/* ============================================
   ProxyCompare.top — Main CSS
   Design System & Animations
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --blue-600: #2563EB;
  --blue-700: #1D4ED8;
  --indigo-600: #6366F1;
  --purple-600: #9333EA;
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-400: #94A3B8;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50: #F8FAFC;
  --white: #FFFFFF;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.6);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.02);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.12);
  --shadow-blue: 0 10px 40px rgba(37, 99, 235, 0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--white);
  color: var(--slate-800);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- Animated Gradient Background ---- */
.hero-gradient {
  background: linear-gradient(135deg, #EFF6FF 0%, #EDE9FE 25%, #F0F9FF 50%, #F5F3FF 75%, #EFF6FF 100%);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---- Glassmorphism ---- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
}

.glass-dark {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.08);
}

/* ---- Navigation ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226,232,240,0.8);
  box-shadow: 0 1px 20px rgba(0,0,0,0.04);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
}

.nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--blue-600);
  background: rgba(37,99,235,0.06);
}

/* Mega Menu */
.mega-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 640px;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: all var(--transition-base);
  z-index: 200;
}

.mega-menu.active,
.has-mega-menu:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  padding: 0.65rem 1.5rem;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--indigo-600));
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 50px rgba(37,99,235,0.35);
}

.btn-secondary {
  background: var(--white);
  color: var(--blue-600);
  border: 1.5px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--blue-600);
  box-shadow: var(--shadow-blue);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
}

/* ---- Cards ---- */
.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: rgba(37,99,235,0.2);
}

.card-featured {
  border: 2px solid var(--blue-600);
  box-shadow: var(--shadow-blue);
  position: relative;
  overflow: hidden;
}

.card-featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--indigo-600), var(--purple-600));
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.badge-sponsored {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  color: var(--white);
}

.badge-featured {
  background: linear-gradient(135deg, var(--blue-600), var(--indigo-600));
  color: var(--white);
}

.badge-new { background: #10B981; color: var(--white); }
.badge-hot { background: #EF4444; color: var(--white); }
.badge-editor { background: var(--purple-600); color: var(--white); }
.badge-budget { background: #10B981; color: var(--white); }
.badge-enterprise { background: var(--slate-800); color: var(--white); }

/* ---- Rating Stars ---- */
.stars {
  display: flex;
  gap: 2px;
  color: #F59E0B;
}

/* ---- Provider Logo ---- */
.provider-logo {
  width: 80px;
  height: 32px;
  object-fit: contain;
  object-position: left center;
}

/* ---- Comparison Table ---- */
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.compare-table th {
  background: linear-gradient(135deg, var(--blue-600), var(--indigo-600));
  color: var(--white);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 1rem;
  text-align: center;
}

.compare-table th:first-child {
  text-align: left;
  background: var(--slate-50);
  color: var(--slate-700);
}

.compare-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--slate-100);
  font-size: 0.875rem;
  text-align: center;
  vertical-align: middle;
}

.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--slate-700);
  background: var(--slate-50);
}

.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: rgba(37,99,235,0.03); }

.check-yes { color: #10B981; font-size: 1.1rem; }
.check-no { color: #EF4444; font-size: 1.1rem; }

/* ---- Section Headers ---- */
.section-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.15;
  color: var(--slate-900);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--slate-600);
  max-width: 640px;
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue-600) 0%, var(--indigo-600) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Sponsor Banner ---- */
.sponsor-banner {
  background: linear-gradient(135deg, #1E3A8A 0%, #1D4ED8 50%, #4F46E5 100%);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.5rem;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow-blue);
  position: relative;
  overflow: hidden;
}

.sponsor-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}

/* ---- Sticky Sidebar ---- */
.sticky-sidebar {
  position: sticky;
  top: 80px;
}

/* ---- Newsletter ---- */
.newsletter-section {
  background: linear-gradient(135deg, var(--blue-600), var(--indigo-600), var(--purple-600));
  border-radius: var(--radius-2xl);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.newsletter-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

/* ---- Footer ---- */
.footer {
  background: var(--slate-900);
  color: var(--slate-400);
}

.footer-link {
  color: var(--slate-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-link:hover { color: var(--white); }

/* ---- Animations ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* Float animation */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.float-anim { animation: float 6s ease-in-out infinite; }

/* Pulse */
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* ---- Progress Bar ---- */
.progress-bar {
  height: 6px;
  background: var(--slate-100);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--blue-600), var(--indigo-600));
  transition: width 1.2s ease;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--slate-500);
}

.breadcrumb a {
  color: var(--blue-600);
  text-decoration: none;
}

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

/* ---- TOC ---- */
.toc {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.toc a {
  display: block;
  color: var(--slate-700);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.3rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: all var(--transition-fast);
}

.toc a:hover, .toc a.active {
  color: var(--blue-600);
  border-left-color: var(--blue-600);
}

/* ---- Score Gauge ---- */
.score-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: conic-gradient(var(--blue-600) calc(var(--score) * 3.6deg), var(--slate-100) 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.score-circle::before {
  content: '';
  width: 64px;
  height: 64px;
  background: var(--white);
  border-radius: 50%;
  position: absolute;
}

.score-value {
  position: relative;
  z-index: 1;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--slate-900);
}

/* ---- Search Bar ---- */
.search-input {
  width: 100%;
  padding: 0.875rem 1.25rem 0.875rem 3rem;
  background: var(--white);
  border: 2px solid var(--slate-200);
  border-radius: var(--radius-full);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--slate-800);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}

/* ---- Tabs ---- */
.tab-btn {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-600);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
}

.tab-btn.active, .tab-btn:hover {
  background: var(--blue-600);
  color: var(--white);
}

/* ---- Tooltip ---- */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 120%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--slate-900);
  color: var(--white);
  font-size: 0.75rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.tooltip:hover::after { opacity: 1; }

/* ---- Blog Article ---- */
.article-content h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-900);
  margin: 2rem 0 0.75rem;
}

.article-content h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--slate-800);
  margin: 1.5rem 0 0.5rem;
}

.article-content p { margin-bottom: 1rem; color: var(--slate-700); }

.article-content ul, .article-content ol {
  margin: 0.75rem 0 1rem 1.5rem;
  color: var(--slate-700);
}

.article-content li { margin-bottom: 0.4rem; }

.article-content a { color: var(--blue-600); }

.article-content blockquote {
  border-left: 4px solid var(--blue-600);
  padding-left: 1rem;
  color: var(--slate-600);
  font-style: italic;
  margin: 1.5rem 0;
}

/* ---- Tools ---- */
.tool-input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--slate-200);
  border-radius: var(--radius-lg);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--slate-800);
  background: var(--white);
  transition: border-color var(--transition-fast);
}

.tool-input:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}

textarea.tool-input {
  min-height: 160px;
  resize: vertical;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.85rem;
}

.tool-output {
  background: var(--slate-900);
  color: #10B981;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  min-height: 120px;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .mega-menu { width: calc(100vw - 2rem); }
  .hide-mobile { display: none !important; }
  .compare-table { font-size: 0.8rem; }
  .compare-table th, .compare-table td { padding: 0.6rem 0.5rem; }
}

@media (max-width: 640px) {
  .btn-lg { padding: 0.75rem 1.5rem; font-size: 0.9rem; }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--slate-100); }
::-webkit-scrollbar-thumb { background: var(--blue-600); border-radius: 3px; }

/* ---- Selection ---- */
::selection { background: rgba(37,99,235,0.2); color: var(--slate-900); }

/* ---- Print ---- */
@media print {
  .navbar, .footer, .sticky-sidebar { display: none; }
  .card { box-shadow: none; border: 1px solid #ddd; }
}

/* ---- Swiper Custom ---- */
.swiper-pagination-bullet-active { background: var(--blue-600) !important; }
.swiper-button-next, .swiper-button-prev { color: var(--blue-600) !important; }

/* ---- Chart Container ---- */
.chart-container {
  position: relative;
  width: 100%;
  max-height: 320px;
}

/* ---- Animated Number ---- */
.count-up {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 2.5rem;
  color: var(--blue-600);
}

/* ---- Pill Filters ---- */
.filter-pill {
  padding: 0.4rem 1rem;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--slate-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--white);
}

.filter-pill:hover, .filter-pill.active {
  border-color: var(--blue-600);
  color: var(--blue-600);
  background: rgba(37,99,235,0.06);
}

/* ---- Top Bar ---- */
.top-bar {
  background: linear-gradient(90deg, var(--blue-700), var(--indigo-600));
  color: var(--white);
  font-size: 0.8rem;
  padding: 0.4rem 0;
  text-align: center;
}