/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0A0A0F;
  --bg-card:   #13131A;
  --bg-elev:   #1C1C28;
  --border:    #2A2A38;
  --teal:      #14A8A0;
  --teal-dim:  rgba(20, 168, 160, 0.12);
  --teal-glow: rgba(20, 168, 160, 0.25);
  --text-1:    #FFFFFF;
  --text-2:    #8E8EA8;
  --text-3:    #4A4A62;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ───────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 720px; }

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 20px;
  font-weight: 900;
  color: var(--teal);
  letter-spacing: 2px;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  font-family: inherit;
}
.btn:hover { opacity: 0.88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-full { width: 100%; text-align: center; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 80px 0 100px;
  text-align: center;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(20,168,160,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-banner {
  width: 100%;
  max-width: 480px;
  height: auto;
  margin: 0 auto 32px;
  display: block;
}
.hero-tagline {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  line-height: 1.25;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* ── Sections ─────────────────────────────────────────────── */
.section { padding: 96px 0; }
.section-dark { background: var(--bg-card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 800;
  letter-spacing: -0.5px;
  text-align: center;
  margin-bottom: 12px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-2);
  text-align: center;
  margin-bottom: 56px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Feature Grid ─────────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: var(--teal); }
.feature-icon {
  font-size: 24px;
  color: var(--teal);
  margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-1);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}

/* ── Audience Grid ────────────────────────────────────────── */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.audience-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  border-top: 3px solid var(--teal);
}
.audience-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.audience-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}

/* ── Integration Pills ────────────────────────────────────── */
.integration-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.integration-pill {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pill-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--teal);
  background: var(--teal-dim);
  border-radius: 999px;
  padding: 2px 8px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ── Beta Form ────────────────────────────────────────────── */
.beta-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  margin-top: 8px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.form-group:last-of-type { margin-bottom: 0; }

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.label-hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-3);
  margin-left: 4px;
}

input[type="text"],
input[type="email"],
textarea {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-1);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
  resize: vertical;
}
input:focus, textarea:focus { border-color: var(--teal); }
input::placeholder, textarea::placeholder { color: var(--text-3); }

/* ── Checkboxes ───────────────────────────────────────────── */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 4px;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  padding: 10px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.checkbox-item:hover { border-color: var(--teal); }
.checkbox-item input[type="checkbox"] { display: none; }
.checkbox-box {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 5px;
  border: 2px solid var(--border);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, background 0.15s;
}
.checkbox-item input:checked ~ .checkbox-box {
  background: var(--teal);
  border-color: var(--teal);
}
.checkbox-item input:checked ~ .checkbox-box::after {
  content: '';
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
  display: block;
}
.checkbox-item:has(input:checked) {
  border-color: var(--teal);
  background: var(--teal-dim);
}

/* ── Form States ──────────────────────────────────────────── */
.hidden { display: none !important; }

.form-success {
  text-align: center;
  padding: 40px 20px;
}
.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(20,168,160,0.15);
  color: var(--teal);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  border: 2px solid var(--teal);
}
.form-success h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
}
.form-success p { color: var(--text-2); font-size: 15px; }

.form-error {
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(255, 77, 77, 0.1);
  border: 1px solid rgba(255, 77, 77, 0.3);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #FF6B6B;
  text-align: center;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
}
.footer-logo {
  font-size: 18px;
  font-weight: 900;
  color: var(--teal);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 10px;
}
.footer-copy { font-size: 13px; color: var(--text-3); }
.footer-sub { font-size: 12px; color: var(--text-3); margin-top: 4px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding: 110px 0 72px; }
  .section { padding: 64px 0; }
  .beta-form { padding: 28px 20px; }
  .checkbox-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .checkbox-grid { grid-template-columns: 1fr; }
}