/* ==========================================================================
   Save Video - Master Design System
   ========================================================================== */

:root {
  --color-bg: #FFFFFF;
  --color-primary: #3B82F6;
  --color-primary-hover: #2563EB;
  --color-primary-light: #60A5FA;
  --color-primary-subtle: #EFF6FF;
  --color-gradient: linear-gradient(135deg, #60A5FA 0%, #3B82F6 100%);
  --color-gradient-hover: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);
  
  --color-text: #172033;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-surface-alt: #F8FAFC;
  --color-surface-card: #FFFFFF;
  
  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-warning: #F59E0B;
  --color-warning-bg: #FFFBEB;
  --color-danger: #EF4444;
  --color-danger-bg: #FEF2F2;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-img {
  height: 38px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

/* Dropdown Menu */
.nav-dropdown {
  position: relative;
}

.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 240px;
  padding: 0.5rem 0;
  display: none;
  z-index: 100;
  animation: fadeInDown 150ms ease-out;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  color: var(--color-text);
  font-size: 0.9rem;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
}

/* Language Selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--color-primary-light);
  background-color: var(--color-primary-subtle);
}

.lang-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  width: 260px;
  max-height: 380px;
  overflow-y: auto;
  display: none;
  z-index: 110;
  padding: 0.5rem;
}

.lang-dropdown.show {
  display: block;
}

.lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: background-color var(--transition-fast);
}

.lang-option:hover, .lang-option.active {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 600;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  padding: 4.5rem 0 3.5rem;
  background: radial-gradient(circle at 50% -20%, var(--color-primary-subtle) 0%, #FFFFFF 70%);
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.hero-title {
  font-size: clamp(2rem, 4vw + 1rem, 3.25rem);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.5;
}

/* Main Downloader Box */
.downloader-box {
  max-width: 760px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.downloader-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15), var(--shadow-lg);
}

.downloader-input-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 1rem;
  color: var(--color-text-muted);
  pointer-events: none;
}

.downloader-input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 2.85rem;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: var(--color-text);
  background: transparent;
}

.downloader-input::placeholder {
  color: #94A3B8;
  font-size: 0.975rem;
}

.btn-paste {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-paste:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-light);
  background: var(--color-primary-subtle);
}

.btn-download-main {
  background: var(--color-gradient);
  color: #FFFFFF;
  border: none;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-download-main:hover {
  background: var(--color-gradient-hover);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
  transform: translateY(-1px);
}

.btn-download-main:active {
  transform: translateY(0);
}

/* Indicators below box */
.hero-indicators {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.indicator-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.indicator-item svg {
  color: var(--color-primary);
}

/* Status Feedback & Loader */
.processing-feedback {
  max-width: 760px;
  margin: 1.5rem auto 0;
  display: none;
}

.feedback-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  text-align: left;
}

.feedback-alert.error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid #FECACA;
}

.feedback-alert.info {
  background: var(--color-primary-subtle);
  color: var(--color-primary-hover);
  border: 1px solid #BFDBFE;
}

.spinner {
  width: 22px;
  height: 22px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

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

/* Video Results Card */
.result-card {
  max-width: 760px;
  margin: 2rem auto 0;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
  display: none;
}

.result-header {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.result-thumb-wrapper {
  position: relative;
  width: 180px;
  height: 105px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  flex-shrink: 0;
}

.result-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-duration {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.8);
  color: #FFF;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}

.result-info {
  flex: 1;
  min-width: 0;
}

.result-platform-tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.result-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 0.4rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.result-author {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.result-body {
  padding: 1.5rem;
}

.formats-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.format-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.format-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.format-item:hover {
  border-color: var(--color-primary-light);
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.format-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.format-badge {
  padding: 3px 8px;
  background: #E2E8F0;
  color: #334155;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.format-badge.video { background: #DBEAFE; color: #1E40AF; }
.format-badge.audio { background: #FEF3C7; color: #92400E; }
.format-badge.thumb { background: #F3E8FF; color: #6B21A8; }

.format-name {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

.btn-download-format {
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background var(--transition-fast);
}

.btn-download-format:hover {
  background: var(--color-primary-hover);
  color: #FFF;
}

/* ==========================================================================
   Sections & Component Styles
   ========================================================================== */

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* Platforms Grid */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.platform-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: var(--color-text);
  position: relative;
  overflow: hidden;
}

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

.platform-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
  width: 100%;
}

.platform-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  flex-shrink: 0;
}

.platform-card-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
}

.platform-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.platform-card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.step-card:hover {
  transform: translateY(-2px);
}

.step-badge {
  width: 44px;
  height: 44px;
  background: var(--color-gradient);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
}

.step-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--color-text);
}

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

/* Converters Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  transition: all var(--transition-fast);
  color: var(--color-text);
}

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

.tool-icon-box {
  width: 50px;
  height: 50px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tool-content {
  flex: 1;
}

.tool-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.tool-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.tool-action {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* Benefits Grid */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.benefit-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: left;
}

.benefit-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.benefit-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.benefit-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item:hover {
  border-color: var(--color-border-hover);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  gap: 1rem;
}

.faq-icon {
  transition: transform var(--transition-fast);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Converter Widget */
.converter-container {
  max-width: 760px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
}

.dropzone {
  border: 2px dashed #CBD5E1;
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface-alt);
  transition: all var(--transition-fast);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.dropzone-icon {
  color: var(--color-primary);
  margin: 0 auto 1rem;
}

.dropzone-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.dropzone-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.dropzone-size {
  font-size: 0.8rem;
  color: #94A3B8;
}

.file-selected-box {
  display: none;
  background: var(--color-primary-subtle);
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.progress-bar-wrapper {
  margin-top: 1.5rem;
  display: none;
}

.progress-track {
  height: 8px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-gradient);
  transition: width 0.2s ease;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.4rem;
}

/* Transcript Box */
.transcript-output-wrapper {
  margin-top: 2rem;
  display: none;
}

.transcript-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.transcript-textarea {
  width: 100%;
  height: 350px;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  resize: vertical;
  background: var(--color-surface-alt);
  color: var(--color-text);
}

/* Ad Slot Container (CLS-safe reserved dimensions) */
.ad-slot-wrapper {
  margin: 2.5rem auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ad-label {
  font-size: 0.7rem;
  color: #94A3B8;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.ad-box-leaderboard {
  width: 728px;
  height: 90px;
  max-width: 100%;
  background: #F1F5F9;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  background: #0F172A;
  color: #94A3B8;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid #1E293B;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  height: 38px;
  width: auto;
  margin-bottom: 1.25rem;
  filter: brightness(0) invert(1);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: #94A3B8;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1E293B;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-disclaimer {
  font-size: 0.8rem;
  color: #64748B;
  margin-top: 0.75rem;
  line-height: 1.5;
}

/* Breadcrumbs */
.breadcrumbs-nav {
  padding: 1rem 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb-item a {
  color: var(--color-text-muted);
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: #CBD5E1;
}

.breadcrumb-item.active {
  color: var(--color-text);
  font-weight: 600;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 992px) {
  .steps-grid, .benefits-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-xl);
    gap: 1rem;
  }
  .main-nav.mobile-open {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .downloader-box {
    flex-direction: column;
    padding: 0.75rem;
  }
  .downloader-input-wrapper {
    width: 100%;
  }
  .downloader-box-actions {
    display: flex;
    width: 100%;
    gap: 0.5rem;
  }
  .btn-paste {
    flex: 1;
    justify-content: center;
  }
  .btn-download-main {
    flex: 2;
    justify-content: center;
  }
  .result-header {
    flex-direction: column;
  }
  .result-thumb-wrapper {
    width: 100%;
    height: 180px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}