/* ========== Base tokens (ปรับตามธีมหลัก) ========== */
:root{
  --homecard: var(--card, #161922);
  --homecard-2: color-mix(in oklab, var(--homecard) 88%, var(--bg, #0b0c0f) 12%);
  --homecard-shadow: var(--shadow, 0 4px 18px rgba(15,18,24,.18));
  --homecard-shadow-hover: 0 8px 26px rgba(15,18,24,.22);
  --homecard-border: var(--border, rgba(255,255,255,.08));
  --homecard-fg: var(--fg, #e8ecf1);
  --homecard-fg-muted: var(--muted, #aab3c2);
  --homecard-cta: var(--link, #246bff);
}

html[data-theme="light"]{
  --homecard-2: color-mix(in oklab, var(--homecard) 72%, var(--bg, #f7f8fb) 28%);
  --homecard-shadow: var(--shadow, 0 4px 18px rgba(15,18,24,.1));
  --homecard-shadow-hover: 0 10px 24px rgba(15,18,24,.12);
}

html[data-theme="dark"]{
  --homecard-2: color-mix(in oklab, var(--homecard) 90%, var(--bg, #0b0c0f) 10%);
  --homecard-shadow: var(--shadow, 0 4px 18px rgba(5,8,18,.28));
  --homecard-shadow-hover: 0 10px 26px rgba(5,8,18,.32);
}

/* ========== Page header (ตัวเลือก เพิ่มความเรียบร้อย) ========== */
.g-header{
  max-width: 1200px;
  margin: 24px auto 8px;
  padding: 0 16px;
  color: var(--homecard-fg);
}
.g-header .g-brand{ font-size: clamp(22px, 4vw, 28px); line-height:1.25; margin:0 0 6px; }
.g-header .g-sub{ color: var(--homecard-fg-muted); margin:0 0 8px; }

.gallery-filters {
  max-width: 1200px;
  margin: 0 auto 16px;
  padding: 0 16px;
}
.gallery-filters[hidden] { display: none !important; }
.gallery-filters__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}
.gallery-filter {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 160px;
  color: var(--homecard-fg);
}
.gallery-filter__label {
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--homecard-fg-muted);
}
.gallery-filter__select {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--homecard-border);
  background: rgba(18, 22, 35, 0.65);
  color: var(--homecard-fg);
  font-size: 14px;
  min-height: 38px;
}
html[data-theme="light"] .gallery-filter__select {
  background: rgba(255, 255, 255, 0.9);
  color: #0f172a;
}
.gallery-filter__select:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.45);
  outline-offset: 2px;
}

/* ========== Gallery Grid ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1%;
  margin: 1% 0;
}

/* Tablet (<= 1024px) → เหลือ 2 คอลัมน์ */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .4%;
  }
}

/* Mobile (<= 640px) → เหลือ 1 คอลัมน์ */
@media (max-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: .1%;
  }
}
/* ========== Card ========== */
.gallery-grid .card{
  position: relative;
  display: inline-grid;
  grid-template-rows: auto auto auto 1fr; /* thumb, title, meta, spacer/cta */
  gap: 8px;
  padding: 14px;
  background: linear-gradient(180deg, var(--homecard), var(--homecard-2));
  border: 1px solid var(--homecard-border);
  border-radius: 14px;
  box-shadow: var(--homecard-shadow);
  color: var(--homecard-fg);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow: hidden;
  isolation: isolate;
}
.gallery-grid .card:hover{
  transform: translateY(-2px);
  box-shadow: var(--homecard-shadow-hover);
  border-color: color-mix(in oklab, var(--homecard-cta) 28%, transparent);
}
.gallery-grid .card:focus-within{
  outline: 2px solid color-mix(in oklab, var(--homecard-cta) 60%, transparent);
  outline-offset: 2px;
}

/* ========== Card: background variant (โปร่ง ~30%) ========== */
.gallery-grid .card.bgv-1  { background: linear-gradient(180deg, color-mix(in oklab, #8EC5FC 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-2  { background: linear-gradient(180deg, color-mix(in oklab, #E0C3FC 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-3  { background: linear-gradient(180deg, color-mix(in oklab, #FECFEF 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-4  { background: linear-gradient(180deg, color-mix(in oklab, #A8EDEA 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-5  { background: linear-gradient(180deg, color-mix(in oklab, #FDE68A 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-6  { background: linear-gradient(180deg, color-mix(in oklab, #C7F9CC 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-7  { background: linear-gradient(180deg, color-mix(in oklab, #FFCF99 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-8  { background: linear-gradient(180deg, color-mix(in oklab, #FFD6E8 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-9  { background: linear-gradient(180deg, color-mix(in oklab, #B9F1FF 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-10 { background: linear-gradient(180deg, color-mix(in oklab, #E6E6FA 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-11 { background: linear-gradient(180deg, color-mix(in oklab, #E0FFD6 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-12 { background: linear-gradient(180deg, color-mix(in oklab, #FFE3B3 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-13 { background: linear-gradient(180deg, color-mix(in oklab, #D7F9F1 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-14 { background: linear-gradient(180deg, color-mix(in oklab, #F5D0FE 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-15 { background: linear-gradient(180deg, color-mix(in oklab, #FDE1C3 18%, var(--homecard)), var(--homecard-2)); }
.gallery-grid .card.bgv-16 { background: linear-gradient(180deg, color-mix(in oklab, #C4B5FD 18%, var(--homecard)), var(--homecard-2)); }

/* ========== Thumb (ภาพโปร่งใส) ========== */
.gallery-grid .thumb{
  aspect-ratio: 1/1;
  border-radius: 10px;
  background:
    radial-gradient(100px 100px at 12% 18%, rgba(255,255,255,.08), transparent 70%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(0,0,0,.02));
  display: grid;
  place-items: center;
  overflow: hidden;
}
.gallery-grid .thumb img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  filter: drop-shadow(0 3px 10px rgba(0,0,0,.15));
}

/* ========== Title / Meta ========== */
.gallery-grid .title{
  font-size: 15px;
  line-height: 1.35;
  margin: 2px 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gallery-grid .meta{
  list-style: none;
  display: flex;
  gap: 8px;
  padding: 0; margin: 0;
  color: var(--homecard-fg-muted);
  font-size: 12px;
}

/* ========== CTA ========== */
.gallery-grid .cta{
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  background: color-mix(in oklab, var(--homecard-cta) 86%, transparent);
  color: var(--inverse-fg, #fff);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: .2px;
  transition: transform .15s ease, filter .15s ease, background .15s ease;
}
.gallery-grid .cta:hover{ filter: brightness(1.05); transform: translateY(-1px); }
.gallery-grid .cta:active{ transform: translateY(0); }

/* ========== Size map (data-size) ========== */
/* ตั้งค่า span คอลัมน์/ความรู้สึกขนาด โดยไม่พัง layout เล็ก */
.gallery-grid .card[data-size="s"]{ }
.gallery-grid .card[data-size="m"]{ }
.gallery-grid .card[data-size="l"]{ }
.gallery-grid .card[data-size="xl"]{ }

@container (min-width: 720px){
  .gallery-grid .card[data-size="l"] { grid-column: span 1; }
}
@container (min-width: 960px){
  .gallery-grid .card[data-size="xl"]{ grid-column: span 1; }
}

/* ถ้ายังไม่ได้ใช้ container queries ให้ fallback ตาม viewport */
@media (min-width: 768px){
  .gallery-grid .card[data-size="l"] { grid-column: span 1; }
}
@media (min-width: 1024px){
  .gallery-grid .card[data-size="xl"]{ grid-column: span 1; }
}

/* ========== Micro polish ========== */
.gallery-grid .in{ animation: fadeIn .28s ease both; }
@keyframes fadeIn{ from{ opacity:0; transform: translateY(4px); } to{ opacity:1; transform:none; } }
@media (prefers-reduced-motion: reduce){
  .gallery-grid .in{ animation: none; }
}

/* RTL friendly */
:root[dir="rtl"] .meta{ flex-direction: row; }

/* ป้องกันภาพแตกสัดส่วนถ้ามีขนาดแปลก */
img{ max-width:100%; height:auto; }