/* Core brand variables */
:root {
  --indigo: #3B3B98;
  --teal: #00D1B2;
  --violet: #7A5CFA;
  --mint: #4EF0C4;
  --graphite: #1E1E2F;
  --slate: #505065;
  --mist: #F4F5F7;
  --danger: #FF6B6B;
  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.65);
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top left, #1E1E2F 0, #02030A 55%, #02020A 100%);
  color: #FFFFFF;
  -webkit-font-smoothing: antialiased;
}

/* Layout helpers */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: linear-gradient(90deg, rgba(2,2,12,0.92), rgba(2,2,18,0.96));
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-icon {
  width: 34px;
  height: 34px;
}

.brand-wordmark {
  font-family: "DM Serif Display", serif;
  font-size: 26px;
  letter-spacing: 1px;
  color: #FFFFFF;
}

.main-nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

.main-nav a {
  text-decoration: none;
  color: rgba(244,245,247,0.78);
  padding: 6px 4px;
}

.main-nav a:hover {
  color: #FFFFFF;
}

.header-cta {
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--violet));
  color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(0,0,0,0.4);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.22);
  color: #FFFFFF;
}

.btn-ghost:hover {
  border-color: var(--mint);
  color: var(--mint);
}

/* Hero */
.hero {
  padding: 80px 0 72px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 40px;
  align-items: center;
}

.hero-copy h1 {
  font-family: "DM Serif Display", serif;
  font-size: clamp(40px, 4vw, 54px);
  line-height: 1.08;
  margin: 8px 0 18px;
}

.hero-copy .lead {
  font-size: 16px;
  max-width: 560px;
  color: rgba(244,245,247,0.82);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
  color: var(--mint);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 18px;
}

.hero-highlights {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  font-size: 13px;
  color: rgba(244,245,247,0.88);
}

.hero-highlights li + li {
  margin-top: 4px;
}

.hero-visual img {
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-alt {
  background: radial-gradient(circle at top right, rgba(59,59,152,0.55), transparent 60%);
}

.section-header {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-header h2 {
  font-family: "DM Serif Display", serif;
  font-size: 30px;
  margin-bottom: 8px;
}

.section-header p {
  color: rgba(244,245,247,0.8);
  font-size: 15px;
}

/* Cards */
.card {
  background: rgba(3,4,18,0.9);
  border-radius: var(--radius-md);
  padding: 22px 22px 24px;
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 14px 28px rgba(0,0,0,0.55);
}

.card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.card p {
  font-size: 14px;
  color: rgba(244,245,247,0.85);
}

.card-outline {
  background: transparent;
  border-style: dashed;
}

.card-highlight {
  border-color: var(--mint);
  box-shadow: 0 16px 36px rgba(0, 209, 178, 0.25);
}

/* Feature lists */
.feature-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
  font-size: 14px;
  color: rgba(244,245,247,0.9);
}

.feature-list li + li {
  margin-top: 8px;
}

/* Screenshots */
.shot img,
.shadow-img {
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.shot figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: rgba(244,245,247,0.78);
}

/* Pricing */
.pricing-grid .price {
  font-size: 20px;
  margin: 4px 0 12px;
  color: var(--mint);
}

/* Contact form */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.contact-form label {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(3,4,18,0.9);
  color: #FFFFFF;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--mint);
  box-shadow: 0 0 0 1px rgba(78,240,196,0.4);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 20px 0 24px;
  background: rgba(2,2,10,0.96);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(244,245,247,0.75);
}

.footer-links {
  display: flex;
  gap: 14px;
}

.footer-links a {
  color: rgba(244,245,247,0.8);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--mint);
}

/* Responsiveness */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 72px;
  }
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
  .grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }
  .header-inner {
    flex-wrap: wrap;
    gap: 12px;
  }
  .main-nav {
    display: none; /* keep it simple for now */
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .section {
    padding: 56px 0;
  }
}