:root {
  --ink-900: #092336;
  --ink-700: #1a3a4c;
  --ink-500: #396076;
  --paper: #f4f7fb;
  --white: #ffffff;
  --teal: #18a0a8;
  --teal-dark: #0b7f85;
  --gold: #ffb74d;
  --line: #d8e2ec;
  --shadow: 0 20px 60px rgba(7, 29, 44, 0.12);
  --radius-xl: 24px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Work Sans", "Segoe UI", sans-serif;
  color: var(--ink-900);
  background: radial-gradient(circle at 15% 0%, #ddf5ff 0%, rgba(221, 245, 255, 0) 42%),
    radial-gradient(circle at 95% 5%, #fff0d6 0%, rgba(255, 240, 214, 0) 35%),
    var(--paper);
  line-height: 1.55;
}

.aurora {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.8) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.36;
  z-index: -1;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-badge {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.7rem;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(140deg, var(--teal), #136e95);
}

.brand-text {
  font-family: "Sora", sans-serif;
  font-weight: 700;
  color: var(--ink-900);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.top-nav a {
  text-decoration: none;
  color: var(--ink-700);
  font-weight: 600;
  font-size: 0.94rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid var(--teal);
  border-radius: 999px;
  padding: 0.72rem 1.15rem;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, var(--teal), var(--teal-dark));
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(16, 126, 133, 0.25);
}

.button-small {
  padding: 0.58rem 0.95rem;
  font-size: 0.86rem;
}

.button-ghost {
  background: transparent;
  color: var(--ink-900);
  border-color: var(--line);
}

.hero {
  padding: 4.2rem 0 3rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-500);
  font-weight: 700;
}

h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
  line-height: 1.2;
  margin: 0;
}

h1 {
  margin-top: 0.65rem;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  max-width: 18ch;
}

.hero-copy {
  margin: 1rem 0 0;
  font-size: clamp(1rem, 2.1vw, 1.2rem);
  color: var(--ink-700);
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.hero-strip {
  margin-top: 2.2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.hero-strip span {
  text-align: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  padding: 0.62rem;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--ink-700);
}

.section {
  padding: 3rem 0;
}

.section-head h2 {
  margin-top: 0.7rem;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  max-width: 22ch;
}

.problem-grid,
.feature-grid,
.audience-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.3rem;
}

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

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card,
.feature-card,
.audience,
.step,
.cta-panel {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.card h3,
.feature-card h3,
.audience h3,
.step h3 {
  font-size: 1.05rem;
}

.card ul {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
}

.card li {
  margin-top: 0.5rem;
}

.card-accent {
  border-color: #9fdbe2;
  background: linear-gradient(180deg, #f3feff 0%, #ffffff 100%);
}

.feature-card p,
.audience p,
.step p,
.cta-panel p {
  margin: 0.65rem 0 0;
  color: var(--ink-700);
}

.steps {
  margin-top: 1.3rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-number {
  display: inline-block;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 0.55rem;
}

.cta-panel {
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, #e9fbfd, #ffffff 45%, #fff7e8);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.site-footer {
  padding: 1.2rem 0 2.5rem;
  color: var(--ink-500);
  font-size: 0.9rem;
}

.fade,
.rise {
  opacity: 0;
  transform: translateY(10px);
  animation: reveal 700ms ease forwards;
}

.delay-1 { animation-delay: 100ms; }
.delay-2 { animation-delay: 200ms; }
.delay-3 { animation-delay: 300ms; }
.delay-4 { animation-delay: 400ms; }

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .feature-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
  }

  .top-nav {
    flex-wrap: wrap;
    gap: 0.7rem;
  }

  .hero {
    padding-top: 2rem;
  }

  .hero-strip,
  .problem-grid,
  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 2.1rem 0;
  }
}