:root {
  --bg-primary: #0A0F1E;
  --bg-card: #111827;
  --accent: #8B5CF6;
  --accent-hover: #7C3AED;
  --text-white: #F9FAFB;
  --text-gray: #9CA3AF;
  --success: #10B981;
  --border-subtle: rgba(249, 250, 251, 0.08);
  --max-width: 1160px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-primary);
  color: var(--text-white);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

.section-eyebrow {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-gray);
  font-size: 1.05rem;
  max-width: 620px;
}

.section-header {
  text-align: center;
  margin: 0 auto 56px;
  max-width: 680px;
}

section {
  padding: 96px 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  min-height: 44px;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-white);
  padding: 12px 22px;
  font-size: 0.95rem;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-large {
  padding: 18px 32px;
  font-size: 1.05rem;
  border-radius: 12px;
}

.btn-glow {
  animation: pulse-glow 2.6s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.45); }
  50% { box-shadow: 0 0 0 14px rgba(139, 92, 246, 0); }
}

.btn-block { width: 100%; }

.link-secondary {
  color: var(--text-gray);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.link-secondary:hover { color: var(--text-white); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-white);
}

.logo .k-accent {
  color: var(--accent);
  font-size: 1.55rem;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 88px 0 64px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35) 0%, rgba(139, 92, 246, 0) 65%);
  filter: blur(10px);
  animation: drift-glow 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes drift-glow {
  0%, 100% { opacity: 0.75; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.08); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #C4B5FD;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.18;
  max-width: 900px;
  margin: 0 auto 22px;
  text-wrap: balance;
}

.hero-sub {
  color: var(--text-gray);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 32px;
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 36px;
}

.metric-card {
  background: #1E293B;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 14px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-white);
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

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

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px 28px;
}

.problem-card .icon {
  font-size: 2.2rem;
  margin-bottom: 18px;
}

.problem-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.problem-card p {
  color: var(--text-gray);
  font-size: 0.96rem;
}

/* ---------- Solution ---------- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 8px;
}

.feature-block .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.14);
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.feature-block h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-block p {
  color: var(--text-gray);
  font-size: 0.96rem;
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 8px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--text-white);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* ---------- Early access ---------- */
.early-access {
  padding: 40px 0 104px;
}

.ea-card {
  background: var(--bg-card);
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: 24px;
  padding: 56px 40px;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.08), 0 0 60px rgba(139, 92, 246, 0.15);
  text-align: center;
}

.ea-badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--success);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.ea-card h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.ea-card .section-subtitle {
  margin: 0 auto 28px;
  max-width: 520px;
}

.spots-counter {
  margin: 0 auto 32px;
}

.spots-number {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.spots-label {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin-top: 4px;
}

.spots-bar-track {
  width: 100%;
  max-width: 320px;
  height: 6px;
  background: rgba(249, 250, 251, 0.08);
  border-radius: 999px;
  margin: 14px auto 0;
  overflow: hidden;
}

.spots-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 999px;
  width: 0%;
  transition: width 0.6s ease;
}

.ea-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  text-align: left;
  margin-top: 8px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field.full { grid-column: 1 / -1; }

.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-gray);
}

.form-field input,
.form-field select {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text-white);
  font-family: inherit;
  font-size: 0.95rem;
  min-height: 44px;
  transition: border-color 0.15s ease;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%239CA3AF' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.form-submit-row { grid-column: 1 / -1; margin-top: 8px; }

.form-note {
  grid-column: 1 / -1;
  color: var(--text-gray);
  font-size: 0.82rem;
  text-align: center;
  margin-top: 4px;
}

.ea-success {
  display: none;
  text-align: center;
  padding: 24px 0;
}

.ea-success h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.ea-success p {
  color: var(--text-gray);
}

.ea-waitlist-form {
  display: none;
  gap: 12px;
  margin-top: 8px;
}

.ea-waitlist-form .form-field { flex: 1; }

.ea-waitlist-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 560px) {
  .ea-waitlist-row { flex-direction: row; align-items: flex-end; }
}

.form-error {
  color: #F87171;
  font-size: 0.85rem;
  margin-top: 10px;
  display: none;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-white);
  font-family: inherit;
  font-size: 1.02rem;
  font-weight: 600;
  text-align: left;
  padding: 22px 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--accent);
  transition: transform 0.2s ease;
  font-size: 1.3rem;
  line-height: 1;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
}

.faq-item.open .faq-answer {
  max-height: 220px;
  padding-bottom: 22px;
}

.faq-answer p {
  color: var(--text-gray);
  font-size: 0.96rem;
  padding-right: 40px;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
}

footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.footer-tagline {
  color: var(--text-gray);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-gray);
}

.footer-links a { transition: color 0.15s ease; min-height: 44px; display: inline-flex; align-items: center; }
.footer-links a:hover { color: var(--text-white); }

.footer-copy {
  color: var(--text-gray);
  font-size: 0.82rem;
  margin-top: 8px;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .card-grid,
  .feature-list,
  .steps {
    grid-template-columns: 1fr;
  }

  .ea-form {
    grid-template-columns: 1fr;
  }

  section { padding: 72px 0; }
}

@media (max-width: 480px) {
  .hero { padding: 56px 0 48px; }
  .ea-card { padding: 40px 22px; }
  .hero-cta .btn-large { width: 100%; }
}