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

:root {
  --brand:        #818cf8;
  --brand-dark:   #6366f1;
  --brand-glow:   rgba(129,140,248,.35);
  --text:         #f1f5f9;
  --muted:        #94a3b8;
  --border:       rgba(255,255,255,.09);
  --border-hi:    rgba(255,255,255,.16);
  --bg:           #080b14;
  --bg-alt:       #0c0f1d;
  --bg-card:      rgba(255,255,255,.04);
  --bg-card-hi:   rgba(255,255,255,.08);
  --radius:       12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform .15s, box-shadow .15s, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--brand-dark);
  color: #fff;
  border: 1px solid rgba(129,140,248,.5);
  box-shadow: 0 0 20px var(--brand-glow), 0 4px 14px rgba(99,102,241,.3);
}
.btn-primary:hover {
  background: var(--brand);
  box-shadow: 0 0 32px var(--brand-glow), 0 6px 20px rgba(99,102,241,.4);
}

.btn-secondary {
  background: rgba(255,255,255,.07);
  color: var(--text);
  border: 1px solid rgba(255,255,255,.13);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.22);
  box-shadow: 0 0 20px rgba(255,255,255,.04);
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 12px;
}

h2.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
  color: var(--text);
}

p.section-sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
}

section { padding: 96px 0; }

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8,11,20,.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: color .15s;
}
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; gap: 12px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--text); }
.nav-toggle svg { width: 24px; height: 24px; }

#hero {
  padding: 100px 0 80px;
  background:
    radial-gradient(ellipse 80% 60% at 50% -5%,  rgba(99,102,241,.28) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 85% 40%,  rgba(139,92,246,.18) 0%, transparent 55%),
    radial-gradient(ellipse 40% 30% at 15% 60%,  rgba(59,130,246,.10) 0%, transparent 50%),
    var(--bg);
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}

#hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  max-width: 800px;
  margin: 0 auto 24px;
  color: var(--text);
}
#hero h1 .highlight {
  background: linear-gradient(135deg, #818cf8 0%, #c084fc 50%, #818cf8 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}
@keyframes shimmer { to { background-position: 200% center; } }

#hero p.lead {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 64px;
}

#features { background: var(--bg-alt); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card,
.post-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background .2s, border-color .2s, transform .2s, box-shadow .2s;
}
.feature-card:hover,
.post-card:hover {
  background: var(--bg-card-hi);
  border-color: rgba(129,140,248,.3);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(129,140,248,.08), 0 20px 40px rgba(0,0,0,.4);
}

.feature-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 24px; height: 24px; }

.feature-card h3,
.step h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 15px; color: var(--muted); line-height: 1.7; }

#how-it-works { background: var(--bg); }

.features-header,
.how-header,
.blog-header { margin-bottom: 64px; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.66% + 28px);
  right: calc(16.66% + 28px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--border-hi), var(--border), transparent);
}

.step { text-align: center; padding: 0 24px; }
.step-number {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(129,140,248,.1);
  border: 1px solid rgba(129,140,248,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--brand);
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 24px rgba(129,140,248,.18);
}
.step p { font-size: 15px; color: var(--muted); }

#cta {
  background:
    radial-gradient(ellipse 70% 90% at 50% 50%, rgba(99,102,241,.25) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 50%, rgba(139,92,246,.14) 0%, transparent 55%),
    radial-gradient(ellipse 40% 60% at 80% 50%, rgba(59,130,246,.08) 0%, transparent 55%),
    var(--bg-alt);
  padding: 96px 0;
  text-align: center;
}
#cta h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: 16px;
}
#cta p { font-size: 18px; color: var(--muted); margin-bottom: 40px; }
#cta .btn-white {
  background: rgba(255,255,255,.1);
  color: var(--text);
  font-weight: 600;
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
#cta .btn-white:hover {
  background: rgba(255,255,255,.16);
  border-color: rgba(255,255,255,.3);
}
#cta .cta-note { margin-top: 16px; font-size: 13px; color: var(--muted); }

#contact {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(99,102,241,.2) 0%, transparent 65%),
    var(--bg);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: start;
}

.contact-info h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.contact-info p {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 48px;
}

.contact-detail { display: flex; flex-direction: column; gap: 24px; }

.contact-detail-item { display: flex; align-items: flex-start; gap: 16px; }

.contact-detail-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(129,140,248,.1);
  border: 1px solid rgba(129,140,248,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.contact-detail-text strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}
.contact-detail-text span { font-size: 14px; color: var(--muted); }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

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

.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-group:last-of-type { margin-bottom: 24px; }

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(148,163,184,.4); }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: rgba(129,140,248,.5);
  box-shadow: 0 0 0 3px rgba(129,140,248,.1);
}

.form-group select option { background: #0c0f1d; }
.form-group textarea { height: 140px; }

footer {
  background: #04060a;
  color: #475569;
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-brand .nav-logo { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 12px; max-width: 280px; }

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { font-size: 14px; color: #334155; transition: color .15s; }
.footer-col a:hover { color: rgba(255,255,255,.6); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 12px;
  color: #1e293b;
}
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { color: #1e293b; transition: color .15s; }
.footer-legal a:hover { color: rgba(255,255,255,.5); }

.post-article { padding: 96px 0; background: var(--bg); }

.post-header { text-align: center; margin-bottom: 48px; }

.post-title { font-size: clamp(32px, 4vw, 48px); font-weight: 800; letter-spacing: -.03em; }

.post-meta { font-size: 14px; color: var(--muted); margin-top: 12px; }

.post-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
  text-align: justify;
}
.post-body h2,
.post-body h3 { color: var(--text); }
.post-body a { color: var(--brand); }
.post-body code { background: var(--bg-card); border-radius: 4px; padding: 2px 6px; }

.post-list { display: flex; flex-direction: column; gap: 24px; }

.post-card-date { font-size: 13px; color: var(--muted); margin-bottom: 8px; display: block; }

.post-card-title { font-size: 22px; font-weight: 800; }
.post-card-title a { color: inherit; }
.post-card-title a:hover { color: var(--brand); }

.post-card-excerpt { font-size: 15px; color: var(--muted); margin-top: 8px; }

.post-card-link { color: var(--brand); font-size: 14px; font-weight: 600; margin-top: 16px; display: inline-block; }

.legal-content { max-width: 720px; margin: 80px auto 120px; }

.legal-meta { color: var(--muted); font-size: 14px; margin-bottom: 48px; }

.legal-content h1 { font-size: clamp(28px, 5vw, 48px); font-weight: 800; margin-bottom: 8px; }

.legal-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 12px;
  color: var(--text);
}

.legal-content p,
.legal-content li { color: var(--muted); line-height: 1.8; }

.legal-content ul { padding-left: 20px; margin-bottom: 16px; }

.legal-content li { margin-bottom: 6px; }

.legal-content a { color: var(--brand); }

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: #0e1222;
  border: 1px solid var(--border-hi);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 440px;
  position: relative;
  transform: translateY(16px) scale(.97);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
  box-shadow: 0 0 60px rgba(99,102,241,.2), 0 40px 80px rgba(0,0,0,.6);
}
.modal-backdrop.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.modal-close:hover { color: var(--text); background: rgba(255,255,255,.08); }

.modal-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 8px;
}

.modal h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  margin-bottom: 12px;
}

.modal-desc {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.modal-form .form-group { margin-bottom: 16px; }
.modal-form .form-group:last-of-type { margin-bottom: 24px; }

.modal-success:not([hidden]) {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 16px 0 8px;
  text-align: center;
  color: var(--muted);
  font-size: 16px;
}

@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .steps::before { display: none; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  section { padding: 64px 0; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: block; }
  .features-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}