/* ==========================================================================
   1. Variables
   ========================================================================== */
:root {
  --bg: #ffffff;
  --card: #ffffff;
  --ink: #1d1d1f;
  --mute: #6b6b70;
  --line: #ebebeb;
  --accent: #e91e63;
  --accent-soft: #f3f3f3;

  --ratio: 4/3; /* ถูกกำหนดจาก CONFIG.imageRatio ใน app.js */
  --card-min: 250px; /* ความกว้างขั้นต่ำของรูปในกริด */
  --radius: 10px;
  --max-width: 1100px;

  color-scheme: light; /* ล็อกธีมขาวเสมอ แม้มือถือเปิดโหมดมืด */
}

/* ==========================================================================
   2. Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
  background: var(--bg);
  color: var(--ink);
  font-family: "Google Sans", sans-serif;
  line-height: 1.5;
}

/* ==========================================================================
   3. Header
   ========================================================================== */
.site-header {
  display: flex;
  flex-direction: column;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 16px 8px;
}

.site-header__title {
  margin: 0 0 4px;
  font-size: 24px;
}
.site-header__desc {
  margin: 0;
  color: var(--mute);
  font-size: 16px;
}
@media (max-width: 600px) {
  .site-header__desc {
    margin: 0;
    color: var(--mute);
    font-size: 14px;
  }
}
/* ==========================================================================
   4. Toolbar (chips + search)
   ========================================================================== */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 10px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.toolbar__inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.chips {
  display: flex;
  gap: 8px;
  padding-bottom: 2px;
  overflow-x: auto;
}

.chip {
  flex: none;
  padding: 6px 16px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
}

.chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

@media (max-width: 600px) {
  .chips {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    overflow-x: visible;
  }

  .chip {
    padding: 6px 4px;
    font-size: 13px;
    text-align: center;
    white-space: nowrap;
    font: inherit;
    font-weight: 500;
    font-size: 12px;
  }
}

.search, .select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

.select {
  appearance: none;
  padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236b6b70' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

/* ==========================================================================
   5. Gallery layout
   ========================================================================== */
.gallery {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8px 16px 80px;
}

.group__title {
  margin: 28px 0 0;
  padding-bottom: 4px;
  border-bottom: 1.5px solid var(--line);
  color: var(--mute);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.series {
  margin-top: 22px;
}

.series__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  margin-bottom: 12px;
}

.series__title {
  margin: 0;
  font-size: 18px;
}

.series__badge {
  margin-right: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
}

.series__price {
  color: var(--mute);
  font-size: 14px;
}
.series__price b {
  color: var(--accent);
  font-size: 18px;
}
.series__price s {
  margin-right: 6px;
}

@media (max-width: 600px) {
  .series__price {
  color: var(--mute);
  font-size: 14px;
}
.series__price b {
  color: var(--accent);
  font-size: 16px;
}
.series__price s {
  margin-right: 6px;
}

}

.series__save {
  padding: 1px 8px;
  border-radius: 6px;
  background: #fff1e8;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--card-min), 1fr));
  gap: 12px;
}

@media (max-width: 600px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

.series__more {
  display: block;
  margin: 12px auto 0;
  padding: 8px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--accent);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.series__more:hover {
  border-color: var(--accent);
}

@media (max-width: 600px) {
  .series__more {
    display: block;
    margin: 12px auto 0;
    padding: 8px 20px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--card);
    color: var(--accent);
    font: inherit;
    font-size: 14px;
    cursor: pointer;
  }
}

/* ==========================================================================
   6. Product card
   ========================================================================== */
.card {
  padding: 4px 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: inherit;
  font: inherit;
  text-align: left;
  overflow: hidden;
  cursor: pointer;
  transition:
    transform 0.15s,
    border-color 0.15s;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}
.card:active {
  transform: scale(0.98);
}

.card__img {
  display: block;
  width: 100%;
  border-radius: 8px;
  aspect-ratio: var(--ratio);
  object-fit: cover;
  background: var(--accent-soft);
}

.card__caption {
  padding: 8px 10px;
  font-size: 14px;
  font-weight: 600;
}
.card__sub {
  display: block;
  color: var(--mute);
  font-size: 12px;
  font-weight: 400;
}

/* ==========================================================================
   7. Empty state & toast
   ========================================================================== */
.empty {
  padding: 60px 0;
  color: var(--mute);
  text-align: center;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  max-width: 90vw;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 14px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 20px);
  transition: 0.2s;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}