/* ─── Card Maker — DS 2.0 經典版 Layout + Controls + Templates ─── */

/* ─── App Layout ─── */
.app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

.app-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  align-items: start;
}

/* ─── Controls Panel ─── */
.controls-panel {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  padding: 16px;
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.controls-panel::-webkit-scrollbar {
  display: none;
}

/* ─── Scroll Arrows ─── */
.scroll-arrow {
  position: sticky;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-card);
  color: var(--color-muted);
  cursor: pointer;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  transition: opacity 0.18s ease-out, color 0.18s ease-out;
  flex-shrink: 0;
}

.scroll-arrow--up {
  top: 0;
  margin-bottom: 4px;
}

.scroll-arrow--down {
  bottom: 0;
  margin-top: 4px;
}

@media (hover: hover) {
  .scroll-arrow:hover {
    color: var(--color-rose);
  }
}

.scroll-arrow.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ─── Watermark Field ─── */
.watermark-field input {
  width: 100%;
  padding: 5px 10px;
  border: 1.5px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  font-family: var(--font-main);
  font-size: var(--text-caption);
  font-weight: var(--weight-medium);
  color: var(--color-ink);
  transition: border-color 0.2s;
}

.watermark-field input:focus {
  outline: none;
  border-color: var(--color-rose);
  box-shadow: 0 0 0 3px rgba(184, 169, 201, 0.15);
}

/* ─── Floating Preview Button (mobile only) ─── */
.fab-preview {
  display: none;
}

.panel-title {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.control-section {
  margin-bottom: 12px;
}

.control-label {
  display: block;
  font-size: var(--text-caption);
  font-weight: var(--weight-bold);
  color: var(--color-charcoal);
  margin-bottom: 6px;
}

/* ─── Template Grid ─── */
.template-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.template-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 4px;
  border: 1.5px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: var(--weight-medium);
  color: var(--color-body);
  transition: border-color 0.18s ease-out, background 0.18s ease-out, color 0.18s ease-out;
}

@media (hover: hover) {
  .template-btn:hover {
    border-color: var(--color-lavender);
    background: #F8F5FC;
  }
}

.template-btn.active {
  border-color: var(--color-rose);
  background: #FEF5F5;
  color: var(--color-ink);
  font-weight: var(--weight-bold);
}

.template-icon {
  color: var(--color-muted);
  line-height: 0;
}

.template-icon svg {
  width: 18px;
  height: 18px;
}

.template-btn.active .template-icon {
  color: var(--color-rose);
}

/* ─── Size Pills ─── */
.size-pills {
  display: flex;
  gap: 6px;
}

.size-pill {
  flex: 1;
  padding: 6px 4px;
  border: 1.5px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: var(--weight-medium);
  color: var(--color-body);
  transition: border-color 0.18s ease-out, background 0.18s ease-out, color 0.18s ease-out;
  text-align: center;
}

@media (hover: hover) {
  .size-pill:hover {
    border-color: var(--color-lavender);
  }
}

.size-pill.active {
  border-color: var(--color-rose);
  background: var(--color-rose);
  color: #FFFFFF;
  font-weight: var(--weight-bold);
}

.size-hint {
  display: block;
  font-size: 11px;
  color: var(--color-light);
  margin-top: 4px;
  text-align: center;
}

/* ─── Texture Grid ─── */
.texture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.texture-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 4px 4px;
  border: 1.5px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 10px;
  font-weight: var(--weight-medium);
  color: var(--color-body);
  transition: border-color 0.18s ease-out, background 0.18s ease-out, color 0.18s ease-out;
}

@media (hover: hover) {
  .texture-btn:hover {
    border-color: var(--color-lavender);
  }
}

.texture-btn.active {
  border-color: var(--color-rose);
  background: #FEF5F5;
  font-weight: var(--weight-bold);
  color: var(--color-ink);
}

.texture-preview {
  display: block;
  width: 36px;
  height: 22px;
  border-radius: 4px;
  overflow: hidden;
}

.texture-preview--none {
  background: linear-gradient(160deg, #F8E8E8, #D4A5A5);
}

.texture-preview--grain {
  background: linear-gradient(160deg, #E8D0D4, #C8A8B0);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='6' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.25'/%3E%3C/svg%3E");
}

.texture-preview--watercolor {
  background: #F0E8E0;
  background-image:
    radial-gradient(circle at 30% 40%, rgba(212,165,165,0.25) 0%, transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(184,169,201,0.20) 0%, transparent 45%);
}

.texture-preview--kraft {
  background: linear-gradient(160deg, #D4C0A0, #C0A880);
}

.texture-preview--linen {
  background: #ECE8E0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.05) 2px, rgba(0,0,0,0.05) 3px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,0.05) 2px, rgba(0,0,0,0.05) 3px);
}

.texture-preview--frost {
  background: linear-gradient(160deg, #F0E8F0, #D8D0E0);
  background-image: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.5) 0%, transparent 70%);
}

/* ─── Theme Dots ─── */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
  justify-items: center;
}

.theme-dot {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  border: 2.5px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease-out, border-color 0.18s ease-out;
  box-shadow: var(--shadow-sm);
}

@media (hover: hover) {
  .theme-dot:hover {
    transform: scale(1.15);
  }
}

.theme-dot.active {
  border-color: var(--color-ink);
  transform: scale(1.15);
}

/* ─── Text Inputs ─── */
.field-group {
  margin-bottom: 8px;
}

.field-group label {
  display: block;
  font-size: 11px;
  font-weight: var(--weight-medium);
  color: var(--color-muted);
  margin-bottom: 2px;
}

.field-group input,
.field-group textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1.5px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  font-family: var(--font-main);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  color: var(--color-ink);
  transition: border-color 0.2s;
  resize: vertical;
}

.field-group input:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--color-rose);
  box-shadow: 0 0 0 3px rgba(184, 169, 201, 0.15);
}

.field-group input::placeholder,
.field-group textarea::placeholder {
  color: var(--color-light);
}

/* ─── Image Upload ─── */
.upload-area {
  border: 2px dashed var(--color-mist);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.18s ease-out, background 0.18s ease-out, color 0.18s ease-out;
  color: var(--color-light);
}

.upload-area svg {
  width: 24px;
  height: 24px;
}

.upload-area.drag-over {
  border-color: var(--color-rose);
  background: #FEF5F5;
  color: var(--color-rose);
}

@media (hover: hover) {
  .upload-area:hover {
    border-color: var(--color-rose);
    background: #FEF5F5;
    color: var(--color-rose);
  }
}

.upload-area p {
  margin-top: 4px;
  font-size: var(--text-caption);
}

.upload-area.has-image {
  padding: 8px;
  border-style: solid;
  border-color: var(--color-sage);
}

.upload-area.has-image img {
  width: 100%;
  border-radius: var(--radius-sm);
}

.btn-clear-image {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  padding: 4px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: var(--text-caption);
  color: var(--color-muted);
  transition: color 0.18s ease-out;
}

@media (hover: hover) {
  .btn-clear-image:hover {
    color: var(--color-grey-rose);
  }
}

/* ─── Toggle Switch ─── */
.toggle-label {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.toggle-label input {
  display: none;
}

.toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-mist);
  border-radius: 12px;
  transition: background 0.2s;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--color-card);
  border-radius: var(--radius-full);
  transition: transform 0.2s;
  box-shadow: var(--shadow-soft);
}

.toggle-label input:checked + .toggle-switch {
  background: var(--color-rose);
}

.toggle-label input:checked + .toggle-switch::after {
  transform: translateX(20px);
}

/* ─── Preview Panel ─── */
.preview-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.preview-wrapper {
  background: #E8E4E1;
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
  overflow: hidden;
}

.preview-canvas {
  transform-origin: top center;
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

/* ─── Export Bar ─── */
.export-bar {
  display: flex;
  gap: 10px;
}

.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-lg);
  background: var(--gradient-main);
  color: #FFFFFF;
  font-family: var(--font-main);
  font-size: var(--text-body);
  font-weight: var(--weight-bold);
  cursor: pointer;
  transition: transform 0.18s ease-out, box-shadow 0.18s ease-out;
  box-shadow: var(--shadow);
}

@media (hover: hover) {
  .btn-export:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
}

.btn-export:active {
  transform: scale(0.97);
  transition-duration: 0.1s;
}

.btn-export.loading {
  opacity: 0.7;
  pointer-events: none;
}

/* ─── Footer — DS 2.0 漸層淡線 ─── */
.site-footer {
  text-align: center;
  padding: 24px 20px;
  font-size: 14px;
  color: var(--color-muted);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-rose), transparent);
  opacity: 0.5;
}

.site-footer a {
  color: var(--color-rose);
  text-decoration: none;
  background-image: linear-gradient(var(--color-lavender), var(--color-lavender));
  background-size: 0% 1px;
  background-position: left bottom;
  background-repeat: no-repeat;
  transition: background-size 0.3s ease;
}

@media (hover: hover) {
  .site-footer a:hover {
    background-size: 100% 1px;
  }
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-ink);
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: var(--radius-lg);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  opacity: 0;
  transition: all 0.3s;
  z-index: 1000;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ═══════════════════════════════════════════
   CARD TEMPLATE STYLES (inside preview-canvas)
   ═══════════════════════════════════════════ */

/* ─── Shared Card Base ─── */
.card {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px;
  font-family: 'GenSenRounded', 'Noto Sans TC', sans-serif;
  position: relative;
  overflow: hidden;
}

/* Paper texture overlay — grain + subtle fiber */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='5' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.02 0.08' numOctaves='2' seed='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

/* Subtle vignette for depth */
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.04) 100%);
  pointer-events: none;
  z-index: 1;
}

.card > * {
  position: relative;
  z-index: 2;
}

/* ─── Theme Backgrounds ─── */
.card.theme-rose {
  background: linear-gradient(160deg, #F8E8E8 0%, #F0D0D4 35%, #E8C0C8 65%, #D4A5A5 100%);
  color: #4A3540;
}

.card.theme-lavender {
  background: linear-gradient(160deg, #F0EAF8 0%, #E0D0F0 35%, #D0BBE5 65%, #B8A9C9 100%);
  color: #3A3548;
}

.card.theme-sage {
  background: linear-gradient(160deg, #EEF2EA 0%, #D5E0CC 35%, #C0D4B0 65%, #A8B5A0 100%);
  color: #354038;
}

.card.theme-sunset {
  background: linear-gradient(160deg, #FFF0E5 0%, #FFD8B8 35%, #F0C098 65%, #E8A878 100%);
  color: #4A3528;
}

.card.theme-ocean {
  background: linear-gradient(160deg, #E8F0F8 0%, #C0D8F0 35%, #98C0E0 65%, #7098C0 100%);
  color: #283848;
}

.card.theme-mocha {
  background: linear-gradient(160deg, #F5EDE5 0%, #E0D0C0 35%, #C8B8A0 65%, #B09880 100%);
  color: #3D3028;
}

.card.theme-berry {
  background: linear-gradient(160deg, #F8E5F0 0%, #F0C0D8 35%, #E0A0C0 65%, #C87098 100%);
  color: #482838;
}

.card.theme-ink {
  background: linear-gradient(160deg, #F0F0F0 0%, #D8D8D8 35%, #C0C0C0 65%, #989898 100%);
  color: #2A2A2A;
}

/* ─── Pill Badge ─── */
.card-pill {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 24px;
}

.theme-rose .card-pill { background: rgba(212,165,165,0.3); color: #8B5558; }
.theme-lavender .card-pill { background: rgba(184,169,201,0.3); color: #5F4F7A; }
.theme-sage .card-pill { background: rgba(145,170,130,0.3); color: #4A5F42; }
.theme-sunset .card-pill { background: rgba(232,168,120,0.3); color: #8B5A30; }
.theme-ocean .card-pill { background: rgba(112,152,192,0.3); color: #385878; }
.theme-mocha .card-pill { background: rgba(176,152,128,0.3); color: #6B5038; }
.theme-berry .card-pill { background: rgba(200,112,152,0.3); color: #882858; }
.theme-ink .card-pill { background: rgba(120,120,120,0.25); color: #484848; }

/* ─── Card Title ─── */
.card-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

/* ─── Card Subtitle ─── */
.card-subtitle {
  font-size: 22px;
  font-weight: 500;
  text-align: center;
  opacity: 0.7;
  margin-bottom: 32px;
  line-height: 1.5;
}

/* ─── Card Image (tool-intro) ─── */
.card-image-wrap {
  width: 85%;
  max-width: 720px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
}

.card-image-wrap img {
  width: 100%;
  display: block;
}

.card-image-placeholder {
  width: 85%;
  max-width: 720px;
  aspect-ratio: 16/10;
  border-radius: 16px;
  background: rgba(255,255,255,0.4);
  border: 2px dashed rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: rgba(0,0,0,0.2);
}

/* ─── Quote Template ─── */
.card-quote-mark {
  font-size: 80px;
  line-height: 1;
  opacity: 0.15;
  font-family: Georgia, serif;
  margin-bottom: -20px;
}

.card-quote {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.6;
  text-align: center;
  max-width: 80%;
  margin-bottom: 24px;
}

.card-quote-author {
  font-size: 18px;
  font-weight: 500;
  opacity: 0.5;
}

/* ─── List Template ─── */
.card-list-title {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}

.card-list {
  list-style: none;
  width: 80%;
  max-width: 600px;
}

.card-list-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.5;
}

.card-list-item + .card-list-item {
  border-top: 1px solid rgba(0,0,0,0.06);
}

.card-list-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
}

.theme-rose .card-list-num { background: rgba(212,165,165,0.35); color: #8B5558; }
.theme-lavender .card-list-num { background: rgba(184,169,201,0.35); color: #5F4F7A; }
.theme-sage .card-list-num { background: rgba(145,170,130,0.35); color: #4A5F42; }
.theme-sunset .card-list-num { background: rgba(232,168,120,0.35); color: #8B5A30; }
.theme-ocean .card-list-num { background: rgba(112,152,192,0.35); color: #385878; }
.theme-mocha .card-list-num { background: rgba(176,152,128,0.35); color: #6B5038; }
.theme-berry .card-list-num { background: rgba(200,112,152,0.35); color: #882858; }
.theme-ink .card-list-num { background: rgba(120,120,120,0.3); color: #484848; }

/* ─── Text Template ─── */
.card-text-title {
  font-size: 52px;
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
  margin-bottom: 20px;
}

.card-text-body {
  font-size: 24px;
  font-weight: 500;
  text-align: center;
  line-height: 1.7;
  opacity: 0.7;
  max-width: 75%;
}

/* ─── Decorative Line ─── */
.card-divider {
  width: 60px;
  height: 3px;
  border-radius: 2px;
  margin: 20px 0;
}

.theme-rose .card-divider { background: rgba(212,165,165,0.6); }
.theme-lavender .card-divider { background: rgba(184,169,201,0.6); }
.theme-sage .card-divider { background: rgba(145,170,130,0.6); }
.theme-sunset .card-divider { background: rgba(232,168,120,0.6); }
.theme-ocean .card-divider { background: rgba(112,152,192,0.6); }
.theme-mocha .card-divider { background: rgba(176,152,128,0.6); }
.theme-berry .card-divider { background: rgba(200,112,152,0.6); }
.theme-ink .card-divider { background: rgba(120,120,120,0.5); }

/* ═══════════════════════════════════════════
   TEXTURE EFFECTS (Behance 2026 style)
   ═══════════════════════════════════════════ */

/* ─── Grain (細顆粒) ─── */
/* Behance 最流行的 grainy gradient 效果 */
.card.texture-grain::before {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='6' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.18'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  mix-blend-mode: overlay;
}

/* ─── Watercolor (水彩暈染) ─── */
/* 大膽色塊 + 粗顆粒紙面 */
.card.texture-watercolor::before {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.4' numOctaves='8' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.14'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 10% 15%, rgba(212,165,165,0.18) 0%, transparent 45%),
    radial-gradient(ellipse at 85% 80%, rgba(184,169,201,0.15) 0%, transparent 40%),
    radial-gradient(ellipse at 60% 30%, rgba(168,181,160,0.10) 0%, transparent 50%),
    radial-gradient(ellipse at 25% 75%, rgba(200,180,160,0.12) 0%, transparent 45%);
}

/* ─── Kraft (牛皮紙) ─── */
/* 復古棕色 + 粗顆粒 + 纖維感 */
.card.texture-kraft::before {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='5' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.02 0.08' numOctaves='3' seed='7'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)' opacity='0.08'/%3E%3C/svg%3E");
}

.card.texture-kraft {
  color: #3D3028 !important;
}

.card.texture-kraft.theme-rose { background: linear-gradient(160deg, #E8D5C0 0%, #D8C4AC 40%, #CEBB9E 70%, #C8B494 100%); }
.card.texture-kraft.theme-lavender { background: linear-gradient(160deg, #DDD0BE 0%, #D0C2AC 40%, #C8BA9E 70%, #C2B394 100%); }
.card.texture-kraft.theme-sage { background: linear-gradient(160deg, #D5CDB8 0%, #C8C0A6 40%, #BEB898 70%, #B8B290 100%); }
.card.texture-kraft.theme-sunset { background: linear-gradient(160deg, #EBD8C2 0%, #DFCBB0 40%, #D5C0A0 70%, #CEB894 100%); }
.card.texture-kraft.theme-ocean { background: linear-gradient(160deg, #D0CCBE 0%, #C4BEB0 40%, #BCB8A4 70%, #B4B098 100%); }
.card.texture-kraft.theme-mocha { background: linear-gradient(160deg, #D8C8B0 0%, #CCC0A0 40%, #C0B490 70%, #B4A882 100%); }
.card.texture-kraft.theme-berry { background: linear-gradient(160deg, #E0CCB8 0%, #D4C0A8 40%, #C8B89C 70%, #C0B090 100%); }
.card.texture-kraft.theme-ink { background: linear-gradient(160deg, #D0CCC4 0%, #C4C0B8 40%, #BCB8B0 70%, #B0ACA4 100%); }

.card.texture-kraft .card-pill { background: rgba(100,70,40,0.18) !important; color: #6B4F32 !important; }
.card.texture-kraft .card-list-num { background: rgba(100,70,40,0.18) !important; color: #6B4F32 !important; }
.card.texture-kraft .card-divider { background: rgba(100,70,40,0.35) !important; }

/* ─── Linen (亞麻布) ─── */
/* 十字交織布紋，加強對比 */
.card.texture-linen::before {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='5' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E"),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.04) 2px,
      rgba(0,0,0,0.04) 3px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.04) 2px,
      rgba(0,0,0,0.04) 3px
    );
}

/* ─── Frost (磨砂霧面) ─── */
/* 柔和霧面質感，大面積 noise + 邊角暈染 */
.card.texture-frost::before {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.12'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 20% 20%, rgba(255,255,255,0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(255,255,255,0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255,255,255,0.15) 0%, transparent 70%);
  background-size: 256px 256px, 100% 100%, 100% 100%, 100% 100%;
  mix-blend-mode: soft-light;
}

.card.texture-frost::after {
  background:
    radial-gradient(ellipse at center, transparent 40%, rgba(255,255,255,0.15) 100%);
}

/* ─── Watermark ─── */
.card-watermark {
  position: absolute;
  bottom: 24px;
  right: 32px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0.25;
  z-index: 2;
}

/* ─── Size Adjustments for Story (9:16 tall) ─── */
.card.size-story .card-title { font-size: 48px; }
.card.size-story .card-quote { font-size: 32px; }
.card.size-story .card-list-title { font-size: 36px; }
.card.size-story .card-text-title { font-size: 44px; }
.card.size-story .card-image-wrap { width: 90%; }
.card.size-story { padding: 80px 48px; }

/* ─── Size Adjustments for Wide (16:9) ─── */
.card.size-wide { padding: 48px 80px; flex-direction: row; gap: 48px; }
.card.size-wide .card-title { font-size: 48px; text-align: left; }
.card.size-wide .card-subtitle { text-align: left; font-size: 20px; }
.card.size-wide .card-image-wrap { width: 50%; max-width: 560px; }
.card.size-wide .card-quote { font-size: 32px; max-width: 85%; }
.card.size-wide .card-list-title { font-size: 36px; }
.card.size-wide .card-text-title { font-size: 40px; }

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media (max-width: 900px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .controls-panel {
    position: static;
    max-height: none;
  }

  .preview-wrapper {
    padding: 12px;
  }

  /* Floating preview button on mobile */
  .fab-preview {
    display: flex;
    align-items: center;
    gap: 6px;
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 18px;
    background: var(--color-rose);
    color: #fff;
    border: none;
    border-radius: 24px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: var(--weight-bold);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    cursor: pointer;
    z-index: 100;
    transition: opacity 0.3s, transform 0.3s;
  }

  .fab-preview:active {
    transform: scale(0.97);
    transition-duration: 0.1s;
  }

  .fab-preview.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
  }
}

@media (max-width: 480px) {
  .app { padding: 12px 10px 24px; }

  .controls-panel { padding: 12px; }

  .template-grid { grid-template-columns: repeat(4, 1fr); gap: 4px; }

  .size-pills { flex-wrap: wrap; }
}

/* ─── DS 2.0 無障礙：減少動態總開關 ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}