/* ==========================================================================
   Homeless Media Cover Generator — Editorial Minimalist Interface
   Standard: Linear / Stripe / Criterion Taste
   ========================================================================== */

:root {
  --bg-app: #09090b;
  --bg-panel: #121215;
  --bg-subtle: #18181b;
  --border-subtle: #27272a;
  --border-strong: #3f3f46;
  --text-main: #fafafa;
  --text-muted: #a1a1aa;
  --text-faint: #71717a;
  --accent-vermilion: #cd3812;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.app-layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 32px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  font-weight: 600;
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.status-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* Workspace Grid */
.workspace {
  display: grid;
  grid-template-columns: 500px 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 1024px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

/* Panels */
.panel {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.panel-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.panel-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
}

/* Form Elements */
.control-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.label-hint {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-faint);
}

/* Dropzone */
.dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: 6px;
  padding: 24px;
  text-align: center;
  background-color: var(--bg-subtle);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: #fafafa;
  background-color: #202025;
}

.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.dropzone-icon {
  width: 28px;
  height: 28px;
  color: var(--text-faint);
}

.dropzone-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dropzone-primary {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
}

.dropzone-secondary {
  font-size: 11px;
  color: var(--text-faint);
}

.dropzone-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropzone-preview img {
  height: 64px;
  width: 64px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.url-input-wrap {
  margin-top: 6px;
}

/* Text Inputs */
.text-input {
  width: 100%;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 13px;
  transition: border-color 0.15s ease;
}

.text-input:focus {
  outline: none;
  border-color: #ffffff;
}

.text-input-sm {
  padding: 6px 10px;
  font-size: 12px;
}

.text-input-mono {
  font-family: var(--font-mono);
}

.select-input {
  width: 100%;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-main);
  font-size: 13px;
}

/* Headline Stack */
.headline-inputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.line-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
  width: 16px;
  text-align: center;
}

/* Grid & Color Picker */
.form-row-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.color-picker-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-picker-input {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: none;
  cursor: pointer;
}

.swatches {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.swatch-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.swatch-btn:hover {
  transform: scale(1.1);
}

.logo-mode-toggle {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

/* Actions */
.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.btn-primary {
  flex: 2;
  background-color: #ffffff;
  color: #09090b;
  border: none;
  border-radius: 6px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn-primary:hover {
  background-color: #f4f4f5;
}

.btn-secondary {
  flex: 1;
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover {
  background-color: #242429;
  color: var(--text-main);
}

.btn-solid {
  background-color: #ffffff;
  color: #09090b;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
}

/* Preview Panel */
.preview-panel {
  display: flex;
  flex-direction: column;
}

.preview-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.render-time-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.preview-viewport {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px 0;
}

.canvas-frame {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4 / 5;
  background-color: #000;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-subtle);
  position: relative;
}

.rendered-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.preview-loader {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 9, 11, 0.85);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-muted);
  backdrop-filter: blur(4px);
}

/* Spinners */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-large {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* API Reference Drawer */
.api-drawer {
  margin-top: 12px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.api-details {
  cursor: pointer;
}

.api-summary {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  outline: none;
}

.api-content {
  margin-top: 12px;
}

.code-block {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #e4e4e7;
  overflow-x: auto;
  line-height: 1.5;
}