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

:root {
  /* Core palette - matched to extension */
  --bg: #080c14;
  --surface: #0f1629;
  --surface-alt: #0b1120;
  --surface-raised: #141d32;
  --border: #1e293b;
  --border-subtle: #172033;

  /* Primary accent - blue (main interactive color) */
  --accent: #3b82f6;
  --accent-strong: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --accent-glow: rgba(59, 130, 246, 0.15);
  --primary: #3b82f6;
  --primary-strong: #2563eb;
  --primary-soft: rgba(59, 130, 246, 0.12);

  /* Text */
  --text-main: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;

  /* Semantic - green for success/confirmation */
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.08);

  /* System */
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 8px 20px rgba(0, 0, 0, 0.3);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.25);
  --focus: 0 0 0 2px var(--accent-soft), 0 0 0 4px rgba(59, 130, 246, 0.1);
  --input-bg: #0c1424;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --nav-height: 82px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 1rem;
  background: var(--bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: none;
}

/* ===== Background Layer ===== */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    /* Dot grid pattern */
    radial-gradient(circle at center, rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    /* Main gradient blobs - blue primary with purple accent */
    radial-gradient(ellipse 80% 60% at 10% 0%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 90% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 70% 40% at 70% 100%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  background-size: 24px 24px, 100% 100%, 100% 100%, 100% 100%, 100% 100%;
  pointer-events: none;
}

/* Floating orb accents */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle 400px at 5% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 70%),
    radial-gradient(circle 300px at 95% 60%, rgba(99, 102, 241, 0.07) 0%, transparent 70%),
    radial-gradient(circle 250px at 50% 90%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  pointer-events: none;
  animation: orb-drift 25s ease-in-out infinite alternate;
}

@keyframes orb-drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(30px, 40px); }
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
.slides::-webkit-scrollbar {
  display: none;
}

/* ===== Navigation ===== */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.98) 0%, rgba(11, 17, 32, 0.98) 100%);
  border-bottom: 1px solid rgba(30, 41, 59, 0.8);
  box-shadow: 0 12px 30px rgba(5, 10, 20, 0.45);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.nav-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-2);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-3);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 4px;
}

.brand__name {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand__tag {
  display: none;
}

.nav-links {
  display: flex;
  gap: var(--space-2);
  flex: 1;
  align-items: center;
  margin-left: var(--space-2);
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.02rem;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.nav-links a:hover {
  color: var(--text-secondary);
  background: rgba(148, 163, 184, 0.06);
}

.nav-links a.is-active {
  color: var(--text-main);
  background: var(--accent-soft);
  border-color: rgba(59, 130, 246, 0.2);
}

.nav-links .nav-link--primary {
  margin-left: auto;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  border-color: var(--primary-strong);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.12),
    0 0 18px rgba(59, 130, 246, 0.2);
}

.nav-links .nav-link--primary:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-strong) 0%, #1d4ed8 100%);
  transform: translateY(-1px);
  box-shadow:
    0 4px 12px rgba(59, 130, 246, 0.32),
    0 0 26px rgba(59, 130, 246, 0.24);
}

/* ===== Page & Slides ===== */
.page {
  position: relative;
  z-index: 1;
}

.slides {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
}

.slide {
  min-width: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  padding: calc(var(--nav-height) + var(--space-5)) var(--space-2) var(--space-5);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
}

.slide__inner {
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
}

/* ===== Hero Section ===== */
.hero {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero__content {
  max-width: 840px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.75rem;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 1px;
}

.hero__content h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2.4rem, 4.5vw, 3.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  margin: 0 0 var(--space-3);
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.hero__panel {
  position: relative;
}

.hero__panel::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -40px;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.hero__panel h2 {
  margin: 0 0 var(--space-1);
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.hero__panel p {
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero--about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-4);
  align-items: start;
  margin-bottom: var(--space-5);
}

/* Attention block within cards */
.attention-block {
  margin-top: var(--space-3);
  padding: var(--space-2);
  background: linear-gradient(135deg, var(--accent-soft) 0%, rgba(99, 102, 241, 0.08) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-md);
}

.attention-title {
  margin: 0 0 var(--space-1);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.attention-block p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.attention-block .button {
  margin-top: var(--space-2);
}

/* Signup notes styling */
.signup-notes {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-subtle);
}

.signup-notes p {
  position: relative;
  padding-left: 16px;
  font-size: 0.85rem;
}

.signup-notes p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.6;
}

.signup-copy h3 {
  margin-bottom: var(--space-2);
}

/* Security list */
.security-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.security-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.security-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  background: var(--success-soft);
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: 50%;
}

.security-list li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  width: 6px;
  height: 3px;
  border-left: 2px solid var(--success);
  border-bottom: 2px solid var(--success);
  transform: rotate(-45deg);
}

/* ===== Cards ===== */
.card {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.8) 0%, rgba(11, 17, 32, 0.9) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow:
    var(--shadow-soft),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
  transition: all 0.25s ease;
  overflow: hidden;
}

/* Subtle inner glow on cards */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card:hover {
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow:
    var(--shadow-soft),
    0 0 30px rgba(59, 130, 246, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transform: translateY(-3px);
}

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

.card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card p + p {
  margin-top: var(--space-1);
}

/* ===== Section Headers ===== */
.section__header {
  position: relative;
  margin-bottom: var(--space-4);
}

.section__header h2 {
  margin: var(--space-1) 0 var(--space-2);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Decorative gradient line after headers */
.section__header::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  margin-top: var(--space-2);
  background: linear-gradient(90deg, var(--accent), var(--accent-strong), transparent);
  border-radius: 2px;
}

/* ===== Feature Grid ===== */
.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

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

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

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

.step {
  position: relative;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-soft);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

/* ===== Signup ===== */
.signup-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  align-items: start;
}

.signup-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.signup-info h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.1rem;
  font-weight: 600;
}

.signup-info p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.checklist li {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.checklist li::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--success-soft);
  border: 1px solid rgba(52, 211, 153, 0.25);
  flex-shrink: 0;
}

/* ===== Form ===== */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: -4px;
}

input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text-main);
  font-size: 0.875rem;
  font-family: inherit;
  outline: none;
  transition: all 0.15s ease;
}

input:focus {
  border-color: var(--primary);
  box-shadow: var(--focus);
  background: var(--surface-alt);
}

input::placeholder {
  color: var(--text-faint);
}

/* ===== Buttons ===== */
button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 23px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 1.02rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.button-primary,
button[type="submit"] {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: #fff;
  border-color: var(--primary-strong);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.1),
    0 0 20px rgba(59, 130, 246, 0.2);
}

.button-primary::before,
button[type="submit"]::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), rgba(37, 99, 235, 0.2));
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: -1;
  filter: blur(8px);
}

.button-primary:hover,
button[type="submit"]:hover {
  background: linear-gradient(135deg, var(--primary-strong) 0%, #1d4ed8 100%);
  transform: translateY(-2px);
  box-shadow:
    0 4px 12px rgba(59, 130, 246, 0.35),
    0 0 30px rgba(59, 130, 246, 0.25);
}

.button-primary:hover::before,
button[type="submit"]:hover::before {
  opacity: 1;
}

.button-secondary {
  background: var(--surface-raised);
  color: var(--text-secondary);
  border-color: var(--border);
}

.button-secondary:hover {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-main);
  border-color: rgba(148, 163, 184, 0.2);
}

.button-link {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
  text-decoration: none;
}

.button-link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ===== Status ===== */
.status {
  font-size: 0.8rem;
  min-height: 1em;
  color: var(--text-faint);
}

.status-ok { color: var(--success); }
.status-error { color: #fca5a5; }

/* ===== Security List ===== */
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.security-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2);
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.6) 0%, rgba(11, 17, 32, 0.8) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(4px);
  transition: all 0.25s ease;
}

.security-item:hover {
  border-color: rgba(59, 130, 246, 0.2);
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.8) 0%, rgba(11, 17, 32, 0.9) 100%);
}

.security-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
  font-size: 0.9rem;
}

.security-item p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===== Footer ===== */
.footer {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer__brand {
  margin: 0;
  font-weight: 600;
  font-size: 0.9rem;
}

.footer__meta {
  margin: 2px 0 0;
  font-size: 0.75rem;
  color: var(--text-faint);
}

.footer__links {
  display: flex;
  gap: var(--space-2);
}

.footer__links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.15s ease;
}

.footer__links a:hover {
  color: var(--text-main);
}

.footer__copy {
  width: 100%;
  margin: var(--space-2) 0 0;
  font-size: 0.75rem;
  color: var(--text-faint);
}

/* ===== Animations ===== */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered card animations */
.features .card,
.steps .card,
.signup-layout .card,
.signup-grid .card,
.grid-2 .card,
.security-grid .security-item,
.features-grid .feature-card,
.stat-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.features .card.is-visible,
.steps .card.is-visible,
.signup-layout .card.is-visible,
.signup-grid .card.is-visible,
.grid-2 .card.is-visible,
.security-grid .security-item.is-visible,
.features-grid .feature-card.is-visible,
.stat-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.features .card:nth-child(1) { transition-delay: 0s; }
.features .card:nth-child(2) { transition-delay: 0.1s; }
.features .card:nth-child(3) { transition-delay: 0.2s; }
.features .card:nth-child(4) { transition-delay: 0.3s; }

.steps .card:nth-child(1) { transition-delay: 0s; }
.steps .card:nth-child(2) { transition-delay: 0.1s; }
.steps .card:nth-child(3) { transition-delay: 0.2s; }

.features-grid .feature-card:nth-child(1) { transition-delay: 0s; }
.features-grid .feature-card:nth-child(2) { transition-delay: 0.08s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.16s; }
.features-grid .feature-card:nth-child(4) { transition-delay: 0.24s; }
.features-grid .feature-card:nth-child(5) { transition-delay: 0.32s; }
.features-grid .feature-card:nth-child(6) { transition-delay: 0.4s; }

.stat-card:nth-child(1) { transition-delay: 0s; }
.stat-card:nth-child(2) { transition-delay: 0.1s; }
.stat-card:nth-child(3) { transition-delay: 0.2s; }
.stat-card:nth-child(4) { transition-delay: 0.3s; }

.signup-grid .card:nth-child(1) { transition-delay: 0s; }
.signup-grid .card:nth-child(2) { transition-delay: 0.1s; }
.signup-grid .card:nth-child(3) { transition-delay: 0.2s; }

.security-grid .security-item:nth-child(1) { transition-delay: 0s; }
.security-grid .security-item:nth-child(2) { transition-delay: 0.1s; }
.security-grid .security-item:nth-child(3) { transition-delay: 0.2s; }
.security-grid .security-item:nth-child(4) { transition-delay: 0.3s; }

/* ===== Feature Icons ===== */
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-soft) 0%, rgba(59, 130, 246, 0.05) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
  font-size: 1.25rem;
  color: var(--accent);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}

.feature-icon--blue {
  background: linear-gradient(135deg, var(--success-soft) 0%, rgba(52, 211, 153, 0.05) 100%);
  border-color: rgba(52, 211, 153, 0.2);
  color: var(--success);
  box-shadow: 0 0 20px rgba(52, 211, 153, 0.12);
}

/* ===== Stats Grid ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.stat-card {
  text-align: center;
  padding: var(--space-3);
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.6) 0%, rgba(11, 17, 32, 0.8) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent) 0%, var(--success) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: var(--space-1);
}

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

/* ===== Feature Grid Enhanced ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.feature-card {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 22, 41, 0.8) 0%, rgba(11, 17, 32, 0.9) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow), 0 0 40px rgba(59, 130, 246, 0.12);
}

.feature-card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===== Hero Enhanced ===== */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--primary-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 999px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.lede-highlight {
  color: var(--accent);
  font-weight: 600;
}

/* ===== Value Props ===== */
.value-list {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.value-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.value-list li::before {
  content: "✓";
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ===== Attention Block Enhanced ===== */
.attention-block {
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: linear-gradient(135deg, var(--accent-soft) 0%, rgba(59, 130, 246, 0.05) 100%);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-md);
}

.attention-title {
  margin: 0 0 var(--space-1);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Signup Notes Enhanced ===== */
.signup-notes p::before {
  background: var(--accent);
}

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: var(--space-5) var(--space-3);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(52, 211, 153, 0.05) 100%);
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
}

.cta-section h2 {
  font-size: 1.75rem;
  margin: 0 0 var(--space-2);
  background: linear-gradient(135deg, var(--text-main) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-section p {
  color: var(--text-secondary);
  margin: 0 0 var(--space-3);
  font-size: 1rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-inner {
    padding: 0 var(--space-2);
  }

  .nav-links {
    gap: var(--space-1);
  }

  .nav-links a {
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  .slide {
    padding: calc(var(--nav-height) + var(--space-3)) var(--space-2) var(--space-3);
  }

  .hero__content h1 {
    font-size: 2rem;
  }

  .features,
  .steps,
  .signup-layout,
  .security-grid,
  .grid-2,
  .signup-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .stat-number {
    font-size: 2rem;
  }

  .hero--about {
    grid-template-columns: 1fr;
  }

  .hero__panel::after {
    display: none;
  }

  .section__header h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .brand__tag {
    display: none;
  }

  .hero__content h1 {
    font-size: 1.75rem;
  }

  .lede {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
}