/**
 * GCC Live Preview CSS
 * ─────────────────────────────────────────────────────────────
 * NGUYÊN TẮC SCOPE:
 *   STRUCTURAL (media, slider, dots) → GLOBAL, mọi template dùng chung
 *   VISUAL (header, title, caption)  → scope .gcc-tpl-default only
 *                                       KHÔNG override template CSS riêng
 * ─────────────────────────────────────────────────────────────
 */

/* ===== FORM LAYOUT ===== */
.gcc-fieldset { border: 1px solid #e5e7eb; padding: 12px; border-radius: 8px; margin: 12px 0; }
.gcc-inline { display: flex; gap: 8px; align-items: center; }
.gcc-caption-item { padding: 6px 0; border-bottom: 1px dashed #ddd; }
.gcc-caption-item:last-child { border-bottom: 0; }
.gcc-fieldset legend { font-weight: 600; padding: 0 6px; }
.gcc-form .description { display: block; color: #6b7280; margin-top: 4px; font-size: 12px; }

.gcc-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 0 8px;
  /* ─── Center theo trục dọc của grid row ───
     Trước đây dùng align-items: start → preview dính top.
     Đổi sang center để khi nội dung chat ngắn, preview cũng nằm giữa
     hàng (thẳng hàng visual với chat shell đã center vertically). */
  align-items: center;
  /* ─── Row đủ cao để center hiệu quả ───
     Nếu thiếu min-height này, grid row sẽ co theo content
     → "center theo dọc" không có chỗ để center. */
  min-height: calc(100vh - 48px);
  min-height: calc(100dvh - 48px);
}
@media (max-width: 900px) {
  .gcc-two-col {
    grid-template-columns: 1fr;
    /* Mobile: stack 1 cột → bỏ min-height ép viewport vì page dài tự nhiên */
    min-height: 0;
    align-items: stretch;
  }
}

/* ===== STICKY PREVIEW COLUMN ===== */
/* Preview bám theo khi người dùng cuộn form xuống (giữ tính năng sticky).
   Nhưng khi page chưa scroll, align-self: center sẽ canh giữa theo grid row
   → không còn cảnh dính top trống dưới khi nội dung ngắn.
   Vì card đã được giới hạn aspect-ratio 9:16 → không vượt viewport,
   nên KHÔNG cần overflow-y: auto / max-height nữa. */
.gcc-col--preview,
.gcc-preview-container {
  position: sticky;
  top: 24px;                /* khoảng cách nhỏ khi sticky kích hoạt (scroll dài) */
  align-self: center;       /* override align-items để center theo trục dọc */
  overflow: visible;        /* không cuộn — card luôn fit khung */
}

/* Trên mobile: không sticky, hiện bình thường */
@media (max-width: 900px) {
  .gcc-col--preview,
  .gcc-preview-container {
    position: static;
    max-height: none;
    overflow-y: visible;
  }
}

/* ═══════════════════════════════════════════════════════════
 * LIVE PREVIEW — ĐỒNG BỘ 100% VỚI CARD VIEW (gcc-view-standalone)
 * ─────────────────────────────────────────────────────────────
 * Mirror toàn bộ rule của block .gcc-view-standalone bên dưới,
 * chỉ đổi scope: .gcc-col--preview thay cho body.gcc-view-standalone.
 *
 * KHÔNG có background/header gradient cố định → card tự ăn theo
 * --gcc-theme-card-bg / --gcc-theme-text khi gắn theme switcher
 * (gcc-theme-switcher-wrap), giống hệt Card View.
 * ═══════════════════════════════════════════════════════════ */

/* Card container — mirror .gcc-view-standalone .gcc-preview-card */
.gcc-col--preview .gcc-preview-card,
.gcc-col--preview main.gcc-preview-card {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  background: var(--gcc-theme-card-bg, #fff);
  color: var(--gcc-theme-text, inherit);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
  overflow: visible;
  padding: 8px;
  box-sizing: border-box;
  transition: background-color 0.4s ease, color 0.4s ease, box-shadow 0.4s ease;
}

/* Header — mirror .gcc-view-standalone .gcc-preview-header */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-header,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-header {
  margin: 0 0 8px;
  padding: 12px;
  border-radius: 12px;
  background: transparent;
  color: inherit;
  display: block;
}

/* From — mirror Card View */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-from,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-from {
  opacity: .9;
  font-size: 13px;
  margin-bottom: 4px;
  line-height: 1.2;
}

.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-from::after,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-from::after {
  content: none;
}

/* Title — mirror Card View */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-title,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-title {
  margin: 0 0 4px;
  font-weight: 700;
  font-size: 24px;
  line-height: 1.2;
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  max-width: 100%;
  min-width: 0;
}

/* Media — mirror .gcc-view-standalone .gcc-preview-media (khung 1:1, padding/margin) */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-media,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-media {
  margin: 8px 0;
  padding: 0;
  border-radius: 12px;
  overflow: hidden;
}

/* Slider clip — bo theo media */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-slider,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-slider {
  border-radius: 12px;
  overflow: hidden;
}

/* Media fill — ảnh/video lấp đầy khung 1:1 (giống Card View)
 * ─────────────────────────────────────────────────────────────
 * QUAN TRỌNG: phải có position:absolute + inset:0 vì .gcc-slide là flex container
 * (display:flex; align-items:center; justify-content:center) — nếu không, flex
 * algorithm sẽ ép <img> về intrinsic size dù đã set width:100%.
 *
 * Đây chính là điểm khác biệt với rule cover của .gcc-view-standalone (dòng 474-482)
 * đã có sẵn position:absolute + inset:0 nên fill đúng. Rule cover cho admin live
 * preview trước đây thiếu 2 thuộc tính này → ảnh hiển thị nhỏ theo intrinsic size.
 *
 * Specificity bumped via :is(#gccLivePreview, .gcc-col--preview) — :is() lấy
 * specificity cao nhất trong list = ID-level (1,0,0), thắng mọi rule .gcc-slide img
 * cơ bản (0,1,1) bất kể thứ tự load CSS giữa các file. */
:is(#gccLivePreview, .gcc-col--preview) .gcc-preview-card.gcc-tpl-default .gcc-slide img,
:is(#gccLivePreview, .gcc-col--preview) .gcc-preview-card.gcc-tpl-default .gcc-slide video,
:is(#gccLivePreview, .gcc-col--preview) .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-slide img,
:is(#gccLivePreview, .gcc-col--preview) .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-slide video {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  object-fit: cover !important;
  object-position: center !important;
  display: block !important;
  border-radius: inherit !important;
}

/* Caption — mirror .gcc-view-standalone .gcc-preview-caption */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-caption,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-caption {
  padding: 12px;
  border-top: none;
  min-height: 0;
  font-size: 14px;
  line-height: 1.65;
  color: inherit;
}

/* Video / Audio — mirror Card View (padding 12px, không border xám) */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-video,
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-audio,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-video,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-audio {
  padding: 12px;
  border-top: none;
}
.gcc-col--preview .gcc-preview-card .gcc-preview-audio audio {
  width: 100%;
  height: 46px;
}

/* Models — không border cứng, tinh tế */
.gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-models,
.gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-models {
  padding: 8px 12px;
  border-top: none;
  font-size: 12px;
  opacity: .7;
}

/* Built-in template header colors — KHÔNG áp cho default (để theme tự ăn) */
.gcc-preview-card.gcc-tpl-noel    .gcc-preview-header { background: linear-gradient(45deg, #0bab64, #3bb78f); color: #fff; }
.gcc-preview-card.gcc-tpl-tet     .gcc-preview-header { background: linear-gradient(45deg, #d4145a, #fbb03b); color: #fff; }

/* ═══════════════════════════════════════════════════════════
 * STRUCTURAL — GLOBAL
 * Dùng chung cho MỌI template, chỉ định nghĩa layout/behavior
 * KHÔNG định nghĩa màu sắc, font, border của vùng nội dung
 * ═══════════════════════════════════════════════════════════ */

/* ===== PREVIEW CARD — container shape ===== */
/* STRUCTURAL: áp dụng toàn cục, mọi template dùng chung        */
/* border-radius clip header/media; shadow thay thế border viền */
.gcc-preview-card {
  border-radius: 16px;
  overflow: clip;             /* clip theo radius, KHÔNG cắt chiều dọc */
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.10),
    0 1px 4px  rgba(0, 0, 0, 0.06);
}

/* ===== MEDIA AREA ===== */
.gcc-preview-media {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.gcc-slider {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.gcc-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;        /* căn giữa text khi placeholder wrap nhiều dòng */
  padding: 1em;              /* tránh text dính sát mép */
  box-sizing: border-box;
}

.gcc-slide.is-active { opacity: 1; }

/* ===== MEDIA DISPLAY — CONTAIN ===== */
.gcc-slide img,
.gcc-slide video,
.gcc-slide canvas {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

/* ===== 3D MODEL VIEWER ===== */
.gcc-slide model-viewer {
  width: 100% !important;
  height: 100% !important;
  display: block !important;
  position: absolute !important;
  inset: 0 !important;
}

/* ===== 3D MODEL PLACEHOLDER ===== */
.gcc-model-card {
  display: grid; place-items: center; gap: 6px;
  width: 100%; height: 100%; padding: 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff; text-align: center; border-radius: 10px; box-sizing: border-box;
}
.gcc-model-card__icon  { font-size: 38px; line-height: 1; }
.gcc-model-card__title { font-weight: 700; font-size: 16px; }
.gcc-model-card__name  { max-width: 90%; font-size: 13px; color: rgba(255,255,255,.9); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gcc-model-card__hint  { font-size: 12px; color: rgba(255,255,255,.8); }

/* ===== SLIDER CONTROLS — absolute trong .gcc-preview-media ===== */
.gcc-slider-controls {
  position: absolute;
  bottom: 10px;
  left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 10;
  pointer-events: auto;
}

/* Ẩn prev/next button, chỉ hiện dots */
.gcc-slider-controls > .button { display: none !important; }

/* ===== DOTS ===== */
.gcc-dots {
  display: flex !important;
  gap: 6px !important;
  align-items: center !important;
  justify-content: center !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

.gcc-dots button {
  all: unset !important;
  width: 6px !important; height: 6px !important;
  min-width: 6px !important; min-height: 6px !important;
  max-width: 6px !important; max-height: 6px !important;
  display: inline-block !important;
  padding: 0 !important; margin: 0 !important;
  border: none !important; box-sizing: border-box !important;
  border-radius: 50% !important;
  background: #d1d5db !important;
  opacity: 0.9 !important; cursor: pointer !important;
  transition: all 0.2s ease !important;
  font-size: 0 !important; line-height: 0 !important;
  text-indent: -9999px !important; overflow: hidden !important;
  flex: none !important;
}

.gcc-dots button.is-active { background: #111 !important; opacity: 1 !important; transform: scale(1.2) !important; }
.gcc-dots button:hover      { background: #9ca3af !important; opacity: 1 !important; transform: scale(1.1) !important; }
.gcc-dots button:focus      { outline: 2px solid #3b82f6 !important; outline-offset: 2px !important; }

/* ===== COUNTER ===== */
.gcc-counter { font-size: 12px; color: #6b7280; margin-top: 4px; text-align: right; }
.gcc-counter.is-limit { color: #b91c1c; font-weight: 600; }

/* ═══════════════════════════════════════════════════════════
 * RESPONSIVE — mirror Card View mobile (max-width: 767px)
 * ═══════════════════════════════════════════════════════════ */
@media (max-width: 767px) {
  .gcc-col--preview .gcc-preview-card { width: 100%; max-width: 100%; padding: 8px; border-radius: 12px; }

  /* Mirror Card View mobile: header */
  .gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-header,
  .gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-header {
    margin-bottom: 8px;
    padding: 10px;
    border-radius: 8px;
  }

  .gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-title,
  .gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-title {
    font-size: 22px;
    line-height: 1.3;
  }

  .gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-from,
  .gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-from {
    font-size: 13px;
    margin-bottom: 6px;
  }

  .gcc-col--preview .gcc-preview-card.gcc-tpl-default .gcc-preview-caption,
  .gcc-col--preview .gcc-preview-card:not([class*="gcc-tpl-"]) .gcc-preview-caption {
    padding: 10px;
    font-size: 14px;
    min-height: 0;
  }

  /* Structural mobile */
  .gcc-slider-controls { bottom: 8px; gap: 6px; }
  .gcc-dots { gap: 5px !important; }
  .gcc-dots button {
    width: 5px !important; height: 5px !important;
    min-width: 5px !important; min-height: 5px !important;
    max-width: 5px !important; max-height: 5px !important;
  }
  .gcc-model-card { padding: 12px; }
  .gcc-model-card__icon { font-size: 32px; }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  .gcc-slide, .gcc-dots button { transition: none !important; }
}

/* ===== PRINT ===== */
@media print {
  .gcc-slider-controls, .gcc-dots { display: none !important; }
}

/* ═══════════════════════════════════════════════════════════
 * STANDALONE CARD VIEW (card-view.php)
 * Scope: body.gcc-view-standalone — người nhận mở link thiệp
 * KHÔNG ảnh hưởng admin form preview
 * ═══════════════════════════════════════════════════════════ */

/* Root layout */
body.gcc-view-standalone,
body.gcc-wedding-view {
  background: #f5f5f5;
  margin: 0; padding: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Decorations wrap centering */
body.gcc-view-standalone .gcc-decorations-wrap,
body.gcc-wedding-view .gcc-decorations-wrap {
  width: fit-content !important;
  justify-self: center !important;
  box-sizing: border-box !important;
}

/* Card container */
.gcc-view-standalone .gcc-preview-card,
.gcc-view-standalone main.gcc-preview-card {
  width: 100%;
  max-width: 480px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
  overflow: visible;
  padding: 8px !important;
}

/* Header */
.gcc-view-standalone .gcc-preview-header {
  margin: 0 0 8px;
  padding: 12px !important;
  border-radius: 12px;
}
.gcc-view-standalone .gcc-preview-title {
  margin: 0 0 4px;
  font-weight: 700;
  line-height: 1.2;
}
.gcc-view-standalone .gcc-preview-from { opacity: .9; }

/* Center media/caption blocks */
.gcc-view-standalone .gcc-preview-media,
.gcc-view-standalone .gcc-slider-controls,
.gcc-view-standalone .gcc-preview-caption {
  align-self: center !important;
  margin-left: auto !important;
  margin-right: auto !important;
  max-width: 100% !important;
  width: clamp(320px, 96vw, 920px) !important;
}

/* Media area */
.gcc-view-standalone .gcc-preview-media {
  position: relative !important;
  margin: 8px 0 !important;
  padding: 0 !important;
  border-radius: 12px;
  background: #f8fafc;
  overflow: visible !important;
  contain: layout style;
  aspect-ratio: 1 / 1 !important;
  height: auto !important;
  width: 100% !important;
}

/* Slider clip */
.gcc-view-standalone .gcc-slider {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  overflow: hidden !important;
  border-radius: 12px !important;
}

/* Slide */
.gcc-view-standalone .gcc-slide {
  position: absolute !important;
  inset: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important; height: 100% !important;
  margin: 0 !important; border: 0 !important;
  opacity: 0; transition: opacity .3s ease;
  pointer-events: none;
  overflow: hidden !important;
}
.gcc-view-standalone .gcc-slide.is-active { opacity: 1; pointer-events: auto; z-index: 1; }

/* Images & Videos — CONTAIN */
.gcc-view-standalone .gcc-slide img,
.gcc-view-standalone .gcc-slide video {
  position: absolute !important; inset: 0 !important;
  width: 100% !important; height: 100% !important;
  object-fit: contain !important;
  margin: 0 !important; padding: 0 !important;
  display: block !important;
  border-radius: inherit !important;
}
.gcc-view-standalone .gcc-slide video::-webkit-media-controls-enclosure {
  overflow: hidden; border-radius: 12px;
}

/* 3D model-viewer */
.gcc-view-standalone .gcc-slide model-viewer,
.gcc-view-standalone model-viewer {
  position: absolute !important; inset: 0 !important;
  width: 100% !important; height: 100% !important;
  max-width: 100% !important; max-height: 100% !important;
  min-width: 0 !important; min-height: 0 !important;
  display: block !important; margin: 0 !important; padding: 0 !important;
  background: #f8fafc !important;
  z-index: 1 !important; overflow: hidden !important;
  contain: layout style paint size !important;
  border-radius: inherit !important;
}
.gcc-view-standalone .gcc-slide model-viewer::part(default-poster),
.gcc-view-standalone .gcc-slide model-viewer::part(poster) {
  position: absolute !important; width: 100% !important; height: 100% !important;
  object-fit: contain !important;
}

/* Caption / Body / Audio */
.gcc-view-standalone .gcc-preview-body,
.gcc-view-standalone .gcc-preview-caption {
  line-height: 1.65;
  padding: 12px !important;
}
.gcc-view-standalone .gcc-preview-audio { padding: 12px !important; }
.gcc-view-standalone .gcc-preview-audio audio { width: 100%; height: 46px; }

/* Dots — standalone (sẽ lớn hơn trong admin) */
.gcc-view-standalone .gcc-slider-controls {
  position: absolute !important;
  bottom: 10px !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
  z-index: 20 !important;
  margin: 0 !important;
  padding: 4px 10px !important;
  background: transparent;
  width: auto !important;
  max-width: 100% !important;
  pointer-events: auto !important;
}
.gcc-view-standalone .gcc-dots {
  position: relative; z-index: 11;
  display: flex !important; gap: 6px !important;
  align-items: center !important; justify-content: center !important;
  margin: 0 !important; padding: 0 !important; list-style: none !important;
}
.gcc-dots button,
.gcc-preview-card .gcc-dots button,
.gcc-slider-controls .gcc-dots button {
  all: unset !important;
  width: 10px !important; height: 10px !important;
  min-width: 10px !important; min-height: 10px !important;
  display: inline-block !important; border-radius: 50% !important;
  background: #d1d5db !important; opacity: .9 !important; cursor: pointer !important;
  transition: transform .2s ease, opacity .2s ease, background .2s ease !important;
  font-size: 0 !important; line-height: 0 !important; text-indent: -9999px !important;
}
.gcc-dots button.is-active { background: #111 !important; opacity: 1 !important; transform: scale(1.14) !important; }
.gcc-dots button:hover     { background: #9ca3af !important; opacity: 1 !important; transform: scale(1.08) !important; }
.gcc-dots button:focus     { outline: 2px solid #3b82f6 !important; outline-offset: 2px !important; }

/* Ẩn toggle dropdown */
.gcc-view-standalone .gcc-preview-toggle { display: none !important; }

/* Template header colors — KHÔNG áp default (để theme switcher tự ăn) */
.gcc-preview-card.gcc-tpl-noel    .gcc-preview-header { background: linear-gradient(45deg,#0bab64,#3bb78f); color: #fff; }
.gcc-preview-card.gcc-tpl-tet     .gcc-preview-header { background: linear-gradient(45deg,#d4145a,#fbb03b); color: #fff; }

/* ===== RESPONSIVE — standalone ===== */
@media (min-width: 1025px) {
  body.gcc-view-standalone { padding: 20px 12px; }
  .gcc-view-standalone .gcc-preview-card { padding: 16px !important; }
  .gcc-view-standalone .gcc-preview-header { margin-bottom: 12px; padding: 16px !important; }
  .gcc-view-standalone .gcc-preview-title { font-size: 32px; }
  .gcc-view-standalone .gcc-preview-from  { font-size: 14px; margin-bottom: 4px; }
  .gcc-view-standalone .gcc-preview-body,
  .gcc-view-standalone .gcc-preview-caption { font-size: 15px; padding: 12px !important; }
  .gcc-view-standalone .gcc-preview-audio { padding: 16px !important; }
  .gcc-view-standalone .gcc-preview-audio audio { height: 54px; }
  .gcc-view-standalone .gcc-preview-media { aspect-ratio: 1 / 1 !important; height: auto !important; }
}
@media (min-width: 768px) and (max-width: 1024px) {
  body.gcc-view-standalone { padding: 16px 12px; }
  .gcc-view-standalone .gcc-preview-card { padding: 12px !important; }
  .gcc-view-standalone .gcc-preview-header { margin-bottom: 10px; padding: 14px !important; }
  .gcc-view-standalone .gcc-preview-title { font-size: 26px; }
  .gcc-view-standalone .gcc-preview-from  { font-size: 13px; margin-bottom: 4px; }
  .gcc-view-standalone .gcc-preview-body,
  .gcc-view-standalone .gcc-preview-caption { font-size: 14px; padding: 10px !important; }
  .gcc-view-standalone .gcc-preview-audio { padding: 14px !important; }
  .gcc-view-standalone .gcc-preview-audio audio { height: 50px; }
  .gcc-view-standalone .gcc-preview-media { aspect-ratio: 1 / 1 !important; height: auto !important; }
}
@media (max-width: 767px) {
  body.gcc-view-standalone { padding: 8px 6px; }
  body.gcc-view-standalone .gcc-decorations-wrap,
  body.gcc-wedding-view .gcc-decorations-wrap { width: 100% !important; }
  .gcc-view-standalone .gcc-preview-card { padding: 8px !important; border-radius: 12px; }
  .gcc-view-standalone .gcc-preview-header { margin-bottom: 8px; padding: 10px !important; border-radius: 8px; }
  .gcc-view-standalone .gcc-preview-title { font-size: 28px; line-height: 1.3; }
  .gcc-view-standalone .gcc-preview-from  { font-size: 15px; margin-bottom: 6px; }
  .gcc-view-standalone .gcc-preview-body,
  .gcc-view-standalone .gcc-preview-caption { font-size: 16px; padding: 10px !important; }
  .gcc-view-standalone .gcc-preview-audio { padding: 10px !important; }
  .gcc-view-standalone .gcc-preview-media { aspect-ratio: 1 / 1 !important; height: auto !important; }
}

/* ===== PRINT ===== */
@media print {
  body.gcc-view-standalone { padding: 0; background: #fff; }
  .gcc-view-standalone .gcc-preview-card { box-shadow: none; border: 2px solid #000; page-break-inside: avoid; }
  .gcc-view-standalone .gcc-slider-controls,
  .gcc-view-standalone .gcc-preview-audio { display: none !important; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  .gcc-view-standalone *, .gcc-view-standalone .gcc-slide {
    animation: none !important; transition: none !important;
  }
}


/* ═══════════════════════════════════════════════════════════
 * 9:16 FRAME — CUSTOM TEMPLATES (Phương án C: chuẩn hóa)
 * ───────────────────────────────────────────────────────────
 * Chỉ áp cho card có class gcc-tpl-* TRỪ built-in (default/noel/tet).
 *
 * MỤC TIÊU:
 *   1) Khung cố định 9:16 → không kéo dài thiệp, không phải cuộn.
 *   2) Cung cấp font-size + CSS variables ĐỘNG theo container width
 *      (qua đơn vị `cqi`) để template MỚI có thể dùng `em`/`rem`
 *      và tự co/giãn vừa khung.
 *   3) Template CŨ chưa chuẩn hoá (dùng px cố định) vẫn không gãy:
 *      phần thừa bị overflow:hidden cắt — chấp nhận được làm fallback.
 *
 * TEMPLATE CHUẨN MẪU (khuyến nghị khi viết template mới):
 *   - Bỏ hoàn toàn `min-height` trên .gcc-preview-card.
 *   - Margin/padding dùng `em` (em sẽ co theo font-size động ở đây)
 *     hoặc dùng các biến --gcc-block-margin / --gcc-block-padding.
 *   - Font-size dùng `em` hoặc clamp() với cqi.
 *   - Tránh box-shadow / clip-path tham chiếu px tuyệt đối.
 *
 * BROWSER SUPPORT:
 *   - aspect-ratio: Chrome 88+ / Safari 15+ / Firefox 89+ (2021)
 *   - container queries (cqi): Chrome 105+ / Safari 16+ / Firefox 110+ (2023)
 *   - Browser cũ hơn: vẫn thấy khung 9:16 nhờ aspect-ratio fallback,
 *     nhưng không có font-size động (template render kích thước thường).
 * ═══════════════════════════════════════════════════════════ */

/* ── 1. Đặt parent của card làm container query
   (để cqi/cqw bên trong card hoạt động — KHÔNG đặt lên chính card
   vì sẽ tạo dependency loop với chính nó) */
#gccLivePreview,
body.gcc-view-standalone {
  container-type: inline-size;
}

/* ── 2. Khung 9:16 + font-size động + CSS variables chuẩn
   Selector: card có class gcc-tpl-* hoặc data-template, TRỪ built-in.
   Dùng :where() để giữ specificity = 0 cho :not() chain — template
   override dễ dàng mà không cần !important. */
.gcc-preview-card[class*="gcc-tpl-"]:where(:not(.gcc-tpl-default):not(.gcc-tpl-noel):not(.gcc-tpl-tet)),
.gcc-preview-card[data-template]:where(:not([data-template="default"]):not([data-template="noel"]):not([data-template="tet"])) {

  /* Khung cố định 9:16 — phần thừa bị cắt thay vì kéo dài */
  aspect-ratio: 9 / 16;
  width: 100%;
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
  height: auto;
  overflow: hidden;

  /* Hủy min-height của template cũ (boy-birthday: 460px, v.v.) */
  min-height: 0;

  /* Font-size động: 2.96cqi ≈ 16px khi container = 540px,
     ≈ 10.6px khi container = 360px → text co theo khung.
     clamp() đảm bảo không nhỏ < 9px hay lớn > 18px. */
  font-size: clamp(9px, 2.96cqi, 18px);

  /* CSS variables CHUẨN — template mới nên dùng các biến này
     thay cho giá trị px cố định. Mặc định ở đây tính theo em
     nên tự co theo font-size động phía trên. */
  --gcc-block-gap: 1em;          /* khoảng cách giữa các block */
  --gcc-block-pad-y: 1.1em;      /* padding dọc của block (header/caption…) */
  --gcc-block-pad-x: 1.6em;      /* padding ngang */
  --gcc-block-margin-x: 0.9em;   /* margin ngang block (lề trong card) */
  --gcc-block-margin-y: 1em;     /* margin dọc giữa block */
  --gcc-block-radius: 0.7em;     /* bo góc các block */
  --gcc-card-radius: 1.2em;      /* bo góc card */
  --gcc-title-size: 1.6em;       /* size tiêu đề */
  --gcc-from-size: 0.78em;       /* size dòng "from" */
  --gcc-caption-size: 0.95em;    /* size message */
}

/* ── 3. Layout vertical bên trong card
   Đảm bảo các block xếp dọc đều, lấp đầy 9:16 nhưng không tràn.
   Áp lên direct children của card. */
.gcc-preview-card[class*="gcc-tpl-"]:where(:not(.gcc-tpl-default):not(.gcc-tpl-noel):not(.gcc-tpl-tet)),
.gcc-preview-card[data-template]:where(:not([data-template="default"]):not([data-template="noel"]):not([data-template="tet"])) {
  display: flex;
  flex-direction: column;
}
.gcc-preview-card[class*="gcc-tpl-"]:where(:not(.gcc-tpl-default):not(.gcc-tpl-noel):not(.gcc-tpl-tet)) > .gcc-preview-media,
.gcc-preview-card[data-template]:where(:not([data-template="default"]):not([data-template="noel"]):not([data-template="tet"])) > .gcc-preview-media {
  /* Media co dãn lấp khoảng trống còn lại — KHÔNG ép aspect-ratio
     tại đây để template tự handle hình dạng vùng media. */
  flex: 1 1 auto;
  min-height: 0;        /* cho phép co dưới content size */
}

/* ── 4. Standalone view (người nhận xem thiệp): khung lớn hơn */
body.gcc-view-standalone .gcc-preview-card[class*="gcc-tpl-"]:where(:not(.gcc-tpl-default):not(.gcc-tpl-noel):not(.gcc-tpl-tet)),
body.gcc-view-standalone .gcc-preview-card[data-template]:where(:not([data-template="default"]):not([data-template="noel"]):not([data-template="tet"])) {
  max-width: 420px;
}

/* ── 5. Mobile: dùng full width parent (không giới hạn 360px) */
@media (max-width: 480px) {
  .gcc-preview-card[class*="gcc-tpl-"]:where(:not(.gcc-tpl-default):not(.gcc-tpl-noel):not(.gcc-tpl-tet)),
  .gcc-preview-card[data-template]:where(:not([data-template="default"]):not([data-template="noel"]):not([data-template="tet"])) {
    max-width: 100%;
  }
}

/* ═══════════════════════════════════════════════════════════
 * BELOW-CARD MODULES — timestamp + reply form
 * Nằm NGOÀI <main class="gcc-preview-card">, sau </main>,
 * trong .gcc-decorations-wrap. Khớp chiều rộng card.
 * ═══════════════════════════════════════════════════════════ */

.gcc-view-standalone .gcc-card-below-modules,
.gcc-wedding-view   .gcc-card-below-modules {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

/* Default/noel/tet template rộng hơn */
.gcc-view-standalone .gcc-preview-card.gcc-tpl-default ~ .gcc-card-below-modules,
.gcc-view-standalone .gcc-preview-card.gcc-tpl-noel    ~ .gcc-card-below-modules,
.gcc-view-standalone .gcc-preview-card.gcc-tpl-tet     ~ .gcc-card-below-modules {
  max-width: 480px;
}

/* Timestamp */
.gcc-view-standalone .gcc-card-below-modules .gcc-timestamp-container,
.gcc-wedding-view   .gcc-card-below-modules .gcc-timestamp-container {
  width: 100% !important;
  max-width: 100% !important;
  margin: 8px 0 0 !important;
  box-sizing: border-box !important;
}

/* Reply form wrap */
.gcc-view-standalone .gcc-card-below-modules .gcc-reply-form-wrap,
.gcc-wedding-view   .gcc-card-below-modules .gcc-reply-form-wrap {
  width: 100% !important;
  max-width: 100% !important;
  margin: 8px 0 6px !important;
  box-sizing: border-box !important;
}

/* Override inline style="max-width:760px" trên <details> do shortcode render */
.gcc-view-standalone .gcc-reply-form-wrap .gcc-reply-accordion,
.gcc-wedding-view   .gcc-reply-form-wrap .gcc-reply-accordion {
  max-width: 100% !important;
  width: 100% !important;
  margin: 0 !important;
  box-sizing: border-box !important;
}

@media (max-width: 480px) {
  .gcc-view-standalone .gcc-card-below-modules,
  .gcc-wedding-view   .gcc-card-below-modules {
    max-width: 100%;
    padding: 0 4px;
  }
}