/* ==========================================================================
   Gemini Watermark Remover — Clean Minimal SaaS Styles
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Clean Light Theme Palette */
  --gw-bg: #FCFCFC;
  --gw-bg-subtle: #F8F9FA;
  --gw-card: #FFFFFF;
  --gw-border: #E8E6ED;
  --gw-border-hover: #D4D0DE;

  --gw-ink: #0C0B12;
  --gw-muted: #666373;
  --gw-muted-light: #9490A0;

  /* Brand Purple */
  --gw-purple: #6C47FF;
  --gw-purple-hover: #5935E5;
  --gw-purple-50: #F5F3FF;
  --gw-purple-100: #EDE9FE;
  --gw-purple-glow: rgba(108, 71, 255, 0.25);

  --gw-green: #16A34A;
  --gw-green-50: #F0FDF4;
  --gw-green-border: #BBF7D0;
  --gw-green-text: #15803D;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(12, 11, 18, 0.06);
  --shadow-lg: 0 12px 30px -8px rgba(12, 11, 18, 0.08);
  --shadow-purple: 0 6px 20px -2px rgba(108, 71, 255, 0.35);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--gw-bg);
  color: var(--gw-ink);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--gw-bg);
  color: var(--gw-ink);
  line-height: 1.5;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--gw-ink);
}

p {
  color: var(--gw-muted);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 100;
  padding: 0 16px;
}

.nav-bar {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 8px 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--gw-ink);
}

.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--gw-purple);
  display: grid;
  place-items: center;
}

.badge-clean-privacy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--gw-green-50);
  border: 1px solid var(--gw-green-border);
  color: var(--gw-green-text);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Hero */
.hero {
  padding: 40px 0 24px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero h1 .highlight {
  color: var(--gw-purple);
}

.hero-lead {
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 20px;
}

/* Workspace Card */
.workspace-card {
  background: var(--gw-card);
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  margin-bottom: 40px;
}

/* Mode Switcher */
.mode-toggle-container {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.mode-toggle {
  display: inline-flex;
  padding: 4px;
  background: #F1EFF7;
  border-radius: var(--radius-full);
  gap: 2px;
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--gw-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-pill.active {
  background: #FFFFFF;
  color: var(--gw-ink);
  box-shadow: 0 2px 8px rgba(12, 11, 18, 0.08);
}

/* Upload Dropzone */
.dropzone-box {
  border: 2px dashed #D6D0E8;
  border-radius: var(--radius-lg);
  background: rgba(245, 243, 255, 0.4);
  padding: 48px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.dropzone-box:hover, .dropzone-box.drag-over {
  border-color: var(--gw-purple);
  background: var(--gw-purple-50);
}

.dropzone-icon-circle {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--gw-purple);
  color: #fff;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  box-shadow: 0 6px 16px -2px rgba(108, 71, 255, 0.4);
}

.dropzone-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gw-ink);
  margin-bottom: 4px;
}

.dropzone-desc {
  font-size: 0.9rem;
  color: var(--gw-muted);
  margin-bottom: 12px;
}

.dropzone-subtext {
  font-size: 0.775rem;
  color: var(--gw-muted-light);
}

/* Clean Viewer Stage */
.stage-canvas-wrap {
  position: relative;
  width: 100%;
  min-height: 380px;
  max-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #F8F7FC;
  border-radius: var(--radius-md);
  border: 1px solid var(--gw-border);
  overflow: hidden;
  user-select: none;
}

.comparison-box {
  position: relative;
  display: inline-flex;
  max-width: 100%;
  max-height: 60vh;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  cursor: crosshair;
}

.comparison-box > img, .comparison-box > video {
  display: block;
  max-width: 100%;
  max-height: 60vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

.overlay-clip-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  clip-path: inset(0 50% 0 0);
  z-index: 10;
  pointer-events: none;
}

.overlay-clip-layer > img, .overlay-clip-layer > video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slider-divider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 40px;
  margin-left: -20px;
  z-index: 20;
  cursor: ew-resize;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-divider-handle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: #FFFFFF;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
  transform: translateX(-50%);
}

.slider-divider-button {
  position: relative;
  z-index: 2;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #FFFFFF;
  color: var(--gw-purple);
  display: grid;
  place-items: center;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--gw-border);
}

.tag-label-pill {
  position: absolute;
  top: 10px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 15;
}

.tag-label-pill.after {
  right: 10px;
  background: var(--gw-green-50);
  color: var(--gw-green-text);
  border: 1px solid var(--gw-green-border);
}

.tag-label-pill.before {
  left: 10px;
  background: rgba(12, 11, 18, 0.75);
  color: #FFFFFF;
}

/* Actions Row */
.actions-card-clean {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

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

.btn-primary-purple {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  border: none;
  background: var(--gw-purple);
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-purple);
  transition: all var(--transition-fast);
}

.btn-primary-purple:hover {
  background: var(--gw-purple-hover);
  transform: translateY(-1px);
}

.btn-secondary-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--gw-border);
  background: #FFFFFF;
  color: var(--gw-ink);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary-white:hover {
  background: #F8F7FA;
  border-color: var(--gw-border-hover);
}

.hint-tip-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--gw-muted);
  text-align: center;
}

/* Video Progress */
.video-progress-box {
  background: var(--gw-purple-50);
  border: 1px solid var(--gw-purple-100);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
}

.video-progress-bar-bg {
  width: 100%;
  height: 8px;
  background: #E5E0F8;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 8px 0 4px;
}

.video-progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--gw-purple);
  border-radius: var(--radius-full);
  transition: width 0.1s linear;
}

.slider-custom {
  width: 100%;
  accent-color: var(--gw-purple);
  height: 6px;
  background: #E5E2EE;
  border-radius: 4px;
  outline: none;
}

/* SEO Content Sections */
.seo-content-section {
  max-width: 860px;
  margin: 0 auto 50px;
}

.section-heading {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  text-align: center;
  margin-bottom: 8px;
  color: var(--gw-ink);
}

.section-subtext {
  text-align: center;
  font-size: 0.95rem;
  color: var(--gw-muted);
  max-width: 600px;
  margin: 0 auto 28px;
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.step-card {
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--gw-purple-100);
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gw-purple-50);
  color: var(--gw-purple);
  font-weight: 800;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  font-size: 1.05rem;
}

.step-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--gw-ink);
}

.step-card p {
  font-size: 0.875rem;
  color: var(--gw-muted);
  line-height: 1.55;
}

/* Comparison Table */
.table-container-card {
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.seo-comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.seo-comparison-table th {
  background: #F8F7FC;
  padding: 14px 18px;
  font-weight: 700;
  color: var(--gw-ink);
  border-bottom: 1px solid var(--gw-border);
}

.seo-comparison-table td {
  padding: 14px 18px;
  border-bottom: 1px solid #F1EEF8;
  color: var(--gw-ink);
}

.seo-comparison-table tr:last-child td {
  border-bottom: none;
}

.badge-success {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--gw-green-50);
  color: var(--gw-green-text);
  border: 1px solid var(--gw-green-border);
  font-size: 0.775rem;
  font-weight: 700;
}

.badge-warn {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: #FFF1F2;
  color: #BE123C;
  border: 1px solid #FECDD3;
  font-size: 0.775rem;
  font-weight: 600;
}

/* FAQ */
.faq-wrap-clean {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-row {
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-row.open {
  border-color: var(--gw-purple-100);
}

.faq-toggle-btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 16px 20px;
  color: var(--gw-ink);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  color: var(--gw-purple);
  font-size: 1.2rem;
  font-weight: 700;
  transition: transform var(--transition-fast);
}

.faq-row.open .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 20px 16px;
  color: var(--gw-muted);
  line-height: 1.6;
  font-size: 0.9rem;
  display: none;
}

.faq-row.open .faq-content {
  display: block;
}

.site-footer-clean {
  border-top: 1px solid var(--gw-border);
  padding: 30px 0;
  font-size: 0.85rem;
  color: var(--gw-muted);
  background: #FFFFFF;
  margin-top: 40px;
}

/* ==========================================================================
   Header Auth & Credits Badges
   ========================================================================== */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.credit-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #F4F0FF;
  border: 1px solid #DDD6FE;
  color: #6D28D9;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  letter-spacing: -0.01em;
  transition: all var(--transition-fast);
}

.credit-pill:hover {
  background: #EDE9FE;
  border-color: #C4B5FD;
}

.btn-auth-header {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  color: var(--gw-ink);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-auth-header:hover {
  border-color: var(--gw-purple);
  color: var(--gw-purple);
  box-shadow: 0 2px 8px rgba(108, 71, 255, 0.15);
  transform: translateY(-1px);
}

.user-profile-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  padding: 3px 8px 3px 4px;
  border-radius: var(--radius-full);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gw-purple);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  overflow: hidden;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gw-ink);
  max-width: 100px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--gw-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: 50%;
  transition: color var(--transition-fast);
}

.btn-logout:hover {
  color: #EF4444;
}

.video-credit-banner {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--gw-ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.video-credit-banner strong {
  color: var(--gw-purple);
}

/* ==========================================================================
   Auth & Limit Modals
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(12, 11, 18, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s ease;
}

.modal-card {
  background: #FFFFFF;
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.25);
  position: relative;
  text-align: center;
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: 16px;
}

.modal-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #F5F3FF;
  border: 1px solid #EDE9FE;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.modal-close-btn {
  position: absolute;
  top: -10px;
  right: -6px;
  background: #F1F5F9;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--gw-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: #E2E8F0;
  color: var(--gw-ink);
}

.modal-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.modal-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.modal-benefits {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: left;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.benefit-item {
  font-size: 0.84rem;
  color: #334155;
  font-weight: 500;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-google-sign-in {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  color: #1E293B;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-google-sign-in:hover {
  background: #F8FAFC;
  border-color: #94A3B8;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.auth-tabs {
  display: flex;
  background: #F1F5F9;
  padding: 4px;
  border-radius: var(--radius-lg);
  gap: 4px;
  margin-bottom: 12px;
}

.auth-tab-btn {
  flex: 1;
  border: none;
  background: transparent;
  padding: 8px 12px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--gw-muted);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab-btn.active {
  background: #FFFFFF;
  color: var(--gw-ink);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.auth-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gw-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  color: var(--gw-ink);
  outline: none;
  transition: border-color var(--transition-fast);
}

.auth-input:focus {
  border-color: var(--gw-purple);
  box-shadow: 0 0 0 3px rgba(108, 71, 255, 0.12);
}

.auth-error-text {
  margin-top: 10px;
  padding: 8px 12px;
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  color: #DC2626;
  font-size: 0.82rem;
  border-radius: var(--radius-md);
  text-align: left;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}