/* ============================================================
   Caption Studio v3 — WordPress Plugin Stylesheet
   Two-column layout: left = upload/preview, right = captions
   ALL rules scoped under .cs-root — zero theme conflicts.
   System fonts only — no external dependencies.
   ============================================================ */

.cs-root *,
.cs-root *::before,
.cs-root *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.cs-root {
  --cs-bg:         #ffffff;
  --cs-bg2:        #f7f8fa;
  --cs-bg3:        #eef0f4;
  --cs-border:     #e2e5eb;
  --cs-border2:    #d0d4dc;
  --cs-text:       #111318;
  --cs-text2:      #4a5062;
  --cs-text3:      #8a909e;
  --cs-accent:     #2563eb;
  --cs-accent-h:   #1d4ed8;
  --cs-accent-bg:  #eff6ff;
  --cs-success:    #16a34a;
  --cs-error:      #dc2626;
  --cs-error-bg:   #fef2f2;
  --cs-radius:     10px;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--cs-text);
  background: transparent;
}

.cs-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start;
}

.cs-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cs-right {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 300px;
}

/* Panel */
.cs-panel {
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius);
  overflow: hidden;
}

.cs-panel-head {
  padding: 10px 14px;
  border-bottom: 1px solid var(--cs-border);
  background: var(--cs-bg2);
  display: flex;
  align-items: center;
  gap: 7px;
}

.cs-panel-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cs-text2);
}

.cs-panel-badge {
  font-size: 10px;
  font-weight: 500;
  padding: 1px 7px;
  border-radius: 20px;
  background: var(--cs-bg3);
  border: 1px solid var(--cs-border);
  color: var(--cs-text3);
  margin-left: auto;
}

.cs-panel-badge.cs-badge-live {
  background: #f0fdf4;
  border-color: #86efac;
  color: var(--cs-success);
}

.cs-panel-body {
  padding: 14px;
}

/* Upload zone */
.cs-upload-zone {
  border: 2px dashed var(--cs-border);
  border-radius: 8px;
  padding: 34px 18px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--cs-bg2);
  position: relative;
  user-select: none;
}

.cs-upload-zone:hover,
.cs-upload-zone.cs-drag-over {
  border-color: var(--cs-accent);
  background: var(--cs-accent-bg);
}

.cs-upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.cs-upload-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 11px;
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.cs-upload-zone:hover .cs-upload-icon,
.cs-upload-zone.cs-drag-over .cs-upload-icon {
  background: var(--cs-accent-bg);
  border-color: var(--cs-accent);
}

.cs-upload-icon svg {
  width: 19px;
  height: 19px;
  stroke: var(--cs-text3);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.2s;
}

.cs-upload-zone:hover .cs-upload-icon svg,
.cs-upload-zone.cs-drag-over .cs-upload-icon svg {
  stroke: var(--cs-accent);
}

.cs-upload-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--cs-text);
  margin-bottom: 3px;
}

.cs-upload-sub {
  font-size: 12px;
  color: var(--cs-text3);
}

.cs-upload-sub span {
  color: var(--cs-accent);
  font-weight: 500;
}

.cs-upload-types {
  display: flex;
  gap: 4px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 11px;
}

.cs-type-tag {
  font-size: 10px;
  font-weight: 500;
  color: var(--cs-text3);
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  padding: 2px 7px;
  border-radius: 4px;
}

/* Preview */
.cs-preview-wrap {
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.cs-preview-img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  display: block;
}

.cs-preview-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(0,0,0,0.5));
  pointer-events: none;
}

.cs-preview-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 9px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.cs-preview-name {
  font-size: 11px;
  color: rgba(255,255,255,0.85);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.cs-remove-btn {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.38);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 3px 9px;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}

.cs-remove-btn:hover {
  background: rgba(220,38,38,0.65);
  border-color: transparent;
  color: #fff;
}

/* Error */
.cs-error {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  background: var(--cs-error-bg);
  border: 1px solid rgba(220,38,38,0.2);
  border-left: 3px solid var(--cs-error);
  border-radius: var(--cs-radius);
  color: var(--cs-error);
  font-size: 12px;
  animation: cs-fadein 0.2s ease;
}

.cs-error svg {
  width: 14px;
  height: 14px;
  stroke: var(--cs-error);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  flex-shrink: 0;
}

/* Generate button */
.cs-generate-btn {
  width: 100%;
  padding: 11px 16px;
  background: var(--cs-accent);
  color: #fff;
  border: none;
  border-radius: var(--cs-radius);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.cs-generate-btn svg {
  width: 15px;
  height: 15px;
  stroke: #fff;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  flex-shrink: 0;
}

.cs-generate-btn:hover:not(:disabled) {
  background: var(--cs-accent-h);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
}

.cs-generate-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: none;
}

.cs-generate-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* Progress (right panel) */
.cs-progress-body {
  padding: 14px;
}

.cs-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.cs-progress-lbl {
  font-size: 13px;
  font-weight: 600;
  color: var(--cs-text);
}

.cs-progress-pct {
  font-size: 12px;
  font-weight: 500;
  color: var(--cs-text3);
}

.cs-progress-track {
  height: 3px;
  background: var(--cs-bg3);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 12px;
}

.cs-progress-fill {
  height: 100%;
  background: var(--cs-accent);
  border-radius: 100px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.cs-progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: cs-sheen 1.4s infinite;
}

@keyframes cs-sheen {
  from { transform: translateX(-100%); }
  to   { transform: translateX(200%); }
}

.cs-steps-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.cs-step-pill {
  font-size: 10px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  color: var(--cs-text3);
  transition: all 0.25s;
}

.cs-step-pill.cs-active {
  background: var(--cs-accent-bg);
  border-color: var(--cs-accent);
  color: var(--cs-accent);
}

.cs-step-pill.cs-done {
  background: #f0fdf4;
  border-color: #86efac;
  color: var(--cs-success);
}

/* Right panel empty state */
.cs-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 20px;
  color: var(--cs-text3);
  gap: 10px;
}

.cs-empty-icon {
  width: 38px;
  height: 38px;
  border: 1.5px dashed var(--cs-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.cs-empty-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--cs-border2);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
}

.cs-empty-text {
  font-size: 13px;
  color: var(--cs-text3);
  line-height: 1.5;
}

/* Meta strip */
.cs-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  align-items: center;
  padding: 9px 14px;
  background: var(--cs-bg2);
  border-bottom: 1px solid var(--cs-border);
  font-size: 12px;
}

.cs-meta-key {
  font-weight: 600;
  color: var(--cs-text3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 10px;
  margin-right: 1px;
}

.cs-chip {
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  color: var(--cs-text2);
  font-size: 11px;
}

.cs-chip-mood {
  background: #faf5ff;
  border-color: #d8b4fe;
  color: #6d28d9;
}

.cs-meta-sep {
  width: 1px;
  height: 12px;
  background: var(--cs-border);
  margin: 0 2px;
  flex-shrink: 0;
}

/* Caption cards */
.cs-caption-list {
  display: flex;
  flex-direction: column;
}

.cs-caption-card {
  padding: 12px 14px;
  border-bottom: 1px solid var(--cs-border);
  border-left: 3px solid transparent;
  transition: background 0.15s;
  animation: cs-fadein 0.3s ease both;
}

.cs-caption-card:last-child {
  border-bottom: none;
}

.cs-caption-card:hover {
  background: var(--cs-bg2);
}

.cs-caption-card.cs-t-romantic  { border-left-color: #e11d48; }
.cs-caption-card.cs-t-instagram { border-left-color: #ea580c; }
.cs-caption-card.cs-t-formal    { border-left-color: #2563eb; }
.cs-caption-card.cs-t-seo       { border-left-color: #16a34a; }
.cs-caption-card.cs-t-funny     { border-left-color: #d97706; }

.cs-caption-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.cs-caption-badge {
  display: flex;
  align-items: center;
  gap: 5px;
}

.cs-caption-type {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--cs-text2);
}

.cs-copy-btn {
  font-size: 11px;
  font-weight: 500;
  color: var(--cs-text3);
  background: transparent;
  border: 1px solid var(--cs-border);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}

.cs-copy-btn:hover {
  color: var(--cs-text);
  border-color: var(--cs-border2);
}

.cs-copy-btn.cs-copied {
  color: var(--cs-success);
  border-color: #86efac;
  background: #f0fdf4;
}

.cs-caption-text {
  font-size: 13px;
  line-height: 1.65;
  color: var(--cs-text);
}

/* Results footer */
.cs-results-footer {
  padding: 9px 14px;
  border-top: 1px solid var(--cs-border);
  background: var(--cs-bg2);
  display: flex;
  justify-content: flex-end;
}

.cs-copy-all-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  color: var(--cs-text2);
  background: var(--cs-bg);
  border: 1px solid var(--cs-border);
  padding: 5px 11px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}

.cs-copy-all-btn svg {
  width: 11px;
  height: 11px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

.cs-copy-all-btn:hover {
  background: var(--cs-accent);
  color: #fff;
  border-color: var(--cs-accent);
}

.cs-copy-all-btn.cs-copied {
  color: var(--cs-success);
  background: #f0fdf4;
  border-color: #86efac;
}

/* Animations */
@keyframes cs-fadein {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 680px) {
  .cs-layout {
    grid-template-columns: 1fr;
  }
  .cs-right {
    min-height: auto;
  }
  .cs-preview-img {
    max-height: 220px;
  }
}