/* Premium modern theme */
:root {
  /* Premium color scheme */
  --bg: #f9fafb;
  --bg-soft: #ffffff;
  --panel: #ffffff;
  --elev: #ffffff;
  --text: #0f172a;
  --text-dark: #020617;
  --muted: #64748b; 
  --muted-light: #cbd5e1;
  --primary: #0f172a;
  --primary-light: #1e293b;
  --primary-dark: #020617;
  --accent: #4f46e5; 
  --accent-light: #818cf8;
  --stroke: rgba(15,23,42,.08);
  --stroke-strong: rgba(15,23,42,.12);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4f46e5, #7c3aed);
  --gradient-subtle: linear-gradient(135deg, rgba(15,23,42,0.03), rgba(15,23,42,0.06));
  --gradient-glow: linear-gradient(135deg, rgba(79,70,229,0.3), rgba(124,58,237,0.3));
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15,23,42,0.05);
  --shadow-md: 0 4px 6px -1px rgba(15,23,42,0.1), 0 2px 4px -2px rgba(15,23,42,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(15,23,42,0.1), 0 4px 6px -4px rgba(15,23,42,0.1);
  --shadow-glow: 0 0 20px rgba(79,70,229,0.2);
  
  /* Spacing system */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Animation */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}
* { box-sizing: border-box; }
html, body { height: 100%; scroll-behavior: smooth; }
html { background: transparent !important; }
body.theme-aesthetic {
  margin: 0;
  font-family: 'Inter', 'SF Pro Display', system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

/* Subtle grain texture overlay */
.theme-aesthetic:before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.4;
}

/* Navbar */
.nav-wrap {
  position: sticky; top: 0; 
  backdrop-filter: blur(12px);
  background: rgba(249, 250, 251, 0.8);
  border-bottom: 1px solid var(--stroke);
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 48px; 
  z-index: 100;
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.mobile-menu-btn:hover {
  background: var(--stroke);
}
.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}
.nav-wrap .brand { 
  color: var(--text-dark); 
  text-decoration: none; 
  font-weight: 700; 
  letter-spacing: -0.01em;
  font-size: 1.25rem;
  display: inline-flex; 
  align-items: center; 
  gap: 12px;
}
.brand-logo { 
  height: 40px; 
  width: auto; 
  display: block; 
  border-radius: var(--radius-md); 
  background: transparent; 
  filter: drop-shadow(0 1px 3px rgba(15,23,42,0.1));
}
.sr-only { 
  position: absolute; 
  width: 1px; 
  height: 1px; 
  padding: 0; 
  margin: -1px; 
  overflow: hidden; 
  clip: rect(0,0,0,0); 
  white-space: nowrap; 
  border: 0; 
}
.nav-wrap nav ul { 
  list-style: none; 
  display: flex; 
  gap: 32px; 
  margin: 0; 
  padding: 0; 
}
.nav-wrap nav a { 
  color: var(--muted); 
  text-decoration: none; 
  transition: all var(--transition-fast); 
  position: relative; 
  padding: 6px 2px; 
  font-weight: 500;
  font-size: 0.9375rem;
}
.nav-wrap nav a:hover { 
  color: var(--text); 
}
.nav-wrap .nav-actions { 
  display: flex; 
  gap: 12px; 
  align-items: center;
}
.nav-wrap nav a.active { 
  color: var(--text-dark); 
}
.nav-wrap nav a.active:after { 
  content: ""; 
  position: absolute; 
  left: 0; 
  right: 0; 
  bottom: -4px; 
  height: 2px; 
  background: var(--accent); 
  border-radius: var(--radius-sm);
}

/* Buttons */
.btn { 
  display: inline-block; 
  padding: 12px 24px; 
  border-radius: var(--radius-lg); 
  text-decoration: none; 
  transition: all var(--transition-normal);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  line-height: 1.4;
  border: none;
  cursor: pointer;
  min-height: 44px; /* Touch target size */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.btn.primary { 
  background: var(--gradient-primary); 
  color: #ffffff; 
  box-shadow: var(--shadow-md);
}
.btn.primary:hover { 
  transform: translateY(-2px); 
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.btn.ghost { 
  color: var(--text); 
  border: 1px solid var(--stroke-strong); 
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(4px);
}
.btn.ghost:hover { 
  border-color: var(--accent-light);
  color: var(--accent);
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.container { 
  width: 100%; 
  max-width: 1440px; 
  margin: 0 auto; 
  padding: 0 var(--space-lg); 
}
/* Section divider */
.section-divider { 
  width: 90%; 
  height: 1px; 
  margin: 40px auto; 
  background: linear-gradient(90deg, transparent, var(--stroke-strong), transparent);
}

/* Hero */
.hero { 
  display: grid; 
  grid-template-columns: 1.3fr 1fr; 
  gap: 48px; 
  align-items: center; 
  padding: 120px 0 80px; 
  max-width: 1200px;
  margin: 0 auto;
}
.hero .copy h1 { 
  font-weight: 800; 
  letter-spacing: -0.03em; 
  font-size: clamp(42px, 7vw, 72px); 
  margin: 0 0 24px; 
  color: var(--text-dark); 
  line-height: 1.1;
}
.hero .copy p { 
  color: var(--muted); 
  font-size: 1.25rem;
  line-height: 1.6; 
  margin-bottom: var(--space-xl);
  max-width: 32rem;
}
.hero .cta { 
  margin-top: var(--space-lg); 
  display: flex; 
  gap: var(--space-md); 
}
.hero .visual { 
  position: relative; 
  height: 460px; 
  display: grid; 
  place-items: center; 
}
.hero .orb { 
  width: 320px; 
  height: 320px; 
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  background: var(--gradient-glow);
  box-shadow: var(--shadow-lg), 0 30px 60px rgba(79,70,229,0.15), inset 0 0 80px rgba(255,255,255,0.8);
  will-change: border-radius, transform;
  transition: border-radius 6s ease-in-out, transform 6s ease-in-out;
  animation: float 12s ease-in-out infinite alternate;
}

@keyframes float {
  0% {
    transform: translateY(0) rotate(0deg);
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  }
  50% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  100% {
    transform: translateY(-20px) rotate(5deg);
    border-radius: 35% 65% 60% 40% / 50% 60% 40% 50%;
  }
}
.hero .rings { 
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 480px;
  height: 480px;
  border-radius: 50%;
  border: 1px solid rgba(79,70,229,0.1);
  display: block;
  animation: pulse 4s infinite ease-in-out;
}

/* Kill heavy visuals on low-power devices */
.low-power .hero .visual { height: 220px; }
.low-power .hero .orb,
.low-power .hero .rings,
.low-power .premium-badge,
.low-power .premium-indicator .dot:before,
.low-power .svc-shine { display: none !important; animation: none !important; }
.low-power .glass-effect { backdrop-filter: none !important; background: rgba(255,255,255,0.9) !important; }
.low-power .svc-thumb { box-shadow: var(--shadow-sm); }
.low-power .reveal-up { opacity: 1 !important; transform: none !important; transition: none !important; }
.low-power .tab-panel { animation: none !important; }

/* Defer offscreen rendering for panels below the fold */
section.panel { content-visibility: auto; contain-intrinsic-size: 1px 1000px; }

.hero .rings:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(79,70,229,0.15);
  animation: pulse 4s infinite ease-in-out 0.5s;
}

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 0.8; }
  100% { opacity: 0.4; }
}
/* Stats band */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 10px 0 30px; }
.stat { background: transparent; border: 1px solid var(--stroke); border-radius: 12px; padding: 16px; text-align: center; }
.stat .value { font-size: 28px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.stat .label { color: var(--muted); margin-top: 6px; }

/* Panels */
.panel { 
  position: relative;
  background: transparent; 
  border-radius: 24px; 
  padding: 100px 40px 80px; 
  margin: 80px 0;
  overflow: hidden;
}
.panel:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79,70,229,0.3), transparent);
  z-index: 1;
}
.glass-effect {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.6);
  /* Reduce heavy blur on low-power devices */
  backdrop-filter: blur(8px);
  z-index: -1;
  border-radius: 24px;
}
.premium-badge {
  position: absolute;
  top: 20px;
  right: 24px;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 30px;
  box-shadow: var(--shadow-md);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  animation: badgePulse 3s infinite alternate;
}
.premium-indicator {
  position: absolute;
  top: 20px;
  left: 24px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}
.premium-indicator .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  position: relative;
}
.premium-indicator .dot:before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: rgba(79,70,229,0.3);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}
@keyframes badgePulse {
  0% { box-shadow: var(--shadow-md); }
  100% { box-shadow: var(--shadow-md), 0 0 15px rgba(79,70,229,0.6); }
}
.section-anchor {
  position: absolute;
  top: -100px;
  left: 0;
  width: 1px;
  height: 1px;
  visibility: hidden;
}
.section-lead {
  text-align: center;
  font-size: 1.25rem;
  color: var(--muted);
  max-width: 600px;
  margin: -0.5rem auto 2rem;
}
.panel h2 { 
  font-weight: 800; 
  letter-spacing: -0.025em; 
  font-size: 2.5rem;
  margin-top: 0;
  margin-bottom: 1rem;
  position: relative;
}
.panel h2:after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
  margin-top: 16px;
}
/* Auth forms */
.auth-form { margin-top: 24px; }
.form-grid { display: grid; gap: 16px; }
.form-field { display: grid; gap: 8px; }
.form-label { font-weight: 600; color: var(--text-dark); }
.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--stroke-strong);
  background: #fff;
  font: inherit;
  color: var(--text);
}
.auth-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }

/* Dashboard plan card utilities */
.plan-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow-sm);
}
.badge-soft {
  position: absolute;
  top: 18px;
  right: 18px;
  border: 1px solid var(--stroke);
  border-radius: 9999px;
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--muted);
  background: #fff;
}
.label-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.label-inline .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: inline-block; }
.plan-title { margin: 4px 0 8px; }
.plan-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.plan-pill { display: inline-block; padding: 8px 14px; border-radius: 9999px; border: 1px solid var(--stroke); background: rgba(15,23,42,0.04); font-weight: 700; color: var(--text-dark); }
.plan-meta { color: var(--muted); font-size: 0.95rem; }
.plan-expiry { margin: 10px 0 0; color: var(--muted); }
.chip-group { list-style: none; margin: 14px 0 0; padding: 0; display: flex; gap: 10px; flex-wrap: wrap; }
.chip { padding: 8px 12px; border: 1px solid var(--stroke); border-radius: 12px; background: rgba(15,23,42,0.02); color: var(--text); font-size: 0.9rem; }
.form-actions { display: flex; gap: 12px; align-items: center; margin-top: 16px; }
.form-hint { color: var(--muted); font-size: 0.875rem; margin-top: 12px; }

/* Table */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--stroke); }
.table thead th { color: var(--muted); font-weight: 600; }
.grid-3 .cards { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 24px; 
}
.grid-3 > h2 { 
  text-align: center; 
}
.grid-3 > h2:after {
  margin-left: auto;
  margin-right: auto;
}
/* Tabs */
.services h2 { 
  text-align: center; 
}
.services h2:after {
  margin-left: auto;
  margin-right: auto;
}
.tabs { 
  margin-top: 48px; 
  position: relative;
}
.tab-nav { 
  display: flex; 
  justify-content: center; 
  gap: 16px; 
  padding-bottom: 24px; 
  position: relative;
}
.tab-nav:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: var(--stroke-strong);
  border-radius: 1px;
}
.tab-btn { 
  appearance: none; 
  background: transparent; 
  color: var(--muted); 
  border: none;
  padding: 10px 20px; 
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem; 
  cursor: pointer; 
  transition: all var(--transition-normal);
  position: relative;
  opacity: 0.7;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tab-icon {
  font-size: 1.25rem;
  display: inline-block;
}
.tab-btn:before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  border-radius: var(--radius-lg);
  background: var(--gradient-subtle);
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.tab-btn:hover { 
  color: var(--text-dark); 
  opacity: 0.9;
}
.tab-btn:hover:before {
  opacity: 1;
}
.tab-btn.active { 
  color: var(--accent); 
  opacity: 1;
}
.tab-btn.active:before {
  background: var(--gradient-glow);
  opacity: 0.15;
}
.tab-btn.active:after {
  content: "";
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}
.tab-panels { 
  padding: 48px 0 24px; 
}
.tab-panel { 
  display: block; 
  animation: fadeIn 0.5s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.tab-panel[hidden] { 
  display: none; 
}
.feature-list { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 10px; }
.feature-list li { padding: 10px 12px; border: 1px solid var(--stroke); border-radius: 12px; }
.svc-list { list-style: none; padding: 0; margin: 12px 0; width: 100%; columns: 2; column-gap: 30px; }
.svc-list li { padding: 8px 0; border-bottom: 1px solid var(--stroke); break-inside: avoid; }
.svc-list li:last-child { border-bottom: 0; }
/* New services grid with image-like icons */
.tab-header {
  text-align: center;
  margin-bottom: 40px;
}

.tab-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.tab-desc {
  color: var(--muted);
  font-size: 1.0625rem;
  margin: 0;
}

.svc-grid { 
  display: grid; 
  grid-template-columns: repeat(6, minmax(0,1fr)); 
  gap: 40px 32px; 
  padding-top: 24px;
  perspective: 1000px;
}
.svc-item { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  text-align: center; 
  gap: 16px;
  transition: all var(--transition-normal);
}
.svc-item:hover {
  transform: translateY(-8px);
}
.svc-item:hover .svc-thumb {
  transform: translateZ(10px);
  box-shadow: var(--shadow-lg), 0 15px 35px rgba(79,70,229,0.2);
}
.svc-thumb { 
  width: 120px; 
  height: 120px; 
  border-radius: var(--radius-2xl); 
  display: grid; 
  place-items: center; 
  overflow: hidden; 
  box-shadow: var(--shadow-md), 0 10px 25px rgba(15,23,42,0.1);
  transition: all var(--transition-normal);
  transform: translateZ(0);
  position: relative;
}
.svc-shine {
  position: absolute;
  top: -50%;
  left: -50%;
  right: -50%;
  bottom: -50%;
  background: linear-gradient(
    45deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,0.03) 30%,
    rgba(255,255,255,0.2) 50%,
    rgba(255,255,255,0.03) 70%,
    rgba(255,255,255,0) 100%
  );
  transform: rotate(25deg) translate3d(-200%, -100%, 0);
  animation: shine 9s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine {
  0% {
    transform: rotate(25deg) translate3d(-200%, -100%, 0);
  }
  20%, 100% {
    transform: rotate(25deg) translate3d(200%, 100%, 0);
  }
}
.svc-thumb img { 
  width: 100%; 
  height: 100%; 
  object-fit: cover; 
}
.svc-thumb .abbr { 
  font-weight: 800; 
  color: #fff; 
  font-size: 32px; 
  line-height: 1;
}
.svc-label { 
  font-weight: 600; 
  color: var(--text-dark); 
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
  position: relative;
}
.svc-item:hover .svc-label {
  color: var(--accent);
}
.svc-cards { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 20px; }
.svc-card { background: transparent; border: 1px solid var(--stroke); border-radius: 14px; padding: 18px; text-align: center; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.svc-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.08); border-color: var(--stroke-strong); }
.svc-icon { width: 64px; height: 64px; margin: 0 auto 10px; border-radius: 16px; background: rgba(0,0,0,.04); display: grid; place-items: center; }
.svc-icon span { font-weight: 800; color: var(--text); }
.svc-name { font-weight: 600; color: var(--text); }
.card { background: transparent; border: 1px solid var(--stroke); border-radius: 14px; padding: 18px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0,0,0,.08); border-color: var(--stroke-strong); }
.card .icon { width: 42px; height: 42px; border-radius: 8px; margin-bottom: 10px; background: linear-gradient(135deg, #efefef, #e8e8e8); box-shadow: inset 0 0 18px rgba(0,0,0,.04); }
.card .icon.cpu,.card .icon.cloud,.card .icon.shield { mask: none; -webkit-mask: none; }

/* Steps */
.steps ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 48px 1fr; gap: 12px; align-items: start; background: transparent; border: 1px solid var(--stroke); border-radius: 12px; padding: 14px; }
.steps .step { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: #ffffff; font-weight: 700; background: var(--primary); }

/* Pricing */
.pricing {
  position: relative;
}

.pricing-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 32px 0 48px;
  padding: 6px;
  background: rgba(15,23,42,0.04);
  border-radius: 40px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
  pointer-events: auto;
}

.pricing-tab {
  appearance: none;
  border: none;
  background: none;
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  pointer-events: auto;
}

.pricing-tab.active {
  background: white;
  color: var(--text-dark);
  box-shadow: var(--shadow-md);
}

.save-badge {
  font-size: 0.75rem;
  background: #10b981;
  color: white;
  padding: 2px 6px;
  border-radius: 20px;
  margin-left: 6px;
  vertical-align: 1px;
}

.pricing .tiers { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 24px;
  padding: 0 32px;
}

.tier { 
  background: white; 
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
  z-index: 1;
  overflow: hidden;
}

.tier:hover {
  transform: translateY(-8px);
}

.tier::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-subtle);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  z-index: -1;
}

.tier:nth-child(2)::before {
  background: var(--gradient-glow);
  box-shadow: var(--shadow-glow);
  border-color: rgba(79,70,229,0.2);
}

.popular-badge {
  position: absolute;
  top: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
}

.tier-content {
  padding: 40px 24px 32px;
}

.tier .price { 
  font-size: 36px; 
  font-weight: 800; 
  margin: 16px 0 24px; 
  color: var(--text-dark);
  letter-spacing: -0.03em;
}

.tier .period {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--muted);
}

.tier ul { 
  list-style: none; 
  padding: 0; 
  margin: 0 0 32px;
  text-align: left;
}

.tier li { 
  margin: 12px 0;
  display: flex;
  align-items: center;
  font-size: 0.9375rem;
}

.checkmark {
  color: var(--accent);
  font-weight: bold;
  margin-right: 8px;
}

.tier .btn {
  width: 100%;
  text-align: center;
}

/* Pricing plan filter */
#pricing[data-active-plan="premium"] .tiers .tier[data-plan="pro-exclusive"] { display: none; }
#pricing[data-active-plan="pro-exclusive"] .tiers .tier[data-plan="premium"] { display: none; }

/* Footer */
.site-footer { text-align: center; color: var(--muted); padding: 40px 0 70px; border-top: 0; }

/* Alternating subtle backgrounds per section to avoid monotony */
section.panel:nth-of-type(odd) { 
  background: linear-gradient(to bottom, rgba(15,23,42,0.01), rgba(15,23,42,0.04));
}
section.panel:nth-of-type(even) { 
  background: linear-gradient(to bottom, rgba(79,70,229,0.02), rgba(79,70,229,0.05)); 
}
section.panel:nth-of-type(3n) {
  background: linear-gradient(to bottom right, rgba(255,255,255,0.8), rgba(255,255,255,0.95));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), inset 0 -1px 0 rgba(255,255,255,0.9);
}

/* Responsive */
@media (max-width: 900px) {
  .nav-wrap { padding: 16px 24px; }
  .hero { grid-template-columns: 1fr; padding: 80px 0 60px; }
  .hero .copy { text-align: center; }
  .hero .copy p { margin-left: auto; margin-right: auto; }
  .hero .cta { justify-content: center; }
  .panel { padding: 60px 24px; }
  .grid-3 .cards, .pricing .tiers { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-wrap {
    padding: 12px 20px;
  }
  
  /* Hide desktop nav, show mobile menu */
  .nav-wrap nav {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  
  /* Mobile nav overlay */
  .nav-wrap nav.mobile-open {
    display: block;
    position: fixed;
    top: 69px;
    left: 0;
    right: 0;
    background: rgba(249, 250, 251, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--stroke);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
  }
  
  .nav-wrap nav.mobile-open ul {
    flex-direction: column;
    padding: 20px;
    gap: 20px;
  }
  
  .nav-wrap nav.mobile-open a {
    font-size: 1.125rem;
    padding: 12px 0;
    display: block;
  }
  
  .nav-actions {
    gap: 8px;
  }
  
  .nav-actions .btn {
    padding: 8px 16px;
    font-size: 0.875rem;
  }
  
  /* Hero responsive */
  .hero {
    gap: 32px;
    padding: 60px 0 40px;
  }
  
  .hero .copy h1 {
    font-size: clamp(32px, 8vw, 48px);
    margin-bottom: 16px;
  }
  
  .hero .copy p {
    font-size: 1.125rem;
    margin-bottom: 24px;
  }
  
  .hero .cta {
    flex-direction: column;
    gap: 12px;
    max-width: 280px;
    margin: 24px auto 0;
  }
  
  .hero .visual {
    height: 300px;
    order: -1;
  }
  
  .hero .orb {
    width: 240px;
    height: 240px;
  }
  
  .hero .rings {
    width: 320px;
    height: 320px;
  }
  
  .hero .rings:before {
    width: 260px;
    height: 260px;
  }
  
  /* Panel adjustments */
  .panel {
    margin: 60px 0;
    padding: 40px 20px;
  }
  
  .panel h2 {
    font-size: 2rem;
    text-align: center;
  }
  
  .section-lead {
    font-size: 1.125rem;
  }
  
  /* Services grid */
  .svc-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  /* Tabs */
  .tab-nav {
    flex-direction: column;
    gap: 8px;
  }
  
  .pricing-tabs {
    flex-direction: column;
    gap: 8px;
    max-width: 200px;
    margin: 0 auto 40px;
  }
  
  /* Steps */
  .steps ol {
    gap: 32px;
  }
  
  .steps ol li {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  
  .step {
    margin: 0 auto 16px;
  }
  
  /* Testimonials */
  .testimonial-slider {
    padding: 0 10px;
  }
  
  .testimonial {
    padding: 24px 20px;
  }
  
  .testimonial-quote {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .testimonial-author h4 {
    font-size: 1rem;
  }
  
  .testimonial-author p {
    font-size: 0.875rem;
  }
  
  /* Pricing */
  .pricing .tiers {
    gap: 24px;
    padding: 0 10px;
  }
  
  .tier {
    max-width: none;
  }
  
  .tier-content {
    padding: 32px 20px 24px;
  }
}

@media (max-width: 600px) {
  .nav-wrap { 
    padding: 12px 16px; 
  }
  
  .nav-wrap .brand {
    font-size: 1.125rem;
  }
  
  .brand-logo { 
    height: 32px; 
  }
  
  .container {
    padding: 0 16px;
  }
  
  /* Hero mobile */
  .hero {
    padding: 40px 0 30px;
    gap: 24px;
  }
  
  .hero .copy h1 {
    font-size: clamp(28px, 10vw, 42px);
    line-height: 1.2;
  }
  
  .hero .copy p {
    font-size: 1rem;
  }
  
  .hero .visual {
    height: 240px;
  }
  
  .hero .orb {
    width: 180px;
    height: 180px;
  }
  
  .hero .rings {
    width: 240px;
    height: 240px;
  }
  
  .hero .rings:before {
    width: 200px;
    height: 200px;
  }
  
  /* Panels */
  .panel { 
    padding: 40px 16px; 
    border-radius: 0; 
    margin: 40px 0;
  }
  
  .panel h2 { 
    font-size: 1.75rem; 
  }
  
  .section-lead {
    font-size: 1rem;
  }
  
  /* Services */
  .svc-grid { 
    grid-template-columns: repeat(2, 1fr); 
    gap: 16px; 
  }
  
  .svc-item {
    padding: 16px 12px;
  }
  
  .svc-abbr {
    width: 40px;
    height: 40px;
    font-size: 0.875rem;
  }
  
  .svc-name {
    font-size: 0.8125rem;
  }
  
  /* Tabs */
  .tab-btn {
    padding: 12px 16px;
    font-size: 0.875rem;
  }
  
  .pricing-tab {
    padding: 10px 20px;
    font-size: 0.875rem;
  }
  
  /* Steps */
  .steps ol li {
    padding: 20px 16px;
  }
  
  .step {
    width: 40px;
    height: 40px;
    font-size: 1.125rem;
  }
  
  /* Testimonials */
  .testimonial {
    padding: 20px 16px;
    margin: 0 8px;
  }
  
  .testimonial-quote {
    font-size: 0.9375rem;
  }
  
  .testimonial-author {
    gap: 12px;
  }
  
  .testimonial-avatar {
    width: 40px;
    height: 40px;
  }
  
  /* Pricing */
  .tier-content {
    padding: 24px 16px 20px;
  }
  
  .tier .price {
    font-size: 28px;
  }
  
  .tier li {
    font-size: 0.875rem;
  }
  
  /* Footer */
  .site-footer {
    padding: 30px 0 50px;
  }
}

/* Large mobile / small tablet */
@media (min-width: 601px) and (max-width: 768px) {
  .svc-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .pricing .tiers {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
}

/* Touch and mobile improvements */
@media (hover: none) and (pointer: coarse) {
  /* Touch device styles */
  .btn:hover {
    transform: none;
  }
  
  .btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }
  
  .nav-wrap nav a:hover {
    background: var(--stroke);
    border-radius: var(--radius-sm);
  }
  
  .svc-item:hover {
    transform: none;
  }
  
  .svc-item:active {
    transform: scale(0.95);
  }
}

/* Respect reduced motion and low-power devices */
@media (prefers-reduced-motion: reduce) {
  .reveal-up,
  .svc-item,
  .svc-thumb,
  .svc-shine,
  .hero .orb,
  .hero .rings { animation: none !important; transition: none !important; }
}

/* Smooth navbar transition for mobile hide/show */
.nav-wrap {
  transition: transform 0.3s ease-in-out;
}

/* Better form styles for mobile */
.form-group input,
.form-group textarea,
.form-group select {
  min-height: 48px; /* Better touch target */
  font-size: 16px; /* Prevent zoom on iOS */
  padding: 12px 16px;
}

/* Loading states and accessibility */
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Improve tap targets */
.mobile-menu-btn {
  min-width: 44px;
  min-height: 44px;
}

/* Better mobile typography */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero .copy h1 {
    font-size: clamp(24px, 8vw, 36px);
  }
  
  .panel h2 {
    font-size: 1.5rem;
  }
  
  .section-lead {
    font-size: 0.9375rem;
  }
}

/* Landscape phone optimization */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    padding: 30px 0 20px;
  }
  
  .hero .visual {
    height: 200px;
  }
  
  .hero .orb {
    width: 150px;
    height: 150px;
  }
  
  .panel {
    padding: 30px 16px;
  }
}

/* Additional responsive utilities */
.hidden-mobile {
  display: block;
}

.hidden-desktop {
  display: none;
}

@media (max-width: 768px) {
  .hidden-mobile {
    display: none;
  }
  
  .hidden-desktop {
    display: block;
  }
}

/* Tablet landscape */
@media (min-width: 769px) and (max-width: 1024px) {
  .nav-wrap {
    padding: 16px 32px;
  }
  
  .hero {
    gap: 40px;
    padding: 100px 0 70px;
  }
  
  .svc-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .pricing .tiers {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* Reveal animations */
.reveal-up { 
  opacity: 0; 
  transform: translateY(24px); 
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); 
}
.reveal-up.is-inview { 
  opacity: 1; 
  transform: translateY(0); 
}
.stagger > * { 
  --d: 0; 
  transition-delay: calc(var(--d) * 100ms); 
}