:root {
  --color-primary: #FF6F0F;
  --color-primary-light: #FFF0E6;
  --color-bg: #FFFFFF;
  --color-text: #212124;
  --color-text-secondary: #868B94;
  --color-border: #EBEBED;
  --color-hover-bg: #F7F8FA;
  --color-heart: #FF4D4D;
  --radius-card: 8px;
  --radius-chip: 20px;
  --max-width: 1080px;
  --header-height: 56px;
  --sidebar-width: 200px;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ── Header ─────────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

/* ── Logo ───────────────────────────────────── */

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.15s;
}

.icon-btn:hover {
  background: var(--color-hover-bg);
}

/* ── Search bar ─────────────────────────────── */

.search-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px 8px;
}

.search-input-wrapper {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

.search-bar input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0 42px 0 38px;
  font-size: 15px;
  outline: none;
  background: var(--color-hover-bg);
  transition: border-color 0.15s;
}

.search-bar input:focus {
  border-color: var(--color-primary);
}

.search-submit {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.search-submit:hover {
  background: var(--color-primary-dark, #1557b0);
}

/* ── Popular searches ───────────────────────── */

.popular-searches {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.popular-searches::-webkit-scrollbar {
  display: none;
}

.popular-label {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.popular-tags {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.popular-tag {
  flex-shrink: 0;
  padding: 4px 12px;
  border-radius: var(--radius-chip);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  transition: all 0.15s;
  white-space: nowrap;
}

.popular-tag:hover {
  background: var(--color-primary);
  color: #fff;
}

.popular-tag.active {
  background: var(--color-primary);
  color: #fff;
}

/* ── Content layout (sidebar + grid) ────────── */

.content-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 16px 40px;
  display: flex;
  gap: 24px;
}

/* ── Sidebar ────────────────────────────────── */

.sidebar {
  flex-shrink: 0;
  width: var(--sidebar-width);
  position: sticky;
  top: calc(var(--header-height) + 100px);
  align-self: flex-start;
}

.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-section:last-child {
  margin-bottom: 0;
}

.sidebar-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s;
  font-size: 14px;
  user-select: none;
}

.sidebar-check:hover {
  background: var(--color-hover-bg);
}

/* Hide native inputs */
.sidebar-check input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Custom checkmark (checkbox) */
.checkmark {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  position: relative;
  transition: all 0.15s;
}

.sidebar-check input:checked ~ .checkmark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.sidebar-check input:checked ~ .checkmark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Radio variant */
.checkmark.radio {
  border-radius: 50%;
}

.sidebar-check input:checked ~ .checkmark.radio {
  background: var(--color-bg);
  border-color: var(--color-primary);
}

.sidebar-check input:checked ~ .checkmark.radio::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 8px;
  height: 8px;
  border: none;
  border-radius: 50%;
  background: var(--color-primary);
  transform: none;
}

.sidebar-check input:checked ~ .check-label {
  font-weight: 600;
  color: var(--color-primary);
}

.check-label {
  color: var(--color-text);
  transition: color 0.12s;
}

/* ── Product Grid ───────────────────────────── */

.product-grid {
  flex: 1;
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  align-content: start;
}

.product-card {
  cursor: pointer;
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.product-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-hover-bg);
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-info {
  padding: 10px 2px 0;
}

.product-title {
  font-size: 15px;
  font-weight: 400;
  overflow: hidden;
  line-height: 1.4;
  display: block;
  max-height: calc(1.4em * 2);
}

.product-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.product-price {
  font-size: 16px;
  font-weight: 700;
  margin-top: 4px;
}

.product-bottom {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 6px;
  gap: 4px;
}

.like-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 2px 4px;
  border-radius: 4px;
  transition: color 0.15s;
}

.like-btn:hover {
  color: var(--color-heart);
}

.like-btn.liked {
  color: var(--color-heart);
}

.like-btn svg {
  width: 16px;
  height: 16px;
}

/* ── Footer ─────────────────────────────────── */

.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-hover-bg);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-copy {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ── Empty state ────────────────────────────── */

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 16px;
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* ── Responsive (phone / desktop only) ─────── */

@media (max-width: 767px) {
  /* Hide popular searches on phone */
  .popular-searches {
    display: none;
  }

  /* Stack sidebar above grid */
  .content-layout {
    flex-direction: column;
    gap: 12px;
  }

  .sidebar {
    width: 100%;
    position: static;
    display: flex;
    gap: 16px;
  }

  .sidebar-section {
    flex: 1;
    margin-bottom: 0;
  }

  /* Collapsible filter sections */
  .sidebar-title {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .sidebar-title::after {
    content: "\25BC";
    font-size: 10px;
    transition: transform 0.2s;
  }

  .sidebar-section.collapsed .sidebar-title::after {
    transform: rotate(-90deg);
  }

  .sidebar-section.collapsed .sidebar-list {
    display: none;
  }
}

@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}