space-between;
  gap: 1rem;
}

h2 {
  margin-top: 0.4rem;
  color: var(--text-main);
  font-size: clamp(1.65rem, 5vw, 2.25rem);
  letter-spacing: -0.045em;
}

.items-count {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: right;
}

.items-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.item-card {
  display: grid;
  grid-template-columns: minmax(7rem, 30%) 1fr;
  min-height: 10rem;
  overflow: hidden;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-soft);
  animation: card-in 450ms ease both;
}

.item-card__media,
.item-card__placeholder {
  width: 100%;
  min-height: 100%;
}

.item-card__media {
  display: block;
  object-fit: cover;
  background: var(--bg-card-hover);
}

.item-card__placeholder {
  display: grid;
  place-items: center;
  background: var(--color-secondary-soft);
  color: var(--color-secondary);
  font-size: 2.4rem;
}

.item-card__body {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1rem;
}

.item-card__title {
  margin: 0;
  color: var(--text-main);
  font-size: 1.1rem;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.item-card__description {
  display: -webkit-box;
  overflow: hidden;
  margin: 0.55rem 0 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.item-card__meta {
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin-top: auto;
  padding-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.item-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.item-card__category {
  color: var(--color-primary);
  font-weight: 700;
}

.item-card__footer {
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-secondary-dark);
  font-size: 0.76rem;
  font-weight: 700;
}

.availability::before {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-secondary);
  content: "";
}

.item-card__arrow {
  color: var(--color-primary);
  font-size: 1.4rem;
  line-height: 1;
}

.items-state {
  margin-top: 1.25rem;
  padding: 1.25rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  text-align: center;
}

.items-state:empty {
  display: none;
}

.items-state[data-state="error"] {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.service-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 3rem;
}

.service-status {
  min-width: 0;
  flex-wrap: wrap;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.service-status strong {
  color: var(--text-main);
  font-weight: 700;
}

.service-status[data-state="connected"] .status-dot,
.service-status[data-state="connected"] strong {
  color: var(--color-secondary);
}

.service-status[data-state="error"] .status-dot,
.service-status[data-state="error"] strong {
  color: #b45309;
}

.status-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
}

.site-footer {
  padding-top: 1.25rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (min-width: 720px) {
  .app-shell {
    padding: 2rem 2rem 1.5rem;
  }

  .item-card {
    grid-template-columns: 10rem 1fr;
  }

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

  .service-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .app-shell {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .runtime-badge {
    max-width: 7rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .item-card {
    grid-template-columns: 6.5rem 1fr;
  }

  .item-card__body {
    padding: 0.8rem;
  }
}