/* ==========================================================================
   ReelCoverFit Design System — Phase 2 & 3
   Modern Creator-Tool Aesthetic: Purple/Violet, Soft Pink, Clean Off-White
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Primary Brand Palette — Creator Violet */
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --primary-active: #5b21b6;
  --primary-dark: #6d28d9;
  --primary-light: #f5f3ff;
  --primary-soft: rgba(124, 58, 237, 0.08);
  --primary-border: rgba(124, 58, 237, 0.22);
  --primary-focus: rgba(124, 58, 237, 0.28);

  /* Accent Palette — Soft Pink & Warmth */
  --accent-pink: #ec4899;
  --accent-pink-hover: #db2777;
  --accent-pink-light: #fdf2f8;
  --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(236, 72, 153, 0.06) 100%);
  --accent-glow: radial-gradient(circle at top left, rgba(124, 58, 237, 0.12), transparent 36%),
                 radial-gradient(circle at top right, rgba(236, 72, 153, 0.10), transparent 34%);

  /* Neutrals & Surfaces — Off-White / Pure Surface */
  --bg: #f8fafc;
  --bg-subtle: #f1f5f9;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-raised: #ffffff;
  --surface-muted: #f1f5f9;

  /* Typography Colors */
  --text: #0f172a;
  --text-secondary: #334155;
  --muted: #64748b;
  --muted-light: #94a3b8;

  /* Borders & Dividers */
  --border: #e2e8f0;
  --border-subtle: #f1f5f9;
  --border-hover: #cbd5e1;

  /* Semantic Feedback States */
  --success: #16a34a;
  --success-dark: #15803d;
  --success-light: #dcfce7;
  --success-text: #166534;
  --success-border: #bbf7d0;

  --warning: #f59e0b;
  --warning-dark: #d97706;
  --warning-light: #fef3c7;
  --warning-text: #92400e;
  --warning-border: #fde68a;

  --danger: #ef4444;
  --danger-dark: #dc2626;
  --danger-light: #fee2e2;
  --danger-text: #991b1b;
  --danger-border: #fecaca;

  --info: #0284c7;
  --info-light: #e0f2fe;
  --info-text: #075985;
  --info-border: #bae6fd;

  /* Elevation & Shadows Scale */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 5px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 6px 16px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 14px 34px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.03);
  --shadow-xl: 0 22px 56px rgba(15, 23, 42, 0.10), 0 8px 20px rgba(15, 23, 42, 0.04);
  --shadow: var(--shadow-lg);
  --shadow-primary: 0 12px 28px rgba(124, 58, 237, 0.24);

  /* Border Radii Scale */
  --radius-xs: 6px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --radius: var(--radius-xl);

  /* Layout Widths */
  --container: 1140px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  color-scheme: light;
}

/* --------------------------------------------------------------------------
   2. Reset & Base Typography
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
canvas,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button,
input,
select,
textarea {
  font: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.035em;
  font-weight: 800;
}

h1 {
  font-size: clamp(2.35rem, 5.5vw, 4.2rem);
  letter-spacing: -0.045em;
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  letter-spacing: -0.035em;
  line-height: 1.18;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 750;
  line-height: 1.25;
}

h4 {
  font-size: 1.08rem;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

p:last-child {
  margin-bottom: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  display: inline-block;
}

.small-text {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   3. Layout & Structure
   -------------------------------------------------------------------------- */
.container {
  width: min(100% - 36px, var(--container));
  margin-inline: auto;
}

.section {
  padding: 72px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.text-center {
  margin-inline: auto;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 12px 0 0;
}

/* Standard Card Primitive */
.card,
.upload-panel,
.info-card,
.step-card,
.feedback-card,
.size-card,
.resource-card,
.legal-card,
.article-card,
.seo-content-card,
.tool-card,
.platform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo span {
  font-weight: 850;
  background: linear-gradient(135deg, var(--text) 40%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-img {
  width: 40px !important;
  height: 40px !important;
  min-width: 40px;
  border-radius: 12px;
  object-fit: contain;
  display: block;
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.2);
  transition: transform var(--transition-fast);
}

.logo:hover .logo-img {
  transform: scale(1.05);
}

.logo-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: white;
  background: var(--accent-gradient);
  box-shadow: 0 10px 24px rgba(124, 58, 237, 0.24);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-weight: 650;
  font-size: 0.94rem;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-cta {
  padding: 9px 18px;
  min-height: 40px;
  font-size: 0.88rem;
  font-weight: 750;
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.2);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  padding: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--surface-soft);
  border-color: var(--border-hover);
}

.nav-toggle-icon {
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: background var(--transition-fast);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-fast), top var(--transition-fast);
}

.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px 22px;
    box-shadow: var(--shadow-xl);
    flex-direction: column;
    gap: 6px;
    z-index: 1000;
  }
  .nav-links.is-open {
    display: flex;
    animation: navFadeDown 0.2s ease-out;
  }
  .nav-links a {
    display: block;
    padding: 11px 16px;
    width: 100%;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 650;
  }
  .nav-cta {
    padding: 8px 14px;
    font-size: 0.84rem;
  }
}

@keyframes navFadeDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   5. Buttons, Actions & Interactive States
   -------------------------------------------------------------------------- */
.hero-actions,
.button-group,
.crop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions,
.button-group {
  margin-top: 26px;
}

.btn {
  border: 1px solid transparent;
  cursor: pointer;
  border-radius: var(--radius-full);
  padding: 11px 22px;
  font-size: 0.95rem;
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  line-height: 1.2;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast);
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none !important;
  transform: none !important;
}

/* Button Variants */
.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: 0 16px 36px rgba(124, 58, 237, 0.32);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.btn-danger {
  background: var(--danger-light);
  color: var(--danger-dark);
  border-color: var(--danger-border);
}

.btn-danger:hover:not(:disabled) {
  background: #fecaca;
  color: #b91c1c;
}

/* Accessible Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
.drop-zone:focus-visible,
.batch-dropzone:focus-visible {
  outline: 3px solid var(--primary-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 18px;
  top: -120px;
  z-index: 10000;
  padding: 12px 18px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #ffffff;
  font-weight: 850;
  box-shadow: var(--shadow-xl);
  transition: top var(--transition-normal);
  text-decoration: none;
}

.skip-link:focus {
  top: 18px;
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 76px;
  padding-bottom: 72px;
  background: var(--accent-glow);
  position: relative;
}

.hero-grid {
  display: grid;
  gap: 48px;
  align-items: center;
}

.hero-text {
  margin: 20px 0 0;
  max-width: 640px;
  color: var(--text-secondary);
  font-size: 1.15rem;
  line-height: 1.6;
}

.privacy-pill {
  margin: 20px 0 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-weight: 650;
  font-size: 0.9rem;
  box-shadow: var(--shadow-xs);
}

.hero-card {
  display: flex;
  justify-content: center;
  position: relative;
}

.mock-phone {
  position: relative;
  width: min(290px, 72vw);
  aspect-ratio: 9 / 16;
  border-radius: 40px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.35), rgba(15, 23, 42, 0.75)),
              linear-gradient(135deg, #f97316 0%, #ec4899 50%, #7c3aed 100%);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 10px solid #0f172a;
}

.mock-phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 14px;
  background: #0f172a;
  border-radius: 999px;
  z-index: 5;
}

.mock-safe-zone {
  position: absolute;
  left: 14%;
  right: 14%;
  top: 22%;
  bottom: 25%;
  border: 2px dashed rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: #ffffff;
  font-weight: 850;
  font-size: 1rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  z-index: 2;
}

.mock-grid-crop-indicator {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: min(290px, 72vw);
  border-top: 1.5px dashed rgba(255, 255, 255, 0.6);
  border-bottom: 1.5px dashed rgba(255, 255, 255, 0.6);
  pointer-events: none;
  z-index: 1;
}

.mock-grid-crop-indicator::after {
  content: "1:1 Profile Crop";
  position: absolute;
  right: 10px;
  top: 8px;
  font-size: 0.68rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(15, 23, 42, 0.65);
  padding: 3px 7px;
  border-radius: 6px;
}

.mock-ui {
  position: absolute;
  left: 0;
  right: 0;
  background: rgba(239, 68, 68, 0.24);
  z-index: 3;
}

.mock-ui.top {
  top: 0;
  height: 16%;
}

.mock-ui.bottom {
  bottom: 0;
  height: 22%;
}

.mock-phone-badge {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  z-index: 4;
}

/* --------------------------------------------------------------------------
   7. Tools Overview Grid Section (Phase 3)
   -------------------------------------------------------------------------- */
.tools-overview-section {
  padding: 64px 0 72px;
  background: var(--bg);
}

.tools-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tool-card {
  position: relative;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-border);
}

.tool-card-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: var(--primary-light);
  font-size: 1.4rem;
  margin-bottom: 16px;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.14);
}

.tool-card-badge {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--surface-soft);
  color: var(--muted);
  border: 1px solid var(--border);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.tool-card h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.tool-card p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0 0 16px;
  flex-grow: 1;
}

.tool-card .text-link {
  margin-top: auto;
}

/* --------------------------------------------------------------------------
   8. Platform Compatibility Showcase (Phase 3)
   -------------------------------------------------------------------------- */
.platform-compatibility-section {
  padding: 68px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.platform-cards-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .platform-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .platform-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.platform-card {
  padding: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.platform-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.platform-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.platform-card-header h3 {
  font-size: 1.15rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.platform-badge {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  white-space: nowrap;
}

.platform-badge.verified {
  background: var(--success-light);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

.platform-badge.partial {
  background: var(--warning-light);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}

.platform-badge.manual {
  background: var(--danger-light);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
}

.platform-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0;
}

.platform-specs {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.platform-spec-tag {
  display: inline-flex;
  font-size: 0.75rem;
  font-weight: 750;
  color: var(--muted);
  background: var(--surface);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   9. Tool & Editor Workspace (Phase 4 Creator Studio)
   -------------------------------------------------------------------------- */
.tool-section {
  padding-top: 56px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface-soft) 100%);
}

.studio-container {
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.studio-heading {
  margin-bottom: 24px;
}

.studio-workspace {
  display: grid;
  grid-template-columns: 340px 1fr 360px;
  gap: 24px;
  align-items: start;
}

.studio-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.studio-group {
  padding: 22px;
}

.studio-group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.studio-group-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--surface-soft);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}

.studio-group h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 750;
  color: var(--text);
  line-height: 1.25;
}

.studio-group .small-text {
  margin: 2px 0 0;
}

.crop-studio-titles {
  flex: 1;
}

.overlay-toggles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.overlay-toggles-grid .btn,
.overlay-toggles-grid .overlay-toggle {
  width: 100%;
  justify-content: center;
  text-align: center;
  padding: 9px 8px;
  font-size: 0.85rem;
}

.crop-slider-wrap {
  margin-top: 12px;
}

.export-actions-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.88rem;
}

/* Center Panel Main Preview */
.studio-panel-center .main-preview-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.preview-title-block {
  display: flex;
  align-items: center;
  gap: 10px;
}

.preview-title-block h3 {
  margin: 0;
}

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

.studio-live-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.22);
  animation: liveDotPulse 2s ease-in-out infinite;
}

@keyframes liveDotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.92); }
}

.tag-accent {
  background: #fdf2f8;
  color: #be185d;
  border: 1px solid #fbcfe8;
  font-weight: 750;
}

.tag-subtle {
  background: var(--surface-soft);
  color: var(--muted);
  border: 1px solid var(--border);
  font-weight: 650;
}

.studio-canvas-wrap {
  width: 100%;
  max-width: 380px;
  min-height: 580px;
  aspect-ratio: 9 / 16;
  position: relative;
  display: grid;
  place-items: center;
  margin: 20px auto 16px;
  border-radius: 22px;
  overflow: hidden;
  background: #090d16;
  box-shadow: 0 24px 50px -12px rgba(15, 23, 42, 0.38), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.studio-canvas-wrap #reelCanvas {
  width: 100%;
  height: 100%;
  max-width: 100%;
  aspect-ratio: 9 / 16;
  display: none;
  border-radius: 20px;
  object-fit: contain;
}

.empty-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: var(--muted);
  text-align: left;
}

.empty-features-list li::before {
  content: "✓ ";
  color: var(--primary);
  font-weight: 800;
}

.preview-footer-hints {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 14px;
  font-weight: 600;
}

/* Secondary Previews Dock */
.studio-secondary-dock {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.secondary-dock-heading {
  margin-bottom: 28px;
}

.secondary-previews-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.preview-card-hint {
  margin: 14px 0 0;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.45;
  text-align: center;
}

.drop-zone {
  margin-top: 18px;
  min-height: 184px;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  text-align: center;
  gap: 6px;
  padding: 26px 20px;
  background: var(--surface-soft);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.drop-zone:hover,
.drop-zone.drag-over,
.drop-zone:focus {
  border-color: var(--primary);
  background: #faf8ff;
  outline: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.drop-zone input {
  display: none;
}

.drop-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #ffffff;
  color: var(--primary);
  font-size: 1.45rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.drop-zone:hover .drop-icon {
  transform: translateY(-2px);
}

.drop-zone strong {
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 750;
}

.drop-zone span {
  color: var(--muted);
  font-size: 0.92rem;
}

.privacy-note {
  margin: 16px 0 0;
  padding: 12px 16px;
  background: var(--success-light);
  color: var(--success-text);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-sm);
  font-weight: 650;
  font-size: 0.88rem;
  line-height: 1.5;
}

.status-message {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.status-message.success {
  background: var(--success-light);
  color: var(--success-text);
  border-color: var(--success-border);
}

.status-message.warning {
  background: var(--warning-light);
  color: var(--warning-text);
  border-color: var(--warning-border);
}

.status-message.error {
  background: var(--danger-light);
  color: var(--danger-text);
  border-color: var(--danger-border);
}

.result-box {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.result-box > div {
  padding: 14px 16px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.result-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 3px;
}

.result-box strong {
  font-size: 1.05rem;
  color: var(--text);
}

.recommendation {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 14px 0 0;
}

/* --------------------------------------------------------------------------
   10. Creator Score & Thumbnail Quality Analyzer
   -------------------------------------------------------------------------- */
.creator-score-card {
  margin-top: 20px;
  padding: 20px;
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-md);
  background: radial-gradient(circle at top right, rgba(236, 72, 153, 0.10), transparent 42%), var(--surface);
  box-shadow: var(--shadow-sm);
}

.creator-score-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.creator-score-top h3 {
  margin: 2px 0 4px;
}

.creator-score-summary {
  display: grid;
  justify-items: end;
  gap: 6px;
  min-width: 118px;
}

.creator-score-value {
  min-width: 76px;
  min-height: 76px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 1.45rem;
  font-weight: 850;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.14);
}

.creator-stars {
  color: #f59e0b;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  font-weight: 900;
}

.creator-status-badge {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.02em;
}

.creator-status-badge.waiting {
  background: var(--surface-soft);
  color: var(--muted);
  border: 1px solid var(--border);
}

.creator-status-badge.excellent {
  background: var(--success-light);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

.creator-status-badge.good {
  background: var(--info-light);
  color: var(--info-text);
  border: 1px solid var(--info-border);
}

.creator-status-badge.adjust {
  background: var(--warning-light);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}

.creator-status-badge.poor {
  background: var(--danger-light);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
}

.creator-score-label {
  margin: 6px 0 0;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.92rem;
  max-width: 440px;
}

.creator-score-label[data-rating="excellent"] { color: var(--success-dark); }
.creator-score-label[data-rating="good"] { color: var(--warning-dark); }
.creator-score-label[data-rating="adjust"] { color: #c2410c; }
.creator-score-label[data-rating="poor"] { color: var(--danger-dark); }

.score-meter {
  width: 100%;
  height: 10px;
  margin: 18px 0;
  overflow: hidden;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.22);
}

.score-meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ef4444 0%, #f59e0b 45%, #22c55e 100%);
  transition: width 0.45s ease;
}

.creator-checklist {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.creator-checklist li {
  position: relative;
  padding: 11px 14px 11px 38px;
  color: var(--text-secondary);
  font-weight: 650;
  font-size: 0.92rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  transition: border-color var(--transition-fast);
}

.creator-checklist li::before {
  content: "○";
  position: absolute;
  left: 14px;
  color: var(--muted);
  font-weight: 900;
  font-size: 0.95rem;
}

.creator-checklist li.pass {
  border-color: var(--success-border);
  background: rgba(220, 252, 231, 0.45);
}

.creator-checklist li.pass::before {
  content: "✓";
  color: var(--success);
}

.creator-checklist li.warn {
  border-color: var(--warning-border);
  background: rgba(254, 243, 199, 0.45);
}

.creator-checklist li.warn::before {
  content: "!";
  color: var(--warning-dark);
}

.creator-checklist li.fail {
  border-color: var(--danger-border);
  background: rgba(254, 226, 226, 0.45);
}

.creator-checklist li.fail::before {
  content: "×";
  color: var(--danger-dark);
}

.smart-advice {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
}

.smart-advice h4 {
  margin: 0 0 10px;
}

.smart-advice ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.smart-advice li + li {
  margin-top: 7px;
}

.score-disclaimer {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Thumbnail Visual Quality Analyzer */
.thumbnail-analyzer {
  margin-top: 22px;
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(236, 72, 153, 0.05)), var(--surface);
  box-shadow: var(--shadow-md);
}

.analyzer-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
}

.analyzer-head p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.analyzer-overall {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: grid;
  place-content: center;
  text-align: center;
  background: var(--surface);
  border: 6px solid rgba(124, 58, 237, 0.18);
  box-shadow: var(--shadow-sm);
}

.analyzer-overall strong {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--text);
  font-weight: 850;
}

.analyzer-overall span {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 800;
}

.analyzer-meter {
  height: 10px;
  margin: 18px 0;
  overflow: hidden;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.2);
}

.analyzer-meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent-gradient);
  transition: width 0.4s ease;
}

.analyzer-metrics {
  display: grid;
  gap: 10px;
}

.analyzer-metrics article {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  align-items: center;
  box-shadow: var(--shadow-xs);
}

.analyzer-metrics article span {
  color: var(--text-secondary);
  font-weight: 750;
  font-size: 0.84rem;
}

.analyzer-metrics article strong {
  font-size: 1.05rem;
  color: var(--text);
}

.analyzer-metrics article small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.82rem;
}

.analyzer-suggestions {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.analyzer-suggestions strong {
  font-size: 0.92rem;
}

.analyzer-suggestions ul {
  margin: 8px 0 0;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.analyzer-disclaimer {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   11. Manual Crop Studio & Controls
   -------------------------------------------------------------------------- */
.crop-studio {
  margin-top: 22px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--accent-gradient-subtle);
  box-shadow: var(--shadow-xs);
}

.crop-studio-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.crop-zoom-value {
  min-width: 68px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  font-weight: 850;
  font-size: 0.9rem;
  text-align: center;
  box-shadow: var(--shadow-xs);
}

.crop-label {
  display: block;
  margin: 14px 0 8px;
  color: var(--text);
  font-weight: 750;
  font-size: 0.92rem;
}

.crop-range {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
  height: 6px;
  border-radius: var(--radius-full);
}

.crop-range:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.crop-actions {
  margin-top: 16px;
  align-items: center;
}

.crop-hint {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
  text-align: right;
}

.creator-overlay-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.overlay-toggle {
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 9px 15px;
  background: var(--surface);
  color: var(--text);
  font-weight: 750;
  font-size: 0.88rem;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-xs);
}

.overlay-toggle:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.overlay-toggle.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 800;
}

.overlay-toggle:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none !important;
  transform: none !important;
}

/* --------------------------------------------------------------------------
   12. Platform Guidance & Multi-Surface Tabs
   -------------------------------------------------------------------------- */
.creator-tools-box {
  margin-top: 22px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.creator-tools-box h3 {
  margin-top: 0;
  margin-bottom: 6px;
}

.platform-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  margin-bottom: 14px;
}

.platform-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 9px 14px;
  border-radius: var(--radius-full);
  font-weight: 750;
  font-size: 0.88rem;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.platform-btn:hover:not(.active) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.platform-btn.active,
.platform-btn[aria-pressed="true"] {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.22);
}

.platform-cover-status {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 12px;
  margin-bottom: 0;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.platform-cover-status .status-icon {
  flex-shrink: 0;
  font-size: 1.05rem;
}

.platform-cover-status[data-status="no"] { border-color: rgba(239, 68, 68, 0.4); background: #fef2f2; }
.platform-cover-status[data-status="partial"] { border-color: rgba(245, 158, 11, 0.4); background: #fffbeb; }
.platform-cover-status[data-status="yes"] { border-color: rgba(22, 163, 74, 0.4); background: #f0fdf4; }

.template-grid,
.template-btn {
  display: none !important;
}

.share-box {
  margin-top: 18px;
  padding: 20px;
  text-align: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--primary-border);
  background: var(--accent-gradient-subtle);
  box-shadow: var(--shadow-sm);
}

.share-box h3 {
  margin-top: 0;
  margin-bottom: 6px;
}

.share-box p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.share-box button {
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 750;
  cursor: pointer;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-fast);
}

.share-box button:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.workflow-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 12px;
  padding: 12px 16px;
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(124, 58, 237, 0.05);
}

.workflow-status strong {
  white-space: nowrap;
  font-size: 0.88rem;
  color: var(--primary);
  font-weight: 800;
}

.workflow-status span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.tool-trust-line {
  margin: 10px 0 0;
  font-size: 0.84rem;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   13. Previews & Canvas Viewport
   -------------------------------------------------------------------------- */
.preview-panel {
  display: grid;
  gap: 24px;
}

.preview-panel .card {
  padding: 20px;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.tag {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 850;
  white-space: nowrap;
  border: 1px solid var(--primary-border);
}

.canvas-wrap,
.grid-canvas-wrap {
  position: relative;
  display: grid;
  place-items: center;
  background: linear-gradient(45deg, #f1f5f9 25%, transparent 25%),
              linear-gradient(-45deg, #f1f5f9 25%, transparent 25%),
              linear-gradient(45deg, transparent 75%, #f1f5f9 75%),
              linear-gradient(-45deg, transparent 75%, #f1f5f9 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: 420px;
}

.grid-canvas-wrap {
  min-height: 280px;
}

#reelCanvas {
  width: min(100%, 320px);
  aspect-ratio: 9 / 16;
  display: none;
  border-radius: 22px;
  box-shadow: var(--shadow-xl);
  background: #111827;
}

#gridCanvas {
  width: min(100%, 360px);
  aspect-ratio: 1 / 1;
  display: none;
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  background: #111827;
}

#reelCanvas.crop-enabled {
  cursor: grab;
  touch-action: none;
  user-select: none;
}

#reelCanvas.crop-enabled.is-dragging {
  cursor: grabbing;
}

#reelCanvas:focus-visible {
  outline: 4px solid var(--primary-focus);
  outline-offset: 4px;
}

.empty-preview {
  position: absolute;
  inset: auto;
  color: var(--muted);
  font-weight: 750;
  text-align: center;
  padding: 18px;
}

.empty-preview.small {
  font-size: 0.95rem;
}

.premium-empty-state {
  max-width: 320px;
  display: grid;
  justify-items: center;
  gap: 10px;
}

.empty-state-icon {
  width: 58px;
  height: 58px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 1.5rem;
  box-shadow: 0 12px 28px rgba(124, 58, 237, 0.28);
}

.premium-empty-state strong {
  font-size: 1.15rem;
  color: var(--text);
}

.premium-empty-state p {
  margin: 0;
  color: var(--muted);
  font-weight: 550;
  font-size: 0.92rem;
  line-height: 1.5;
}

.premium-empty-state ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.84rem;
  color: var(--text-secondary);
  text-align: left;
}

.premium-empty-state li::before {
  content: '✓';
  color: var(--success);
  font-weight: 900;
  margin-right: 6px;
}

/* Multi-Platform Preview Card */
.multi-preview-card {
  padding: 20px;
}

.surface-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 6px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  border-radius: var(--radius-md);
}

.surface-tab {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  padding: 8px 14px;
  font-weight: 750;
  font-size: 0.88rem;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.surface-tab:hover {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--border);
}

.surface-tab.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.2);
  transform: translateY(-1px);
}

.surface-canvas-wrap {
  position: relative;
  min-height: 380px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  background: #090d16;
  padding: 20px;
  transition: min-height 0.25s ease;
}

.surface-canvas-wrap canvas {
  display: none;
  max-width: min(100%, 380px);
  max-height: 570px;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.surface-preview-advice {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.surface-canvas-wrap[data-surface="instagram-grid"] canvas { aspect-ratio: 1 / 1; }
.surface-canvas-wrap[data-surface="instagram-explore"] canvas { aspect-ratio: 4 / 5; }
.surface-canvas-wrap[data-surface="instagram-reel"] canvas,
.surface-canvas-wrap[data-surface="youtube-shorts"] canvas,
.surface-canvas-wrap[data-surface="tiktok"] canvas,
.surface-canvas-wrap[data-surface="pinterest"] canvas { aspect-ratio: 9 / 16; }

#surfaceCanvas {
  animation: surfaceReveal 0.22s ease;
}

@keyframes surfaceReveal {
  from { opacity: 0.45; transform: scale(0.985); }
  to { opacity: 1; transform: scale(1); }
}

/* --------------------------------------------------------------------------
   14. Batch Quick Check
   -------------------------------------------------------------------------- */
.batch-dropzone {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  background: var(--surface-soft);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.batch-dropzone:hover {
  border-color: var(--primary);
  background: #faf8ff;
  transform: translateY(-2px);
}

.batch-dropzone strong {
  font-size: 1.1rem;
  color: var(--text);
}

.batch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.batch-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.batch-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.batch-item img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  display: block;
}

.batch-item-meta {
  padding: 10px 12px;
  font-size: 0.8rem;
}

.batch-item-name {
  color: var(--text-secondary);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.batch-badges {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.batch-badge {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.batch-badge.pass { background: var(--success-light); color: var(--success-text); }
.batch-badge.warn { background: var(--warning-light); color: var(--warning-text); }
.batch-badge.fail { background: var(--danger-light); color: var(--danger-text); }

/* --------------------------------------------------------------------------
   15. Process Steps & Information Cards
   -------------------------------------------------------------------------- */
.steps-grid,
.info-grid {
  display: grid;
  gap: 20px;
}

.step-card,
.info-card {
  padding: 26px;
}

.step-card span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 900;
  font-size: 1.1rem;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.12);
}

.step-card h3,
.info-card h3 {
  margin-bottom: 8px;
}

.step-card p,
.info-card p,
.size-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.guide-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.guide-grid p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.size-card {
  padding: 28px;
}

.check-list {
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  color: var(--text-secondary);
  font-weight: 650;
  font-size: 0.96rem;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 900;
  font-size: 1.05rem;
}

/* --------------------------------------------------------------------------
   16. Resource Cards & Guide Links
   -------------------------------------------------------------------------- */
.resource-section {
  padding-top: 48px;
}

.resource-grid {
  display: grid;
  gap: 20px;
}

.resource-card {
  padding: 26px;
}

.resource-card h3 {
  margin-bottom: 8px;
}

.resource-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  color: var(--primary);
  font-weight: 850;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.text-link:hover {
  color: var(--primary-hover);
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   17. Educational Article & Legal Pages
   -------------------------------------------------------------------------- */
.seo-content-section {
  padding-top: 48px;
}

.seo-content-card {
  padding: 32px;
}

.seo-content-card h2 {
  margin-bottom: 20px;
}

.seo-content-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0 0 18px;
}

.article-page,
.legal-page {
  padding: 64px 0 80px;
}

.article-layout {
  display: grid;
  gap: 28px;
}

.article-card,
.legal-card {
  padding: clamp(26px, 4vw, 42px);
  max-width: 900px;
}

.article-card h1,
.legal-card h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  margin-bottom: 16px;
}

.article-card h2,
.legal-card h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  margin-top: 36px;
  margin-bottom: 14px;
}

.article-card h3 {
  margin-top: 24px;
  margin-bottom: 10px;
}

.article-card p,
.article-card li,
.legal-card p,
.legal-card li {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

.article-card ul,
.article-card ol,
.legal-card ul,
.legal-card ol {
  padding-left: 24px;
  margin: 12px 0 20px;
}

.article-card li + li,
.legal-card li + li {
  margin-top: 8px;
}

.article-cta {
  margin: 32px 0;
  padding: 26px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.article-cta h3 {
  margin-top: 0;
}

.article-cta p {
  margin-top: 8px;
  margin-bottom: 18px;
}

.breadcrumbs {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.breadcrumbs a {
  color: var(--primary);
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.note-box {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  color: var(--text-secondary);
  margin: 20px 0;
}

.sticky-tool-cta {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9998;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #ffffff;
  font-weight: 850;
  box-shadow: 0 16px 38px rgba(124, 58, 237, 0.35);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.sticky-tool-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.article-related-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.article-related-grid a {
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  color: var(--primary);
  font-weight: 800;
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.article-related-grid a:hover {
  color: var(--primary-hover);
  border-color: var(--primary);
  background: var(--primary-light);
}

/* --------------------------------------------------------------------------
   18. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list {
  display: grid;
  gap: 14px;
}

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

details[open] {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-sm);
}

summary {
  cursor: pointer;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.4;
  outline: none;
}

summary::-webkit-details-marker {
  color: var(--primary);
}

details p {
  color: var(--muted);
  font-size: 0.96rem;
  margin-top: 12px;
  margin-bottom: 0;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   19. Feedback & Footer
   -------------------------------------------------------------------------- */
.feedback-card {
  padding: 36px 28px;
  text-align: center;
  background: radial-gradient(circle at top left, rgba(124, 58, 237, 0.12), transparent 36%), var(--surface);
}

.feedback-card h2 {
  margin-bottom: 10px;
}

.feedback-card p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 24px;
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: 48px;
}

.footer-content {
  display: grid;
  gap: 28px;
}

.footer-content p {
  max-width: 680px;
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   20. Scroll Reveal & Hover Micro-Interactions
   -------------------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.resource-card:hover,
.step-card:hover,
.info-card:hover,
.size-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

/* --------------------------------------------------------------------------
   21. Responsive Layout Breakpoints
   -------------------------------------------------------------------------- */
@media (min-width: 720px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .info-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .result-box {
    grid-template-columns: repeat(2, 1fr);
  }

  .resource-grid,
  .article-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: start;
  }
}

@media (min-width: 640px) {
  .analyzer-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .hero-grid,
  .guide-grid {
    grid-template-columns: 0.92fr 1.08fr;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 56px 0;
  }

  .workflow-status {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .tool-trust-line {
    font-size: 0.8rem;
  }
}

@media (max-width: 560px) {
  .creator-score-top {
    align-items: flex-start;
  }

  .creator-score-summary {
    justify-items: start;
  }

  .creator-score-value {
    min-width: 64px;
    min-height: 64px;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
  }

  .premium-empty-state ul {
    grid-template-columns: 1fr;
  }

  .surface-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .surface-tab {
    width: 100%;
    text-align: center;
  }

  .surface-canvas-wrap {
    min-height: 320px;
    padding: 14px;
  }

  .analyzer-head {
    flex-direction: column;
  }

  .crop-studio-header,
  .crop-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .crop-actions .btn {
    width: 100%;
  }

  .crop-hint {
    text-align: left;
  }

  .sticky-tool-cta {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  body {
    padding-bottom: 74px;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 48px 0;
  }

  h1 {
    font-size: clamp(2rem, 8.5vw, 2.65rem);
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 54px;
  }

  .button-group .btn,
  .hero-actions .btn,
  .creator-overlay-controls .overlay-toggle {
    width: 100%;
  }

  .preview-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .canvas-wrap {
    min-height: 360px;
  }

  #reelCanvas {
    width: min(100%, 280px);
  }
}

/* Studio Workspace Responsive Breakpoints (Phase 4) */
@media (max-width: 1260px) {
  .studio-workspace {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .studio-panel-center {
    grid-column: 1 / -1;
    order: -1;
  }

  .studio-canvas-wrap {
    max-width: 340px;
    min-height: 520px;
  }
}

@media (max-width: 860px) {
  .studio-workspace {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .secondary-previews-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .studio-canvas-wrap {
    max-width: 320px;
    min-height: 480px;
  }

  .studio-container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 480px) {
  .studio-canvas-wrap {
    max-width: 270px;
    min-height: 400px;
  }

  .preview-footer-hints {
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .empty-features-list {
    grid-template-columns: 1fr;
  }

  .overlay-toggles-grid {
    grid-template-columns: 1fr 1fr;
  }

  .preview-header-tags {
    margin-top: 4px;
  }
}

/* --------------------------------------------------------------------------
   22. Reduced Motion Accessibility
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  #surfaceCanvas {
    animation: none;
  }

  .surface-tab {
    transition: none;
  }

  .reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}