/* ===== Design Tokens ===== */
:root {
  --bg: #0B0F19;
  --bg-alt: #0F1424;
  --surface: #151B2C;
  --surface-2: #1B2338;
  --border: #262F47;
  --text: #E8ECF7;
  --text-muted: #9AA5C0;
  --accent: #3DD6F5;
  --accent-2: #5B6CFF;
  --gradient: linear-gradient(120deg, var(--accent), var(--accent-2));
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px -20px rgba(0,0,0,0.5);
  --max-width: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--text-muted); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 760px; }

.center { text-align: center; margin-left: auto; margin-right: auto; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #001018;
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--gradient);
  color: #051019;
  box-shadow: 0 10px 30px -8px rgba(61, 214, 245, 0.45);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -8px rgba(61, 214, 245, 0.6); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  white-space: nowrap;
}
.logo strong { color: var(--accent); }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a { font-size: 0.95rem; color: var(--text-muted); font-weight: 500; }
.main-nav a:hover { color: var(--text); }
.nav-cta {
  background: var(--gradient);
  color: #051019 !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 60% at 80% 10%, rgba(91,108,255,0.25), transparent 60%),
    radial-gradient(50% 50% at 10% 20%, rgba(61,214,245,0.18), transparent 60%);
}
.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, #ffffff55 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 70% 60%, #ffffff40 50%, transparent 51%),
    radial-gradient(1px 1px at 50% 15%, #ffffff60 50%, transparent 51%),
    radial-gradient(1px 1px at 90% 40%, #ffffff35 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 30% 80%, #ffffff45 50%, transparent 51%),
    radial-gradient(1px 1px at 60% 90%, #ffffff30 50%, transparent 51%);
  background-repeat: repeat;
  background-size: 600px 600px;
  opacity: 0.8;
}
.orbit-ring {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(61,214,245,0.15);
  border-radius: 50%;
}
.orbit-ring::before {
  content: "";
  position: absolute;
  inset: 60px;
  border: 1px solid rgba(91,108,255,0.15);
  border-radius: 50%;
}

.hero-inner { max-width: 820px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}
.eyebrow.center { text-align: center; }
.hero-sub { font-size: 1.1rem; max-width: 640px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin: 32px 0 48px; }

.hero-stats {
  display: flex;
  gap: 40px;
  list-style: none;
  padding: 24px 0 0;
  margin: 0;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; gap: 4px; }
.stat-num { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }
.stat-disclaimer { font-size: 0.75rem; color: var(--text-muted); opacity: 0.7; margin-top: 12px; }

/* ===== Sections ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-sub { max-width: 560px; margin: 0 auto 20px; }
#why-heading, #plans-heading, #how-heading, #faq-heading, #kit-heading { max-width: 700px; margin-left: auto; margin-right: auto; }
#why-heading.center, .center#kit-heading {}
.section > .container > h2.center,
.section > .container > p.center { margin-left: auto; margin-right: auto; }

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(61,214,245,0.4); }
.card-icon { font-size: 1.75rem; margin-bottom: 16px; }
.card h3 { margin-bottom: 10px; }
.card p:last-child { margin-bottom: 0; }

/* ===== Kit Section ===== */
.kit-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.kit-visual {
  background:
    radial-gradient(circle at 50% 30%, rgba(61,214,245,0.12), transparent 70%),
    linear-gradient(180deg, #F4F6FA, #E7EAF2);
  border-radius: var(--radius);
  padding: 32px;
  overflow: hidden;
}
.kit-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}
.kit-features { list-style: none; padding: 0; margin: 20px 0 28px; display: flex; flex-direction: column; gap: 12px; }
.kit-features li { padding-left: 28px; position: relative; color: var(--text-muted); }
.kit-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ===== Plans ===== */
.plans-grid { margin-top: 44px; }
.plan-card { display: flex; flex-direction: column; position: relative; }
.plan-featured { border-color: var(--accent); background: var(--surface-2); }
.plan-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--gradient);
  color: #051019;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.plan-price { font-size: 1.4rem; color: var(--text); margin-bottom: 12px; }
.plan-price strong { color: var(--accent); }
.example-tag { font-size: 0.7rem; color: var(--text-muted); font-weight: 400; vertical-align: middle; }
.plan-list { list-style: none; padding: 0; margin: 16px 0 24px; display: flex; flex-direction: column; gap: 10px; flex-grow: 1; }
.plan-list li { padding-left: 22px; position: relative; font-size: 0.92rem; color: var(--text-muted); }
.plan-list li::before { content: "—"; position: absolute; left: 0; color: var(--accent-2); }

/* ===== Steps ===== */
.steps {
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  color: #051019;
  font-weight: 700;
  margin-bottom: 16px;
}

/* ===== FAQ ===== */
.accordion { margin-top: 40px; display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 20px;
}
.accordion-item summary {
  cursor: pointer;
  font-weight: 600;
  padding: 14px 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--accent);
  margin-left: 12px;
}
.accordion-item[open] summary::after { content: "\2212"; }
.accordion-item p { padding-bottom: 16px; margin: 0; }

/* ===== Contact ===== */
.section-cta { background: var(--bg-alt); }
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}
.contact-details { list-style: none; padding: 0; margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.contact-details a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row-split > div { display: flex; flex-direction: column; gap: 6px; }
label { font-size: 0.85rem; color: var(--text-muted); font-weight: 600; }
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-note { font-size: 0.78rem; color: var(--text-muted); text-align: center; margin: 0; }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  background: var(--bg);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand p { max-width: 380px; margin-top: 12px; }
.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; align-content: start; justify-content: flex-end; }
.footer-nav a { color: var(--text-muted); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--accent); }
.footer-legal {
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.7;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .kit-layout, .contact-layout { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}

@media (max-width: 640px) {
  .grid-3, .steps { grid-template-columns: 1fr; }
  .form-row-split { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 56px; }
  .hero-stats { gap: 24px; }

  .nav-toggle { display: flex; }
  .main-nav ul {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
    display: none;
  }
  .main-nav ul.open { display: flex; }
  .nav-cta { align-self: flex-start; }
}