@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Syne:wght@600;700;800&display=swap');

:root {
  --as-accent: #f59e0b;
  --as-accent-soft: rgba(245, 158, 11, 0.14);
  --as-danger: #ef4444;
  --as-bg: #0f1115;
  --as-bg-2: #171a21;
  --as-surface: #1f2430;
  --as-panel: #252b38;
  --as-border: #343b49;
  --as-text: #f8fafc;
  --as-muted: #9aa4b2;
  --as-radius: 14px;
  --as-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --as-sidebar: 340px;
  --as-ui: 'DM Sans', sans-serif;
  --as-mono: 'DM Mono', monospace;
  --as-display: 'Syne', sans-serif;
}

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

#as-app {
  display: flex;
  width: 100%;
  max-width: 1240px;
  min-height: 720px;
  margin: 0 auto;
  background:
    radial-gradient(circle at top left, rgba(245, 158, 11, 0.12), transparent 26%),
    linear-gradient(180deg, #141821 0%, #101318 100%);
  border: 1px solid var(--as-border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--as-shadow);
  font-family: var(--as-ui);
  color: var(--as-text);
}

#as-canvas-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.04), transparent 46%),
    linear-gradient(180deg, #151922 0%, #0f1218 100%);
}

#as-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#as-top-bar::before {
  content: 'Apparel Studio';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--as-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(245, 158, 11, 0.82);
  pointer-events: none;
}

.as-bar-left,
.as-bar-right {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}

.as-view-btn,
.as-btn-preview-toggle,
.as-icon-btn,
.as-tab,
.as-style-btn,
.as-btn-primary,
.as-btn-outline,
.as-fx-btn,
.as-preset-card,
.as-size-btn,
.as-qty-btn,
.as-btn-submit,
.as-emoji-btn {
  -webkit-appearance: none;
  appearance: none;
}

.as-view-btn,
.as-btn-preview-toggle {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--as-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--as-text);
  font: 600 12px var(--as-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: 0.2s ease;
}

.as-view-btn:hover,
.as-btn-preview-toggle:hover,
.as-btn-outline:hover,
.as-style-btn:hover,
.as-fx-btn:hover,
.as-size-btn:hover,
.as-qty-btn:hover,
.as-tab:hover {
  border-color: var(--as-accent);
  background: var(--as-accent-soft);
}

.as-view-btn.active,
.as-btn-preview-toggle.active {
  border-color: var(--as-accent);
  background: var(--as-accent);
  color: #111827;
}

.as-icon-btn {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--as-border);
  border-radius: 999px;
  background: rgba(239, 68, 68, 0.08);
  color: #fecaca;
  font: 700 12px var(--as-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: 0.2s ease;
}

.as-icon-btn:hover {
  border-color: var(--as-danger);
  background: rgba(239, 68, 68, 0.16);
}

#as-canvas-wrap {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  overflow: hidden;
}

#as-canvas-wrap::before {
  content: '';
  position: absolute;
  inset: 28px;
  border-radius: 28px;
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.03) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.03) 50%, rgba(255, 255, 255, 0.03) 75%, transparent 75%, transparent),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
  background-size: 22px 22px, auto;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

#as-canvas {
  border-radius: 22px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 30px 60px rgba(0, 0, 0, 0.32);
}

.canvas-container {
  border-radius: 22px;
}

.as-hint {
  padding: 0 20px 18px;
  color: var(--as-muted);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

#as-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(11, 14, 20, 0.82);
  backdrop-filter: blur(10px);
  z-index: 20;
  transition: opacity 0.24s ease;
}

#as-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

#as-overlay-inner {
  max-width: 420px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: rgba(23, 26, 33, 0.96);
  text-align: center;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

#as-overlay-inner h2 {
  margin: 0 0 12px;
  font: 700 34px/1.05 var(--as-display);
}

#as-overlay-inner p {
  margin: 0 0 22px;
  color: var(--as-muted);
  font-size: 15px;
  line-height: 1.6;
}

.as-overlay-upload-btn,
.as-btn-primary,
.as-btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 46px;
  padding: 0 18px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
  color: #16181d;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  box-shadow: 0 14px 34px rgba(245, 158, 11, 0.24);
}

.as-overlay-upload-btn:hover,
.as-btn-primary:hover,
.as-btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(245, 158, 11, 0.28);
}

#as-sidebar {
  width: var(--as-sidebar);
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(37, 43, 56, 0.96), rgba(28, 34, 44, 0.98));
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}

#as-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.as-tab {
  min-height: 42px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--as-muted);
  font: 600 12px var(--as-mono);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: 0.2s ease;
}

.as-tab.active {
  border-color: var(--as-accent);
  background: rgba(245, 158, 11, 0.16);
  color: var(--as-text);
}

.as-panel {
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.as-panel.active {
  display: flex;
}

.as-panel-title {
  margin: 0 0 4px;
  font: 700 22px/1.1 var(--as-display);
}

.as-field-label {
  color: var(--as-muted);
  font: 500 11px var(--as-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.as-panel input[type="text"],
.as-panel input[type="email"],
.as-panel input[type="tel"],
.as-panel input[type="number"],
.as-panel select,
.as-panel textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--as-border);
  border-radius: 14px;
  background: rgba(15, 17, 21, 0.8);
  color: var(--as-text);
  font: 500 14px var(--as-ui);
  transition: 0.2s ease;
}

.as-panel textarea {
  min-height: 84px;
  resize: vertical;
}

.as-panel input:focus,
.as-panel select:focus,
.as-panel textarea:focus {
  outline: none;
  border-color: var(--as-accent);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12);
}

.as-panel input[type="color"] {
  min-width: 52px;
  min-height: 46px;
  padding: 4px;
}

.as-panel input[type="range"] {
  width: 100%;
  accent-color: var(--as-accent);
}

.as-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.as-field-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.as-style-row,
.as-size-row,
.as-qty-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.as-style-btn,
.as-btn-outline,
.as-fx-btn,
.as-size-btn,
.as-qty-btn {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--as-border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--as-text);
  font: 600 13px var(--as-ui);
  cursor: pointer;
  transition: 0.2s ease;
}

.as-style-btn {
  min-width: 42px;
  padding: 0;
}

.as-style-btn.active,
.as-size-btn.active {
  border-color: var(--as-accent);
  background: rgba(245, 158, 11, 0.18);
  color: #fff7ed;
}

.as-btn-outline {
  white-space: nowrap;
}

.as-divider {
  height: 1px;
  margin: 4px 0;
  background: rgba(255, 255, 255, 0.08);
}

.as-divider-text {
  color: var(--as-muted);
  font: 500 12px var(--as-ui);
  text-align: center;
}

.as-upload-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 108px;
  padding: 16px;
  border: 1px dashed rgba(245, 158, 11, 0.5);
  border-radius: 18px;
  background: rgba(245, 158, 11, 0.08);
  color: #fde68a;
  text-align: center;
  cursor: pointer;
  transition: 0.2s ease;
}

.as-upload-zone:hover {
  background: rgba(245, 158, 11, 0.12);
}

.as-hint-sm {
  margin: 0;
  color: var(--as-muted);
  font-size: 13px;
  line-height: 1.55;
}

.as-fx-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

#as-emoji-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.as-emoji-btn {
  min-height: 46px;
  padding: 0;
  border: 1px solid var(--as-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 24px;
  cursor: pointer;
  transition: 0.2s ease;
}

.as-emoji-btn:hover {
  transform: translateY(-1px);
}

.as-qty-row input {
  max-width: 86px;
  text-align: center;
}

.as-req {
  color: #fbbf24;
}

#as-result {
  padding: 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.5;
}

#as-result.success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.22);
  color: #bbf7d0;
}

#as-result.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.22);
  color: #fecaca;
}

#as-live-edit {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--as-border);
  border-radius: 18px;
  background: rgba(12, 14, 18, 0.42);
}

#as-app.preview-mode #as-sidebar {
  width: 0;
  overflow: hidden;
  border-left-width: 0;
}

#as-app.preview-mode .as-hint,
#as-app.preview-mode #as-delete {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 980px) {
  #as-app {
    flex-direction: column;
    min-height: 0;
    border-radius: 0;
  }

  #as-sidebar {
    width: 100%;
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  #as-top-bar::before {
    display: none;
  }

  #as-app.preview-mode #as-sidebar {
    width: 100%;
    max-height: 0;
    border-top-width: 0;
  }
}

@media (max-width: 640px) {
  #as-top-bar,
  #as-canvas-wrap,
  .as-panel {
    padding-left: 14px;
    padding-right: 14px;
  }

  #as-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .as-row,
  .as-fx-grid {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }
}