/* ==========================================================================
   MediaFetch - Modern Premium Video & Audio Downloader Stylesheet
   ========================================================================== */

:root {
  --primary: #10b981;
  --primary-hover: #059669;
  --primary-dark: #047857;
  --primary-light: #ecfdf5;
  --primary-glow: rgba(16, 185, 129, 0.25);
  
  --secondary: #3b82f6;
  --secondary-hover: #2563eb;
  
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  
  --bg-gradient: linear-gradient(135deg, #064e3b 0%, #0f172a 100%);
  --hero-bg: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 20px 30px -10px rgba(16, 185, 129, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --glow-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

button, input {
  font-family: inherit;
  outline: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Header & Navigation (Universal Responsive for iPhone, Android, Tablet)
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition-fast);
  padding-top: env(safe-area-inset-top, 0px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  position: relative;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--dark);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, #047857 100%);
  color: var(--white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px var(--primary-glow);
  flex-shrink: 0;
}

.brand-logo span.highlight {
  color: var(--primary);
}

.brand-badge {
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.25);
  margin-left: 0.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.25rem;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--gray-600);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-lang {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--white);
  border: 1px solid var(--gray-300);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.btn-lang:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
}

.mobile-menu-btn {
  display: none;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  color: var(--dark);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.mobile-menu-btn:active {
  transform: scale(0.94);
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* ==========================================================================
   Mobile Nav Drawer (For Android, iPhone, Tablet)
   ========================================================================== */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1050;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100%;
  height: 100dvh;
  background: var(--white);
  z-index: 1100;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 1.5rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-drawer.active {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--gray-200);
}

.mobile-nav-close {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav-close:active {
  background: var(--gray-200);
  transform: scale(0.92);
}

.mobile-nav-body {
  flex: 1;
  padding: 1.5rem 0;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-link i {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

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

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

.mobile-nav-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.mobile-lang-pill {
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--gray-100);
  color: var(--gray-800);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.btn-mobile-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--primary);
  color: var(--white);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 14px var(--primary-glow);
  text-align: center;
  transition: all var(--transition-fast);
}

.btn-mobile-action:active {
  background: var(--primary-hover);
  transform: scale(0.98);
}

/* ==========================================================================
   Hero Downloader Section
   ========================================================================== */
.hero {
  background: var(--hero-bg);
  padding: 4rem 0 3rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--gray-200);
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-title span.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #047857 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--gray-600);
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

/* Downloader Search Box */
.downloader-box {
  background: var(--white);
  padding: 0.85rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-normal);
  position: relative;
  margin-bottom: 1.25rem;
}

.downloader-box:focus-within {
  box-shadow: var(--glow-shadow), 0 0 0 2px var(--primary);
}

.input-wrapper {
  display: flex;
  align-items: center;
  position: relative;
  gap: 0.5rem;
}

.input-icon {
  font-size: 1.2rem;
  color: var(--gray-400);
  padding-left: 0.85rem;
}

.url-input {
  flex: 1;
  border: none;
  padding: 0.9rem 0.5rem;
  font-size: 1.05rem;
  color: var(--dark);
  background: transparent;
}

.url-input::placeholder {
  color: var(--gray-400);
}

.btn-paste {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-paste:hover {
  background: var(--gray-200);
  color: var(--dark);
}

.btn-clear {
  display: none;
  background: none;
  border: none;
  color: var(--gray-400);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.5rem;
}

.btn-clear:hover {
  color: var(--gray-700);
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  border: none;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all var(--transition-fast);
  min-width: 150px;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

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

.btn-download.loading {
  pointer-events: none;
  opacity: 0.85;
}

/* Helper Sample Pills */
.sample-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.sample-btn {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.sample-btn:hover {
  background: var(--white);
  border-color: var(--primary);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

/* Supported Badges */
.supported-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--gray-300);
}

.supported-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.platform-badges {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.badge-item i {
  font-size: 1rem;
}

.badge-item.yt i { color: #ff0000; }
.badge-item.tt i { color: #000000; }
.badge-item.ig i { color: #e1306c; }
.badge-item.th i { color: #000000; }
.badge-item.fb i { color: #1877f2; }
.badge-item.tw i { color: #000000; }

/* ==========================================================================
   Result Container / Media Preview Box
   ========================================================================== */
.result-section {
  display: none;
  margin-top: 2rem;
  text-align: left;
  animation: fadeIn 0.4s ease forwards;
}

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

.result-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--card-shadow-hover);
  overflow: hidden;
}

.result-header {
  background: var(--gray-900);
  color: var(--white);
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.result-platform-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.result-body {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.75rem;
}

.thumbnail-box {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  aspect-ratio: 16 / 9;
  background: var(--gray-900);
}

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

.duration-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.media-info {
  display: flex;
  flex-direction: column;
}

.media-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.media-author {
  font-size: 0.9rem;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

/* Format Options Table/List */
.format-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.format-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.format-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.format-row:hover {
  background: var(--white);
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.12);
}

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

.format-badge {
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.format-badge.video {
  background: #dbeafe;
  color: #1e40af;
}

.format-badge.audio {
  background: #fef3c7;
  color: #92400e;
}

.format-badge.image {
  background: #ede9fe;
  color: #6d28d9;
}

.photo-gallery-preview {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.5rem 0;
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.photo-gallery-thumb {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 2px solid var(--gray-200);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.photo-gallery-thumb:hover {
  border-color: var(--primary);
  transform: scale(1.05);
}

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

.format-size {
  font-size: 0.8rem;
  color: var(--gray-500);
}

.format-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-action-download {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--primary);
  color: var(--white) !important;
  text-decoration: none !important;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.btn-action-download:hover {
  background: var(--primary-hover);
  color: var(--white) !important;
  transform: translateY(-1px);
}

.btn-qr {
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-qr:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
}

/* ==========================================================================
   Tabbed Platform Explorer
   ========================================================================== */
.section-platform-tabs {
  padding: 4rem 0;
  background: var(--white);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-600);
}

.nav-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  background: var(--gray-200);
}

.tab-btn.active {
  background: var(--dark);
  color: var(--white);
  border-color: var(--dark);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.tab-content-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content-panel.active {
  display: block;
}

.platform-detail-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.detail-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
}

.detail-text p {
  color: var(--gray-600);
  margin-bottom: 1.25rem;
}

.detail-features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.detail-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.detail-features li i {
  color: var(--primary);
}

.detail-media {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  text-align: center;
}

.detail-media img {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   How It Works (3 Steps)
   ========================================================================== */
.section-how {
  padding: 4.5rem 0;
  background: var(--gray-50);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.step-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  border: 1px solid var(--gray-200);
  box-shadow: var(--card-shadow);
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--primary);
}

.step-number {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  background: var(--dark);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  border: 3px solid var(--white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.step-icon-wrapper {
  width: 70px;
  height: 70px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 1rem auto 1.25rem;
}

.step-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* ==========================================================================
   Features / Benefits Grid
   ========================================================================== */
.section-features {
  padding: 4.5rem 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.feature-item {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-fast);
}

.feature-item:hover {
  background: var(--white);
  border-color: var(--primary);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.feature-item h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* ==========================================================================
   FAQ Accordion Section
   ========================================================================== */
.section-faq {
  padding: 4.5rem 0;
  background: var(--gray-50);
}

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

.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--gray-300);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: none;
  border: none;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  font-size: 0.9rem;
  color: var(--gray-400);
  transition: transform var(--transition-normal);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 1.5rem;
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--dark-light);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand .brand-logo {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 1.25rem;
}

.footer-col h5 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--gray-500);
  flex-wrap: wrap;
  gap: 1rem;
}

.disclaimer-box {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--gray-400);
  margin-bottom: 2rem;
  border-left: 3px solid var(--primary);
}

/* ==========================================================================
   Modals & Toast
   ========================================================================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 420px;
  width: 100%;
  padding: 2rem;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--gray-400);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--dark);
}

.qr-preview {
  margin: 1.5rem auto;
  width: 180px;
  height: 180px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px dashed var(--gray-300);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: var(--dark);
  color: var(--white);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left: 4px solid var(--primary);
}

.toast.error {
  border-left: 4px solid #ef4444;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Download Progress Bar */
.download-progress {
  display: none;
  margin-top: 1rem;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  overflow: hidden;
  height: 8px;
}

.download-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, #34d399 100%);
  transition: width 0.3s ease;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
/* ==========================================================================
   Responsive Breakpoints (Android, Tablet, iPhone, iPad)
   ========================================================================== */
@media (max-width: 1024px) {
  .nav {
    height: 66px;
  }

  .nav-links {
    gap: 0.65rem;
  }

  .nav-link {
    font-size: 0.875rem;
    padding: 0.4rem 0.55rem;
  }

  .brand-logo {
    font-size: 1.25rem;
  }

  .features-grid, .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  
  .platform-detail-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .header {
    background: rgba(255, 255, 255, 0.98);
  }

  .nav {
    height: 62px;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero-title {
    font-size: 1.85rem;
    line-height: 1.25;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }
  
  .nav-actions {
    gap: 0.5rem;
  }

  .btn-lang {
    padding: 0.45rem 0.65rem;
    font-size: 0.8rem;
  }

  .btn-lang span {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
    width: 40px;
    height: 40px;
  }
  
  .input-wrapper {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn-download {
    width: 100%;
  }
  
  .result-body {
    grid-template-columns: 1fr;
    padding: 1.25rem;
    gap: 1.25rem;
  }
  
  .features-grid, .steps-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .brand-logo {
    font-size: 1.15rem;
    gap: 0.45rem;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .brand-badge {
    display: none;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .hero-tag {
    font-size: 0.75rem;
    padding: 0.35rem 0.85rem;
  }

  .sample-links {
    gap: 0.4rem;
  }

  .sample-btn {
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
  }

  .format-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .format-actions {
    width: 100%;
    justify-content: space-between;
  }

  .btn-action-download {
    flex: 1;
    justify-content: center;
  }
}