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

:root {
  --bg-primary: #0c0c1d;
  --bg-secondary: #12122a;
  --bg-card: #1a1a3e;
  --bg-card-hover: #222255;
  --bg-input: #16163a;
  --bg-drop: #1e1e4a;
  --text-primary: #f0f0ff;
  --text-secondary: #9999cc;
  --text-muted: #6666aa;
  --accent-1: #7c3aed;
  --accent-2: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #7c3aed, #3b82f6);
  --accent-glow: rgba(124, 58, 237, 0.3);
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --border: #2a2a5a;
  --border-light: #3a3a6a;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 20% 50%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

a {
  color: var(--accent-2);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-1);
}

img {
  max-width: 100%;
  height: auto;
}

/* Header */
.header {
  background: rgba(12, 12, 29, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary) !important;
  font-size: 1.3rem;
  font-weight: 700;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: white;
  font-weight: 800;
}

.logo-text {
  letter-spacing: -0.5px;
}

.highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 5px;
}

.nav-links > li > a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links > li > a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
  list-style: none;
  z-index: 200;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.dropdown-menu li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: var(--transition);
}

.dropdown-menu li a:hover {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.1);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-search {
  max-width: 560px;
  margin: 0 auto;
}

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-wrapper input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font);
  transition: var(--transition);
  outline: none;
}

.search-wrapper input:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.search-wrapper input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 18px;
  font-size: 1.2rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  z-index: 50;
  max-height: 300px;
  overflow-y: auto;
}

.search-results.show {
  display: block;
}

.search-results .result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.search-results .result-item:hover {
  background: rgba(124, 58, 237, 0.1);
  color: var(--text-primary);
}

.search-results .result-item .ri-icon {
  font-size: 1.2rem;
}

.search-results .result-item .ri-name {
  font-weight: 500;
}

.search-results .result-item .ri-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.quick-convert {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.quick-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.quick-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary) !important;
  font-size: 0.82rem;
  font-weight: 500;
  transition: var(--transition);
}

.tag:hover {
  border-color: var(--accent-1);
  color: var(--text-primary) !important;
  background: rgba(124, 58, 237, 0.1);
  transform: translateY(-1px);
}

/* Sections */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1.05rem;
}

.categories-section,
.features-section,
.supported-section,
.stats-section,
.trust-section {
  padding: 70px 0;
}

.categories-section {
  background: var(--bg-secondary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  color: var(--text-primary) !important;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition);
}

.category-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.category-card:hover::before {
  opacity: 1;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.category-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.category-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.card-arrow {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent-2);
  font-size: 1.1rem;
  transition: var(--transition);
}

.category-card:hover .card-arrow {
  transform: translateX(4px);
  color: var(--accent-1);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
}

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

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Formats Showcase */
.formats-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.format-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.format-group h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.format-group p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Stats / Trust */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  text-align: center;
}

.stat-item {
  padding: 24px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.trust-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px;
  padding: 20px 0;
}

.trust-item {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-muted);
  opacity: 0.6;
  letter-spacing: -0.5px;
}

/* Popular Conversions */
.popular-section {
  padding: 0 0 70px;
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.popular-link {
  display: block;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary) !important;
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  transition: var(--transition);
}

.popular-link:hover {
  border-color: var(--accent-1);
  background: rgba(124, 58, 237, 0.08);
  color: var(--text-primary) !important;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 50px 0 30px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-col p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-col ul li a:hover {
  color: var(--accent-2);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-lang {
  display: flex;
  gap: 12px;
  align-items: center;
}

.footer-lang a {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
}

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

/* ==================== */
/* CONVERTER PAGE       */
/* ==================== */
.converter-page {
  padding: 40px 0 60px;
}

.converter-header {
  text-align: center;
  margin-bottom: 36px;
}

.converter-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.converter-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Category Tabs */
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}

.category-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.category-tab:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
}

.category-tab.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

/* Converter Card */
.converter-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

.converter-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.converter-select-group {
  flex: 1;
}

.converter-select-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.converter-select-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239999cc' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.converter-select-group select:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.converter-swap {
  width: 44px;
  height: 44px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.2rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-top: 18px;
}

.converter-swap:hover {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
  transform: rotate(180deg);
}

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-md);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 20px;
  position: relative;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent-1);
  background: rgba(124, 58, 237, 0.05);
}

.drop-zone.drag-over {
  border-color: var(--accent-2);
  background: rgba(59, 130, 246, 0.08);
}

.drop-zone-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

.drop-zone-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.drop-zone-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.drop-zone input[type="file"] {
  display: none;
}

/* File Info */
.file-info {
  display: none;
  align-items: center;
  gap: 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 20px;
}

.file-info.show {
  display: flex;
}

.file-info-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

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

.file-info-name {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-info-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.file-info-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.file-info-remove:hover {
  color: var(--error);
  background: rgba(239, 68, 68, 0.1);
}

/* Convert Button */
.btn-convert {
  width: 100%;
  padding: 16px;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 1.05rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-convert:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-convert:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-convert .spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn-convert.loading .spinner {
  display: inline-block;
}

.btn-convert.loading .btn-text {
  display: none;
}

.btn-convert.loading .btn-loading-text {
  display: inline;
}

.btn-loading-text {
  display: none;
}

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

/* Progress */
.converter-progress {
  display: none;
  margin-top: 20px;
}

.converter-progress.show {
  display: block;
}

.progress-bar-track {
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 3px;
  width: 0%;
  transition: width 0.4s ease;
}

.progress-status {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Result */
.converter-result {
  display: none;
  margin-top: 20px;
  text-align: center;
}

.converter-result.show {
  display: block;
}

.result-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.result-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.result-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
  color: white;
}

.btn-convert-again {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  margin-left: 10px;
}

.btn-convert-again:hover {
  border-color: var(--accent-1);
  color: var(--text-primary);
}

/* Error */
.converter-error {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--error);
  font-size: 0.9rem;
}

.converter-error.show {
  display: block;
}

/* Format Badges */
.format-badges {
  margin-top: 16px;
}

.format-badges-title {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.format-badges-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.format-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}

/* ==================== */
/* BLOG                 */
/* ==================== */

.blog-hero {
  padding: 60px 0 40px;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  justify-content: center;
}

.blog-filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.blog-filter-btn:hover,
.blog-filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108, 99, 255, 0.08);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
  padding-bottom: 60px;
}

.blog-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.blog-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.blog-card-body {
  padding: 28px;
}

.blog-card-cat {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cat-document { background: rgba(108, 99, 255, 0.15); color: #8b83ff; }
.cat-image    { background: rgba(52, 211, 153, 0.15); color: #34d399; }
.cat-audio    { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.cat-video    { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.cat-ebook    { background: rgba(168, 85, 247, 0.15); color: #a855f7; }
.cat-archive  { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }

.blog-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-meta,
.blog-article-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.blog-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.blog-empty a {
  color: var(--accent);
}

/* Single Article */
.blog-article {
  padding: 20px 0 70px;
}

.blog-breadcrumb {
  margin-bottom: 28px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.blog-breadcrumb a {
  color: var(--text-secondary);
}

.blog-breadcrumb a:hover {
  color: var(--accent);
}

.blog-breadcrumb-sep {
  margin: 0 10px;
  color: var(--border);
}

.blog-article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 50px;
  align-items: start;
}

.blog-article-main {
  min-width: 0;
}

.blog-article-header {
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.blog-article-header h1 {
  font-size: 2rem;
  line-height: 1.3;
  margin: 12px 0;
}

.blog-article-body h2 {
  font-size: 1.4rem;
  margin: 32px 0 14px;
}

.blog-article-body p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.blog-article-body ul,
.blog-article-body ol {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  padding-left: 24px;
}

.blog-article-body li {
  margin-bottom: 8px;
}

.blog-article-body ul ul,
.blog-article-body ol ol {
  margin-bottom: 0;
}

.blog-article-body a {
  color: var(--accent);
  text-decoration: underline;
}

.blog-article-body a:hover {
  color: #8b83ff;
}

.blog-cta {
  background: var(--gradient);
  border-radius: 16px;
  padding: 36px;
  text-align: center;
  margin: 40px 0;
}

.blog-cta p {
  color: rgba(255,255,255,0.9) !important;
  font-size: 1.15rem;
  margin-bottom: 16px;
}

.blog-cta .btn-download {
  display: inline-block;
  padding: 12px 32px;
  font-size: 1rem;
  background: #fff;
  color: var(--accent);
}

.blog-cta .btn-download:hover {
  background: #f0f0ff;
}

/* Related Articles */
.blog-article-nav {
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.blog-article-nav h3 {
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.blog-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.blog-related-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: var(--transition);
}

.blog-related-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.blog-related-card h4 {
  font-size: 0.95rem;
  line-height: 1.4;
  margin: 8px 0;
}

.blog-related-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Sidebar */
.blog-sidebar {
  position: sticky;
  top: 90px;
}

.blog-sidebar-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

.blog-sidebar-section h3 {
  font-size: 1rem;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.blog-sidebar-cats li {
  margin-bottom: 6px;
}

.blog-sidebar-cats a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.blog-sidebar-cats a:hover,
.blog-sidebar-cats a.active {
  color: var(--accent);
  background: rgba(108, 99, 255, 0.06);
}

.blog-sidebar-recent li {
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.blog-sidebar-recent li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.blog-sidebar-recent a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.blog-sidebar-recent a:hover {
  color: var(--accent);
}

.blog-sidebar-cta p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 14px;
  line-height: 1.5;
}

/* ==================== */
/* CONTACT              */
/* ==================== */

.contact-section {
  padding: 40px 0 80px;
}

.contact-alert {
  padding: 16px 24px;
  border-radius: 10px;
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.contact-alert.success {
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: #34d399;
}

.contact-alert.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.contact-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.contact-info-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 12px;
}

.contact-info-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.contact-info-email {
  font-size: 1rem;
  color: var(--accent);
}

.contact-info-email:hover {
  text-decoration: underline;
}

.contact-info-text {
  color: var(--text-secondary) !important;
  font-size: 0.95rem;
  margin: 0 !important;
}

.contact-info-help {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-top: 20px;
}

.contact-info-help a {
  color: var(--accent);
}

.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 36px;
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-field {
  margin-bottom: 20px;
}

.contact-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.contact-field input,
.contact-field textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.93rem;
  font-family: inherit;
  transition: all 0.2s;
  box-sizing: border-box;
}

.contact-field input::placeholder,
.contact-field textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.contact-field input:focus,
.contact-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.12);
}

.contact-submit {
  width: 100%;
  padding: 14px 32px;
  background: var(--gradient);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.contact-submit:hover {
  opacity: 0.9;
}

.legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0 70px;
}

.legal-page h2 {
  font-size: 1.3rem;
  margin: 32px 0 14px;
}

.legal-page p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-page ul {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  padding-left: 24px;
}

.legal-page li {
  margin-bottom: 8px;
}

/* ==================== */
/* ABOUT PAGE           */
/* ==================== */

.about-story {
  padding: 40px 0 70px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-highlight-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
}

.about-highlight-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.about-highlight-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.about-highlight-num {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-highlight-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-left: auto;
}

.about-how {
  padding: 70px 0;
}

.about-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.about-step {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition);
}

.about-step:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin: 0 auto 16px;
}

.about-step h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.about-step p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.about-step-arrow {
  font-size: 1.8rem;
  color: var(--accent);
  text-align: center;
}

.about-cta {
  padding: 70px 0 80px;
}

.about-cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.about-cta-content h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.about-cta-content p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1.1rem;
}

/* ==================== */
/* RESPONSIVE           */
/* ==================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .blog-article-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    position: static;
  }

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

@media (max-width: 768px) {
  .hero {
    padding: 50px 0 40px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .about-step-arrow {
    transform: rotate(90deg);
  }

  .about-highlight-card {
    padding: 18px 20px;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(12, 12, 29, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links > li > a {
    display: block;
    padding: 14px 16px;
    font-size: 1rem;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 16px;
    display: none;
    min-width: auto;
  }

  .dropdown.open .dropdown-menu {
    display: block;
  }

  .dropdown > a::after {
    content: ' ▾';
    transition: var(--transition);
  }

  .dropdown.open > a::after {
    content: ' ▴';
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }

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

  .formats-showcase {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .converter-card {
    padding: 24px 20px;
  }

  .converter-row {
    flex-direction: column;
    gap: 12px;
  }

  .converter-swap {
    margin-top: 0;
    transform: rotate(90deg);
  }

  .converter-swap:hover {
    transform: rotate(270deg);
  }

  .converter-header h1 {
    font-size: 1.6rem;
  }

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

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

  .category-tabs {
    gap: 6px;
  }

  .category-tab {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-article-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    position: static;
  }

  .blog-related-grid {
    grid-template-columns: 1fr;
  }

  .blog-article-header h1 {
    font-size: 1.5rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form {
    padding: 24px 20px;
  }

  .contact-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.7rem;
  }

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

  .category-card {
    padding: 18px 14px;
  }

  .card-icon {
    font-size: 1.5rem;
  }

  .category-card h3 {
    font-size: 0.85rem;
  }

  .popular-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}