:root {
  --blue-900: #0b3c8a;
  --blue-700: #2563eb;
  --blue-100: #eaf2ff;
  --text-900: #0f172a;
  --text-700: #334155;
  --bg: #f8fafc;
  --white: #ffffff;
  --accent: #f59e0b;
  --radius: 14px;
  --shadow: 0 14px 35px -24px rgba(11, 60, 138, 0.45);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Source Sans 3", sans-serif;
  background: var(--bg);
  color: var(--text-900);
  line-height: 1.6;
}

h1,
h2,
h3 {
  font-family: "Manrope", sans-serif;
  line-height: 1.2;
  margin: 0 0 0.8rem;
}

p {
  margin: 0 0 1rem;
  color: var(--text-700);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #d7e3fb;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

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

.brand-logo {
  height: 78px;
  width: auto;
  max-width: min(48vw, 340px);
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-900);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--blue-700);
}

.hero {
  padding: 5.2rem 0 3.2rem;
  background: radial-gradient(circle at 80% 20%, #dce9ff 0%, #f8fafc 45%, #f8fafc 100%);
}

.hero-grid {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: 1.45fr 1fr;
  align-items: start;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.9rem;
  font-weight: 700;
  color: var(--blue-900);
  background: #dce9ff;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.15rem);
}

.lead {
  font-size: 1.1rem;
  max-width: 62ch;
}

.hero-card,
.card,
.contact-form {
  background: var(--white);
  border: 1px solid #d9e6ff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.2rem 1.2rem 1.3rem;
}

.hero-card h2 {
  font-size: 1.2rem;
}

.hero-card ul {
  display: grid;
  gap: 0.4rem;
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(120deg, var(--blue-900), var(--blue-700));
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-secondary {
  background: var(--white);
  color: var(--blue-900);
  border-color: #c8dafd;
}

.section {
  padding: 4rem 0;
}

.alt-bg {
  background: linear-gradient(180deg, #f3f7ff 0%, #ffffff 100%);
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

.section-intro {
  max-width: 74ch;
  margin-bottom: 1.5rem;
}

.cards {
  display: grid;
  gap: 1rem;
}

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

.card {
  padding: 1.2rem;
}

.timeline {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.timeline article {
  background: var(--white);
  border: 1px solid #d9e6ff;
  border-radius: var(--radius);
  padding: 1rem;
}

.timeline span {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--blue-900);
  color: #fff;
  font-family: "Manrope", sans-serif;
  margin-bottom: 0.5rem;
}

.note {
  margin-top: 1rem;
  color: var(--text-900);
}

.price-card .plan {
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 0.25rem;
}

.price-card .price {
  font-family: "Manrope", sans-serif;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-900);
}

.price-card.featured {
  border-color: #90b6ff;
  background: linear-gradient(180deg, #eff5ff 0%, #ffffff 100%);
}

.highlights {
  display: grid;
  gap: 0.8rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 1.4rem;
  align-items: center;
  margin-bottom: 1.1rem;
}

.about-photo {
  margin: 0;
  background: #e8efff;
  border: 1px solid #cfe0ff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.about-photo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.about-grid > div {
  max-width: 64ch;
}

.publication-card {
  max-width: 760px;
}

.publication-type {
  display: inline-block;
  margin-bottom: 0.4rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-900);
  font-weight: 700;
  font-size: 0.88rem;
}

.publication-card .btn {
  margin-top: 0.6rem;
}

.publication-actions {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn-disabled {
  background: #e2e8f0;
  color: #475569;
  border-color: #cbd5e1;
  cursor: not-allowed;
}

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

.contact {
  background: radial-gradient(circle at 10% 10%, #e7f0ff 0%, #f8fafc 40%, #f8fafc 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.contact-form {
  padding: 1.2rem;
}

.contact-form label {
  font-weight: 700;
  display: block;
  margin-bottom: 0.28rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-bottom: 0.8rem;
  border: 1px solid #c2d6ff;
  border-radius: 8px;
  padding: 0.7rem;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid #9abbff;
  border-color: #8db2ff;
}

.hidden-field {
  display: none;
}

.site-footer {
  border-top: 1px solid #d7e3fb;
  padding: 1rem 0;
  background: #f6f9ff;
}

.site-footer p {
  margin: 0;
  color: #1f2a44;
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-grid,
  .cards.two,
  .about-grid,
  .timeline,
  .faq-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .brand-logo {
    height: 64px;
    max-width: 82vw;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 0.6rem 1rem;
  }

  .section {
    padding: 3.2rem 0;
  }

  .hero {
    padding-top: 4.3rem;
  }
}