:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #112233;
  background: #f8fbff;
  --surface: #ffffff;
  --surface-alt: #f5f9ff;
  --text: #0f1e38;
  --muted: #56667f;
  --accent: #2d70ff;
  --accent-soft: #e7f0ff;
  --border: #dfe7f1;
  --shadow: 0 24px 80px rgba(15, 30, 56, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  background: linear-gradient(180deg, #f7fbff 0%, #eff6ff 55%, #ffffff 100%);
}

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

button, input, select {
  font: inherit;
}

.page-shell {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2d70ff 0%, #31b7ff 100%);
  box-shadow: 0 16px 32px rgba(45, 112, 255, 0.22);
}

.brand strong {
  display: block;
  font-size: 1.1rem;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.hero-panel {
  border-radius: 32px;
  background: radial-gradient(circle at top left, rgba(45, 112, 255, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(87, 197, 254, 0.16), transparent 28%),
    var(--surface);
  box-shadow: var(--shadow);
  padding: 48px 36px 60px;
  margin-bottom: 40px;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 4vw, 4.2rem);
  line-height: 1.02;
  margin: 0;
}

.hero-copy p {
  margin: 22px 0 0;
  max-width: 600px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 16px 24px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, #2d70ff, #3a9bff);
  box-shadow: 0 20px 40px rgba(45, 112, 255, 0.24);
}

.btn-secondary {
  background: rgba(45, 112, 255, 0.08);
  color: #0f1e38;
}

.hero-visual {
  position: relative;
  background: linear-gradient(180deg, #eef7ff 0%, #ffffff 100%);
  border-radius: 32px;
  padding: 24px;
  overflow: hidden;
}

.hero-visual img {
  width: 100%;
  border-radius: 24px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.5);
}

.section {
  padding: 60px 0;
}

.section-header {
  max-width: 760px;
  margin-bottom: 32px;
}

.eyebrow {
  display: inline-block;
  color: #2d70ff;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin-bottom: 14px;
}

.section-header h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.1;
}

.section-features .feature-grid,
.cards-grid,
.workflow-grid {
  display: grid;
  gap: 22px;
}

.section-features .feature-grid {
  grid-template-columns: repeat(3, minmax(220px, 1fr));
}

.feature-card {
  border-radius: 24px;
  background: var(--surface);
  padding: 28px;
  box-shadow: 0 18px 48px rgba(15, 30, 56, 0.06);
}

.feature-card h3 {
  margin-top: 0;
  margin-bottom: 14px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.cards-grid {
  grid-template-columns: repeat(2, minmax(280px, 1fr));
}

.opportunity-card {
  display: grid;
  gap: 18px;
  border-radius: 28px;
  background: var(--surface);
  padding: 28px;
  box-shadow: var(--shadow);
}

.opportunity-tag {
  display: inline-flex;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #1f3e7f;
  font-weight: 700;
  width: fit-content;
}

.opportunity-title {
  margin: 0;
  font-size: 1.2rem;
}

.opportunity-description {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.opportunity-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.95rem;
}

.btn-action {
  width: fit-content;
  padding: 14px 22px;
}

.section-style-light {
  background: #f3f7ff;
  border-radius: 32px;
  padding: 60px 40px;
}

.workflow-grid {
  grid-template-columns: repeat(3, minmax(220px, 1fr));
}

.workflow-step {
  background: var(--surface);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 48px rgba(15, 30, 56, 0.06);
}

.workflow-step strong {
  display: inline-flex;
  color: var(--accent);
  font-size: 1.7rem;
  margin-bottom: 18px;
}

.workflow-step h3 {
  margin: 0 0 12px;
}

.signup-panel {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(320px, 1fr) 1.3fr;
  align-items: center;
}

.profile-form {
  display: grid;
  gap: 18px;
  background: var(--surface);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row label {
  font-weight: 700;
}

.form-row input,
.form-row select,
.form-row textarea {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
  background: #fff;
  color: var(--text);
}

.form-row textarea {
  resize: vertical;
  min-height: 130px;
}

.wide-row {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.form-note {
  color: #2d70ff;
  font-weight: 700;
}

.footer-panel {
  text-align: center;
  padding: 30px 0 10px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero-content,
  .signup-panel,
  .workflow-grid,
  .feature-grid,
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .topbar {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 680px) {
  .page-shell {
    padding: 0 18px 32px;
  }

  .app-shell {
    padding-bottom: 110px;
  }

  .app-shell-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: rgba(255,255,255,0.94);
    border-top: 1px solid #e7eff9;
    box-shadow: 0 -12px 32px rgba(15, 30, 56, 0.08);
    z-index: 100;
  }

  .app-shell-bottom-nav a {
    flex: 1;
    text-align: center;
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
  }
}
  .hero-panel {
    padding: 32px 24px 44px;
  }
  .nav-actions {
    flex-wrap: wrap;
    gap: 14px;
  }
  .section-style-light {
    padding: 40px 24px;
  }
  .profile-form {
    padding: 24px;
  }
}