@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,600&family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap&subset=vietnamese,latin-ext');

:root {
  --bg-main: #070a13;
  --bg-card: rgba(15, 23, 42, 0.72);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-surface: #0f172a;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.35);
  
  --primary: #38bdf8;
  --primary-rgb: 56, 189, 248;
  --primary-hover: #0284c7;
  --accent-purple: #a855f7;
  --accent-pink: #ec4899;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --grad-primary: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --grad-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --grad-fire: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --grad-card: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.8) 100%);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --font-heading: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-sans: 'Inter', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.15);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-secondary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 48px 48px, 48px 48px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 900px;
}

/* Typography Helpers */
.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

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

.text-gradient-amber {
  background: var(--grad-fire);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-primary);
  color: #070a13;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.5);
  color: #070a13;
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.7);
  color: var(--text-primary);
  border-color: var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.9);
  border-color: var(--border-glow);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-glow {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

.btn-glow:hover {
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.6);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2.2rem;
  font-size: 1.05rem;
}

/* Badge Pills */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--primary);
  backdrop-filter: blur(10px);
  margin-bottom: 1.25rem;
}

.badge-pill-purple {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

.badge-pill-emerald {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
}

/* Glass Cards */
.card-glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.card-glass:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), 0 0 25px rgba(56, 189, 248, 0.12);
}

/* Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 10, 19, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.site-header .header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: 1440px;
  width: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo img {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
}

.site-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  white-space: nowrap;
}

.site-logo-text .logo-brand {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
}

.site-logo-text .logo-sub {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--primary);
  letter-spacing: 0.05em;
  font-weight: 500;
  white-space: nowrap;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  margin: 0 0.75rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  position: relative;
  padding: 0.4rem 0.2rem;
  white-space: nowrap;
  display: inline-block;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
}

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

/* ==========================================================================
   MOBILE NAVIGATION & DRAWER SYSTEM (PREMIUM DESIGN)
   ========================================================================== */

/* Menu Toggle Button */
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  cursor: pointer;
  padding: 0;
  transition: all 0.25s ease;
  position: relative;
  outline: none;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-1px);
}

.menu-toggle:active {
  transform: scale(0.96);
}

/* Stylized Animated Hamburger */
.hamburger-box {
  width: 20px;
  height: 14px;
  display: inline-block;
  position: relative;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
  width: 20px;
  height: 2px;
  background-color: #f8fafc;
  border-radius: 2px;
  position: absolute;
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.hamburger-inner {
  top: 50%;
  transform: translateY(-50%);
  display: block;
}

.hamburger-inner::before,
.hamburger-inner::after {
  content: "";
  display: block;
}

.hamburger-inner::before {
  top: -6px;
}

.hamburger-inner::after {
  bottom: -6px;
}

.menu-toggle.active .hamburger-inner {
  background-color: transparent;
}

.menu-toggle.active .hamburger-inner::before {
  transform: translateY(6px) rotate(45deg);
  background-color: #38bdf8;
}

.menu-toggle.active .hamburger-inner::after {
  transform: translateY(-6px) rotate(-45deg);
  background-color: #38bdf8;
}

/* Mobile Drawer Overlay */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile Drawer Container */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  height: 100dvh;
  background: linear-gradient(180deg, rgba(13, 20, 36, 0.98) 0%, rgba(7, 10, 19, 0.99) 100%);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: -15px 0 45px rgba(0, 0, 0, 0.65);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.mobile-drawer.open {
  transform: translateX(0);
}

@media (max-width: 420px) {
  .mobile-drawer {
    max-width: 100%;
    border-left: none;
  }
}

/* Mobile Drawer Header */
.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(15, 23, 42, 0.5);
  flex-shrink: 0;
}

.mobile-drawer-header .site-logo {
  gap: 0.65rem;
}

.mobile-drawer-header .site-logo img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.mobile-drawer-header .logo-brand {
  font-size: 1.1rem;
}

.mobile-drawer-header .logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.mobile-drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.mobile-drawer-close:hover,
.mobile-drawer-close:active {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.35);
  color: #f87171;
  transform: rotate(90deg);
}

/* Mobile Drawer Scrollable Body */
.mobile-drawer-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.15rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-section-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #64748b;
  margin-bottom: 0.65rem;
  padding-left: 0.5rem;
}

/* Nav Cards List */
.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-item {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.mobile-nav-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateX(3px);
}

.mobile-nav-card:active {
  transform: scale(0.99);
}

.mobile-nav-card.active {
  background: linear-gradient(90deg, rgba(2, 132, 199, 0.16) 0%, rgba(168, 85, 247, 0.08) 100%);
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: inset 0 0 12px rgba(56, 189, 248, 0.1);
}

.mobile-nav-card.active .mobile-nav-heading {
  color: #38bdf8;
  font-weight: 700;
}

.mobile-nav-card.active .mobile-nav-arrow {
  color: #38bdf8;
  transform: translateX(2px);
}

/* Icon Box */
.mobile-nav-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  border: 1px solid transparent;
}

.mobile-nav-icon.icon-cyan   { background: rgba(6, 182, 212, 0.12); color: #22d3ee; border-color: rgba(6, 182, 212, 0.25); }
.mobile-nav-icon.icon-blue   { background: rgba(56, 189, 248, 0.12); color: #38bdf8; border-color: rgba(56, 189, 248, 0.25); }
.mobile-nav-icon.icon-purple { background: rgba(168, 85, 247, 0.12); color: #c084fc; border-color: rgba(168, 85, 247, 0.25); }
.mobile-nav-icon.icon-indigo { background: rgba(99, 102, 241, 0.12); color: #818cf8; border-color: rgba(99, 102, 241, 0.25); }
.mobile-nav-icon.icon-green  { background: rgba(16, 185, 129, 0.12); color: #34d399; border-color: rgba(16, 185, 129, 0.25); }
.mobile-nav-icon.icon-amber  { background: rgba(245, 158, 11, 0.12); color: #fbbf24; border-color: rgba(245, 158, 11, 0.25); }
.mobile-nav-icon.icon-emerald{ background: rgba(16, 185, 129, 0.12); color: #10b981; border-color: rgba(16, 185, 129, 0.25); }
.mobile-nav-icon.icon-rose   { background: rgba(244, 63, 94, 0.12); color: #fb7185; border-color: rgba(244, 63, 94, 0.25); }

/* Content block */
.mobile-nav-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.mobile-nav-heading {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: #f1f5f9;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-nav-sub {
  font-size: 0.72rem;
  color: #94a3b8;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Badges */
.mobile-nav-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.badge-blue   { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.badge-purple { background: rgba(168, 85, 247, 0.15); color: #c084fc; }
.badge-indigo { background: rgba(99, 102, 241, 0.15); color: #a5b4fc; }
.badge-green  { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-amber  { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }

.mobile-nav-arrow {
  color: #64748b;
  font-size: 1.15rem;
  line-height: 1;
  font-weight: 300;
  transition: transform 0.2s ease, color 0.2s ease;
  margin-left: 0.1rem;
}

/* Support Box */
.mobile-drawer-support {
  margin-top: 0.5rem;
}

.mobile-support-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px dashed rgba(56, 189, 248, 0.3);
  border-radius: 12px;
}

.mobile-support-icon {
  font-size: 1.35rem;
  flex-shrink: 0;
}

.mobile-support-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.mobile-support-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: #fff;
}

.mobile-support-sub {
  font-size: 0.7rem;
  color: #94a3b8;
}

/* Bottom Sticky Footer */
.mobile-drawer-footer {
  padding: 1rem 1.15rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 15, 29, 0.95);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex-shrink: 0;
}

.mobile-btn-primary {
  width: 100%;
  text-align: center;
  justify-content: center;
  font-size: 0.92rem;
  padding: 0.75rem 1rem;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.3);
}

.mobile-btn-secondary {
  width: 100%;
  text-align: center;
  justify-content: center;
  font-size: 0.88rem;
  padding: 0.65rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
}

.mobile-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.mobile-drawer-version {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #64748b;
  margin-top: 0.2rem;
}

/* Hero Section */
.hero-section {
  padding: 5.5rem 0 4rem;
  position: relative;
  text-align: center;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-preview {
  margin-top: 2rem;
  position: relative;
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

.hero-preview-img {
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 50px rgba(56, 189, 248, 0.15);
  background: var(--bg-surface);
}

/* Feature Grid */
.section-features {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Feature Card Details */
.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--primary);
}

.feature-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.feature-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.feature-check {
  color: var(--accent-emerald);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* Interactive Widget / Live Simulator */
.interactive-widget {
  background: #0d1322;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin: 3rem 0;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.widget-input-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.widget-input {
  flex: 1;
  min-width: 260px;
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.widget-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

/* Steps / Workflow */
.step-card {
  position: relative;
  padding-left: 4.5rem;
  margin-bottom: 2rem;
}

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  color: #070a13;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.35);
}

/* Pricing Cards */
.pricing-card {
  text-align: center;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--border-glow);
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.2);
  transform: scale(1.03);
}

.pricing-badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-primary);
  color: #070a13;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-points {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 1rem 0 0.25rem;
}

.pricing-price {
  font-size: 1.1rem;
  color: var(--accent-amber);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.5rem 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-answer {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  display: none;
}

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

/* CTA Section */
.cta-banner {
  background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.15) 0%, rgba(15, 23, 42, 0.95) 70%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 4.5rem 2rem;
  text-align: center;
  margin: 6rem 0;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
}

/* Blog Single Article */
.blog-article {
  padding: 4rem 0;
  max-width: 860px;
  margin: 0 auto;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.blog-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #cbd5e1;
}

.blog-content h2, .blog-content h3 {
  margin: 2.2rem 0 1rem;
}

.blog-content p {
  margin-bottom: 1.4rem;
}

.blog-content ul, .blog-content ol {
  margin: 1.2rem 0 1.5rem 1.8rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

.blog-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 1rem 1.5rem;
  background: rgba(56, 189, 248, 0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.8rem 0;
  font-style: italic;
  color: #e2e8f0;
}

/* Footer */
.site-footer {
  background: #04070e;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2.5rem;
  font-size: 0.9rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

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

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1320px) {
  .nav-menu { gap: 0.75rem; }
  .nav-link { font-size: 0.86rem; padding: 0.35rem 0.15rem; }
}

@media (max-width: 1180px) {
  .nav-wrapper { display: none; }
  .menu-toggle { display: flex; }
  .header-actions .header-login-btn { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 1rem; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
}

@media (max-width: 480px) {
  .site-logo img { width: 36px; height: 36px; }
  .site-logo-text .logo-brand { font-size: 1.15rem; }
  .site-logo-text .logo-sub { font-size: 0.6rem; }
  .header-actions .header-cta-btn { font-size: 0.8rem; padding: 0.45rem 0.85rem; }
}

/* ==========================================================================
   ALTERNATING LIGHT / DARK SECTIONS DESIGN SYSTEM
   ========================================================================== */

/* Light Section */
.section-light {
  background-color: #f8fafc;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(56, 189, 248, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.04) 0%, transparent 45%),
    linear-gradient(rgba(15, 23, 42, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  color: #334155;
  padding: 5.5rem 0;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
  position: relative;
}

.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4,
.section-light h5,
.section-light h6 {
  color: #0f172a;
}

.section-light .section-title {
  color: #0f172a;
}

.section-light .section-desc {
  color: #64748b;
}

.section-light p {
  color: #475569;
}

/* Container Narrow Centered */
.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  width: 100%;
}

/* Light Cards */
.section-light .card-glass,
.card-light {
  border-radius: var(--radius-xl);
  padding: 2.2rem 1.8rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  color: #334155;
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.section-light .card-glass::before,
.card-light::before {
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.4), transparent);
}

.section-light .card-glass:hover,
.card-light:hover {
  background: #ffffff;
  border-color: #38bdf8;
  transform: translateY(-4px);
  box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.12), 0 0 20px rgba(56, 189, 248, 0.15);
}

.section-light .feature-title,
.section-light .card-glass h3,
.section-light .card-glass h4 {
  color: #0f172a;
}

.section-light .feature-desc {
  color: #64748b;
}

.section-light .feature-list-item {
  color: #334155;
}

/* Light Badges */
.section-light .badge-pill {
  background: #e0f2fe;
  border-color: #bae6fd;
  color: #0284c7;
}

.section-light .badge-pill-purple {
  background: #f3e8ff;
  border-color: #e9d5ff;
  color: #7e22ce;
}

.section-light .badge-pill-emerald {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #047857;
}

/* Light Steps & Workflow */
.step-card {
  position: relative;
  padding: 1.75rem 2rem 1.75rem 5.5rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-xl);
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.step-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  border-color: #38bdf8;
}

.step-number {
  position: absolute;
  left: 1.5rem;
  top: 1.75rem;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #0284c7, #6366f1);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.section-light .step-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
}

.section-light .step-card h4 {
  color: #0f172a;
}

.section-light .step-card p {
  color: #64748b;
}

.section-light .step-number {
  background: linear-gradient(135deg, #0284c7, #6366f1);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.3);
}

/* 5-Step Workflow Grid */
.workflow-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
  position: relative;
}

@media (max-width: 1200px) {
  .workflow-grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .workflow-grid-5 {
    grid-template-columns: 1fr;
  }
}

/* Pricing Category Tabs Bar */
.pricing-category-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.35rem;
  border-radius: 99px;
  max-width: fit-content;
  margin: 0 auto 3rem;
  backdrop-filter: blur(12px);
  flex-wrap: wrap;
}

.pricing-tab-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.6rem 1.25rem;
  border-radius: 99px;
  cursor: pointer;
  transition: all 0.25s ease;
  outline: none;
}

.pricing-tab-btn:hover {
  color: #f1f5f9;
}

.pricing-tab-btn.active {
  background: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.4);
}

/* 3-Package Standard Grid */
.pricing-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
  margin-bottom: 2.5rem;
}

/* 2-Package VIP Grid */
.pricing-grid-2-vip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 860px;
  margin: 0 auto 3.5rem;
  align-items: stretch;
}

@media (max-width: 1080px) {
  .pricing-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .pricing-grid-3,
  .pricing-grid-2-vip {
    grid-template-columns: 1fr;
  }
}

/* Capacity Box */
.pricing-capacity-box {
  text-align: left;
  font-size: 0.85rem;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.capacity-title {
  font-weight: 700;
  color: #f1f5f9;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.capacity-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  color: #cbd5e1;
  font-size: 0.84rem;
}

.capacity-row:last-child {
  margin-bottom: 0;
}

.capacity-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Group Header */
.pricing-group-header {
  text-align: center;
  margin-bottom: 2rem;
}

/* Light FAQ */
.section-light .faq-item {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.section-light .faq-question {
  color: #0f172a;
}

.section-light .faq-question:hover {
  color: #0284c7;
}

.section-light .faq-answer {
  color: #475569;
}

.section-light .faq-icon {
  background: #f1f5f9;
  color: #475569;
}

/* Light Table */
.section-light table th {
  color: #0f172a;
  border-bottom: 2px solid #cbd5e1;
}

.section-light table td {
  color: #334155;
  border-bottom: 1px solid #e2e8f0;
}

.section-light table tr:hover td {
  background: rgba(241, 245, 249, 0.8);
}

.section-light .btn-secondary {
  background: #e2e8f0;
  color: #0f172a;
  border-color: #cbd5e1;
}

.section-light .btn-secondary:hover {
  background: #cbd5e1;
  color: #000;
}

/* Dark Section explicit */
.section-dark {
  background-color: var(--bg-main);
  color: var(--text-secondary);
  padding: 5.5rem 0;
  position: relative;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--text-primary);
}

/* App Screenshot Frame & Showcase */
.app-screenshot-frame {
  background: rgba(13, 19, 34, 0.95);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 50px rgba(56, 189, 248, 0.15);
  overflow: hidden;
  position: relative;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  margin: 0 auto;
}

.app-screenshot-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.9), 0 0 60px rgba(56, 189, 248, 0.25);
}

.app-screenshot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.25rem;
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.app-screenshot-dots {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.app-screenshot-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.app-screenshot-dots span:nth-child(1) { background: #ef4444; }
.app-screenshot-dots span:nth-child(2) { background: #f59e0b; }
.app-screenshot-dots span:nth-child(3) { background: #10b981; }

.app-screenshot-url {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-left: 0.75rem;
}

.app-screenshot-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.app-screenshot-img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-preview {
  margin: 2rem auto 0;
  max-width: 1200px;
}

.hero-preview-img {
  width: 100%;
  max-width: 1150px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 40px rgba(56, 189, 248, 0.15);
  border: 1px solid var(--border-glow);
  display: block;
  margin: 0 auto;
}

/* Single Post Entry Typography (High Contrast, Magazine Style) */
.entry-content h2 {
  font-size: 1.85rem;
  font-weight: 800;
  color: #0f172a;
  margin: 2.5rem 0 1rem;
  line-height: 1.35;
  border-bottom: 2px solid #f1f5f9;
  padding-bottom: 0.5rem;
}

.entry-content h3 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #1e293b;
  margin: 2rem 0 0.85rem;
  line-height: 1.4;
}

.entry-content h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #334155;
  margin: 1.5rem 0 0.5rem;
}

.entry-content p {
  color: #334155;
  margin-bottom: 1.5rem;
  line-height: 1.85;
}

.entry-content ul,
.entry-content ol {
  margin: 1.25rem 0 1.75rem 1.75rem;
  color: #334155;
}

.entry-content li {
  margin-bottom: 0.65rem;
  line-height: 1.75;
}

.entry-content blockquote {
  border-left: 4px solid var(--primary);
  background: #f8fafc;
  padding: 1.25rem 1.75rem;
  margin: 2rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: #475569;
}

.entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  margin: 2rem auto;
  display: block;
}

.entry-content code {
  background: #f1f5f9;
  color: #0284c7;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.entry-content pre code {
  display: block;
  background: #0f172a;
  color: #38bdf8;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
}

/* ==========================================================================
   2-COLUMN LAYOUT WITH RIGHT SIDEBAR
   ========================================================================== */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .layout-with-sidebar {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

.sidebar-sticky {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.sidebar-widget {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

.section-light .sidebar-widget {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

.sidebar-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
  margin-bottom: 1.25rem;
}

.section-light .sidebar-widget-header {
  border-bottom: 1px solid #f1f5f9;
}

.sidebar-widget-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-light .sidebar-widget-title {
  color: #0f172a;
}

/* Quick Tools List Widget */
.sidebar-tool-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  margin-bottom: 0.65rem;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.25s ease;
}

.section-light .sidebar-tool-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.sidebar-tool-item:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateX(4px);
}

.section-light .sidebar-tool-item:hover {
  background: #f0fdf4;
  border-color: #86efac;
}

.sidebar-tool-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-tool-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
}

.section-light .sidebar-tool-name {
  color: #1e293b;
}

.sidebar-tool-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 99px;
}

/* Sidebar Recent Posts */
.sidebar-post-item {
  display: flex;
  gap: 0.85rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-decoration: none;
  align-items: center;
}

.section-light .sidebar-post-item {
  border-bottom: 1px solid #f1f5f9;
}

.sidebar-post-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.sidebar-post-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(30, 41, 59, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.section-light .sidebar-post-icon {
  background: #e2e8f0;
}

.sidebar-post-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: #e2e8f0;
  line-height: 1.4;
  transition: color 0.2s;
}

.section-light .sidebar-post-title {
  color: #1e293b;
}

.sidebar-post-item:hover .sidebar-post-title {
  color: var(--primary);
}

.sidebar-post-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 0.2rem;
}

/* ==========================================================================
   4-Step Workflow Styles (Quy Trình Vận Hành)
   ========================================================================== */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  position: relative;
}

@media (max-width: 1024px) {
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .workflow-grid {
    grid-template-columns: 1fr;
  }
}

.workflow-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-xl);
  padding: 2.2rem 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.workflow-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #38bdf8, #2563eb);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.workflow-card:hover {
  transform: translateY(-8px);
  border-color: #93c5fd;
  box-shadow: 0 20px 40px rgba(2, 132, 199, 0.12);
}

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

.workflow-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.workflow-step-badge {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 800;
  color: #0284c7;
  background: #e0f2fe;
  padding: 0.35rem 0.85rem;
  border-radius: 99px;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.workflow-time-pill {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: #64748b;
  background: #f1f5f9;
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
}

.workflow-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.08);
}

.workflow-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.workflow-desc {
  font-size: 0.92rem;
  color: #475569;
  line-height: 1.65;
}

/* ==========================================================================
   Pricing Section Styles (Bảng Giá Nạp Points)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
  margin-top: 2rem;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

.pricing-card.featured {
  background: linear-gradient(180deg, #132238 0%, #0d172a 100%);
  border: 2px solid #38bdf8;
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.25);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-6px);
  box-shadow: 0 0 50px rgba(56, 189, 248, 0.4);
}

.pricing-badge-popular {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  color: #ffffff;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.35rem 1.1rem;
  border-radius: 99px;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.5);
  white-space: nowrap;
}

.pricing-tier-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.pricing-tier-sub {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pricing-price-wrap {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pricing-price {
  font-size: 2.6rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.1;
  font-family: var(--font-display);
}

.pricing-price-unit {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-points-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 0.65rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.pricing-card.featured .pricing-points-tag {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.35);
}

.pricing-features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  text-align: left;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.5;
}

.pricing-feature-icon {
  color: #10b981;
  flex-shrink: 0;
  font-weight: 800;
  margin-top: 0.1rem;
}

.pricing-guarantee-bar {
  margin-top: 3.5rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.pricing-guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: #94a3b8;
  font-family: var(--font-mono);
}

.pricing-guarantee-item strong {
  color: #38bdf8;
}

/* ==========================================================================
   FAQ Accordion Styles (Câu Hỏi Thường Gặp)
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 880px;
  margin: 2.5rem auto 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: #93c5fd;
  box-shadow: 0 8px 25px rgba(2, 132, 199, 0.08);
}

.faq-item.active {
  border-color: #0284c7;
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.12);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 1.75rem;
  cursor: pointer;
  user-select: none;
  gap: 1rem;
  background: #ffffff;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: #f8fafc;
}

.faq-question-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.45;
}

.faq-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 800;
  padding: 0.2rem 0.55rem;
  border-radius: 99px;
  background: #e0f2fe;
  color: #0369a1;
  text-transform: uppercase;
  flex-shrink: 0;
}

.faq-toggle-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: #475569;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
  background: #0284c7;
  color: #ffffff;
}

.faq-answer {
  display: none;
  padding: 0 1.75rem 1.6rem 1.75rem;
  font-size: 0.98rem;
  color: #475569;
  line-height: 1.75;
  border-top: 1px dashed #e2e8f0;
  padding-top: 1.25rem;
}

.faq-item.active .faq-answer {
  display: block;
  animation: faqFadeIn 0.3s ease;
}

@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Blog Post Featured Image Thumbnail & Card Styles
   ========================================================================== */
.post-card-thumb {
  position: relative;
  width: 100%;
  height: 210px;
  overflow: hidden;
  background: #0f172a;
}

.post-card-thumb a {
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.post-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-glass:hover .post-card-thumb img,
.card-light:hover .post-card-thumb img {
  transform: scale(1.06);
}

.post-card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: 99px;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   BLOG SINGLE POST & READING EXPERIENCE
   ========================================================================== */
.single-post-page {
  padding-top: 2.5rem;
}

.single-post-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 960px;
}

.single-post-breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
}

.single-post-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.single-post-breadcrumb .breadcrumb-separator {
  color: var(--text-muted);
  opacity: 0.6;
}

.single-post-breadcrumb .breadcrumb-current {
  color: var(--primary);
  max-width: 450px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.single-post-category-badge {
  margin-bottom: 1rem;
}

.single-post-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.8vw, 3rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.single-post-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.5rem 1.25rem;
  border-radius: 99px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Post Content Reading Section */
.single-post-section {
  padding: 4.5rem 0;
}

.single-post-body {
  background: #ffffff;
  padding: 3rem 3.5rem;
  border-radius: var(--radius-xl);
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.06);
  border: 1px solid #e2e8f0;
  color: #334155;
  font-size: 1.1rem;
  line-height: 1.85;
}

.single-post-featured-media {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
}

.single-post-footer {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.single-post-category-info {
  font-size: 0.9rem;
  color: #64748b;
}

.single-post-bottom-cta {
  padding: 5rem 1.5rem;
  text-align: center;
}

/* Entry Content Typography */
.entry-content {
  font-family: var(--font-body);
  color: #334155;
  font-size: 1.1rem;
  line-height: 1.85;
  word-break: break-word;
  overflow-wrap: break-word;
}

.entry-content p {
  color: #334155;
  margin-bottom: 1.5rem;
  line-height: 1.85;
}

.entry-content h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: #0f172a;
  margin: 2.5rem 0 1rem;
  line-height: 1.35;
  border-bottom: 2px solid #f1f5f9;
  padding-bottom: 0.5rem;
}

.entry-content h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: #1e293b;
  margin: 2rem 0 0.85rem;
  line-height: 1.4;
}

.entry-content h4 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 700;
  color: #334155;
  margin: 1.5rem 0 0.5rem;
}

.entry-content ul,
.entry-content ol {
  margin: 1.25rem 0 1.75rem 1.75rem;
  color: #334155;
}

.entry-content li {
  margin-bottom: 0.65rem;
  line-height: 1.75;
}

.entry-content blockquote {
  border-left: 4px solid var(--primary);
  background: #f8fafc;
  padding: 1.25rem 1.75rem;
  margin: 2rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: #475569;
}

.entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  margin: 2rem auto;
  display: block;
}

.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

.entry-content table th,
.entry-content table td {
  padding: 0.75rem 1rem;
  border: 1px solid #e2e8f0;
}

/* In-Post High-Converting Contextual CTA Banner */
.inpost-cta-banner {
  margin: 3rem 0;
  padding: 2.2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #090d16 0%, #111a2e 50%, #0d1527 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 16px 40px rgba(2, 132, 199, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  font-style: normal !important;
}

.inpost-cta-banner * {
  font-style: normal !important;
}

.inpost-cta-banner::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.inpost-cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.28);
  padding: 0.3rem 0.75rem;
  border-radius: 99px;
  margin-bottom: 0.85rem;
  text-transform: uppercase;
}

.inpost-cta-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff !important;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.inpost-cta-desc {
  font-size: 0.98rem;
  color: #cbd5e1 !important;
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.inpost-cta-action {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.inpost-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  text-decoration: none !important;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.4);
  transition: all 0.3s ease;
}

.inpost-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(2, 132, 199, 0.6);
  color: #ffffff !important;
}

.inpost-cta-trust {
  font-size: 0.82rem;
  color: #94a3b8;
  font-family: var(--font-mono);
}

/* ==========================================================================
   RESPONSIVE TUNING FOR BLOG & MOBILE READING (MAX-WIDTH 1024px & 768px)
   ========================================================================== */
@media (max-width: 1024px) {
  .single-post-body {
    padding: 2.25rem 2rem;
  }
}

@media (max-width: 768px) {
  .single-post-page {
    padding-top: 1.5rem;
  }

  .single-post-header {
    margin-bottom: 1.75rem;
    padding: 0 0.5rem;
  }

  .single-post-breadcrumb {
    font-size: 0.78rem;
    margin-bottom: 0.85rem;
    line-height: 1.5;
  }

  .single-post-breadcrumb .breadcrumb-current {
    max-width: 100%;
    white-space: normal;
  }

  .single-post-title {
    font-size: 1.55rem;
    line-height: 1.32;
    margin-bottom: 1.15rem;
  }

  .single-post-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.35rem 0.6rem;
    padding: 0.45rem 0.85rem;
    border-radius: 16px;
    font-size: 0.78rem;
    line-height: 1.4;
  }

  /* Expand article container to use ~94-96% of mobile screen width */
  .single-post-section {
    padding: 1.25rem 0 2.5rem 0;
  }

  .single-post-container {
    padding: 0 0.5rem; /* Only 8px padding each side */
  }

  .single-post-body {
    padding: 1.35rem 1rem; /* 16px inner padding - ample width for content */
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    font-size: 1.05rem;
    line-height: 1.78;
  }

  .single-post-featured-media {
    margin-bottom: 1.5rem;
    border-radius: 12px;
  }

  .entry-content {
    font-size: 1.05rem;
    line-height: 1.78;
  }

  .entry-content p {
    font-size: 1.05rem;
    line-height: 1.78;
    margin-bottom: 1.25rem;
  }

  .entry-content h2 {
    font-size: 1.35rem;
    line-height: 1.35;
    margin: 2rem 0 0.75rem;
    padding-bottom: 0.4rem;
  }

  .entry-content h3 {
    font-size: 1.18rem;
    line-height: 1.4;
    margin: 1.6rem 0 0.6rem;
  }

  .entry-content h4 {
    font-size: 1.08rem;
    line-height: 1.4;
    margin: 1.25rem 0 0.5rem;
  }

  .entry-content ul,
  .entry-content ol {
    margin: 1rem 0 1.25rem 1.2rem;
    padding-left: 0;
  }

  .entry-content li {
    margin-bottom: 0.5rem;
    line-height: 1.65;
  }

  .entry-content blockquote {
    padding: 0.85rem 1rem;
    margin: 1.35rem 0;
    font-size: 0.95rem;
    line-height: 1.65;
  }

  .entry-content img {
    margin: 1.25rem auto;
    border-radius: 10px;
  }

  .entry-content table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    font-size: 0.88rem;
  }

  /* In-post CTA Mobile Responsive Perfection */
  .inpost-cta-banner {
    margin: 2rem 0;
    padding: 1.35rem 1rem; /* Compact padding */
    border-radius: 14px;
    box-shadow: 0 8px 24px rgba(2, 132, 199, 0.15);
  }

  .inpost-cta-badge {
    font-size: 0.68rem;
    padding: 0.25rem 0.6rem;
    margin-bottom: 0.6rem;
    white-space: normal;
    text-align: center;
    line-height: 1.35;
    display: table;
  }

  .inpost-cta-title {
    font-size: 1.18rem !important;
    line-height: 1.35;
    margin-bottom: 0.6rem;
  }

  .inpost-cta-desc {
    font-size: 0.92rem !important;
    line-height: 1.6;
    margin-bottom: 1.15rem;
  }

  .inpost-cta-action {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .inpost-cta-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.85rem 1rem;
    font-size: 0.92rem;
    border-radius: 10px;
  }

  .inpost-cta-trust {
    text-align: center;
    font-size: 0.75rem;
    line-height: 1.5;
  }

  /* Sidebar widgets on mobile */
  .sidebar-sticky {
    margin-top: 1.5rem;
    gap: 1.25rem;
  }

  .sidebar-widget {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-lg);
  }

  .single-post-bottom-cta {
    padding: 3rem 1rem;
  }

  .single-post-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .single-post-footer .btn {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .single-post-container {
    padding: 0 0.35rem; /* 6px padding on tiny screens to maximize content width */
  }

  .single-post-body {
    padding: 1.15rem 0.85rem;
    font-size: 1.02rem;
    border-radius: 14px;
  }

  .inpost-cta-banner {
    padding: 1.15rem 0.85rem;
  }
}

/* ==========================================================================
   GEO DIRECT ANSWER CARD (TOP 0 GOOGLE GEMINI AI OVERVIEW)
   ========================================================================== */
.geo-direct-answer-card {
  background: linear-gradient(135deg, #f0fdf4 0%, #f8fafc 100%);
  border: 1px solid #86efac;
  border-left: 5px solid #16a34a;
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.65rem;
  margin-bottom: 2.5rem;
  box-shadow: 0 4px 18px rgba(22, 163, 74, 0.08);
}

.geo-direct-answer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.geo-direct-answer-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: #15803d;
  background: #dcfce7;
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
  border: 1px solid #bbf7d0;
  letter-spacing: 0.02em;
}

.geo-direct-answer-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #64748b;
  font-weight: 600;
}

.geo-direct-answer-text {
  font-size: 1.05rem;
  color: #1e293b;
  line-height: 1.7;
}

.geo-direct-answer-text strong {
  color: #0f172a;
  font-weight: 800;
}

@media (max-width: 768px) {
  .geo-direct-answer-card {
    padding: 1.15rem 1rem;
    margin-bottom: 1.75rem;
  }
  .geo-direct-answer-text {
    font-size: 0.98rem;
    line-height: 1.65;
  }
}

/* ==========================================================================
   Homepage Split Hero Slider (Nền Trắng Sọc Ô Vuông Mờ Mờ)
   ========================================================================== */
.hero-slider-section {
  background-color: #ffffff;
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  position: relative;
  padding: 3.5rem 0 6.5rem;
  color: #0f172a;
  overflow: visible;
}

.hero-grid-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-slider-section .container {
  position: relative;
  z-index: 2;
}

.hero-split-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: start;
  margin-bottom: 3.5rem;
}

@media (max-width: 1024px) {
  .hero-split-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* Left: Slider Image Mockup Window */
.hero-slider-window {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.12), 0 0 35px rgba(56, 189, 248, 0.12);
  position: relative;
}

.hero-slider-window-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.85rem 1.25rem;
}

.hero-slider-window-dots {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-slider-window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.hero-slider-viewport {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #0f172a;
}

.hero-slide-img-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1.02);
}

.hero-slide-img-item.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.hero-slide-img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* Slider Controls */
.hero-slider-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #cbd5e1;
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: all 0.25s ease;
  z-index: 10;
}

.hero-slider-nav-btn:hover {
  background: #0284c7;
  color: #ffffff;
  border-color: #0284c7;
  transform: translateY(-50%) scale(1.08);
}

.hero-slider-nav-btn.prev {
  left: 1rem;
}

.hero-slider-nav-btn.next {
  right: 1rem;
}

.hero-slider-dots-bar {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 10;
  background: rgba(15, 23, 42, 0.7);
  padding: 0.35rem 0.85rem;
  border-radius: 99px;
  backdrop-filter: blur(8px);
}

.hero-slider-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-slider-dot.active {
  width: 26px;
  border-radius: 99px;
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
}

/* Right: Content Section */
.hero-tabs-selector {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero-tab-pill-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #475569;
  padding: 0.5rem 1.05rem;
  border-radius: 99px;
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  user-select: none;
}

.hero-tab-pill-btn:hover {
  background: #e0f2fe;
  color: #0369a1;
  border-color: #bae6fd;
}

.hero-tab-pill-btn.active {
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.35);
}

.hero-content-slider-wrapper {
  position: relative;
}

.hero-content-slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1), transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.45s;
}

.hero-content-slide-item.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.hero-content-slide-item .badge-pill {
  margin-bottom: 1.15rem;
  display: inline-flex;
}

.hero-content-slide-title {
  font-size: clamp(1.85rem, 3.2vw, 2.7rem);
  font-weight: 900;
  line-height: 1.25;
  color: #0f172a;
  margin-bottom: 1.15rem;
}

.hero-content-slide-desc {
  font-size: 1.05rem;
  color: #475569;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.hero-content-features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.hero-content-feature-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: #1e293b;
  font-weight: 600;
}

.hero-content-feature-item span.icon-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #dcfce7;
  color: #15803d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}

.hero-content-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Overlapping Window Section (Cửa Sổ Ở Dưới Đè Lên Khung Này) */
.hero-overlapping-container {
  position: relative;
  z-index: 20;
  margin-top: 2.5rem;
  margin-bottom: -5.5rem;
}

.hero-overlapping-container .hero-preview {
  margin-top: 0;
}

.hero-overlapping-container .card-glass {
  border-radius: var(--radius-2xl);
  box-shadow: 0 35px 85px -15px rgba(0, 0, 0, 0.5), 0 0 50px rgba(56, 189, 248, 0.2);
  border: 1px solid var(--border-glow);
}

@media (max-width: 768px) {
  .hero-overlapping-container {
    margin-top: 1.5rem;
    margin-bottom: -3.5rem;
  }
}