:root {
  --bg: #f7f8fb;
  --card: #ffffff;
  --text: #14213d;
  --muted: #667085;
  --line: #d8dee9;
  --accent: #315cfd;
  --accent-dark: #173dc7;
  --soft-accent: #eef3ff;
  --shadow: 0 18px 55px rgba(20, 33, 61, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 248, 251, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(216, 222, 233, 0.8);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--text);
  color: white;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--muted);
}

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

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 82px 24px;
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 800;
  margin: 0 0 14px;
}

h1, h2, h3 { line-height: 1.08; margin: 0; }
h1 {
  font-size: clamp(3.4rem, 9vw, 7.2rem);
  letter-spacing: -0.08em;
}
h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.055em;
}
h3 {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.hero-text {
  max-width: 690px;
  font-size: 1.24rem;
  color: var(--muted);
  margin: 26px 0 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  transition: 0.2s ease;
}
.btn.primary { background: var(--accent); color: white; box-shadow: 0 12px 28px rgba(49, 92, 253, 0.28); }
.btn.primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn.secondary { border: 1px solid var(--line); background: white; color: var(--text); }
.btn.secondary:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.hero-card {
  background: var(--card);
  padding: 28px;
  border-radius: 28px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 22px;
  border: 1px solid rgba(216, 222, 233, 0.7);
}

.hero-card > div {
  padding: 18px;
  border-radius: 20px;
  background: var(--soft-accent);
}

.stat {
  display: block;
  font-size: 2.4rem;
  font-weight: 850;
  letter-spacing: -0.07em;
}
.label { color: var(--muted); font-weight: 700; }

.two-column {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: start;
  border-top: 1px solid var(--line);
}
.two-column p:last-child {
  font-size: 1.12rem;
  color: var(--muted);
  margin: 34px 0 0;
}

.section-heading { margin-bottom: 32px; }
.timeline { display: grid; gap: 24px; }
.timeline-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
}
.date {
  color: var(--muted);
  font-weight: 800;
  padding-top: 26px;
}
.content-card, .info-card {
  background: var(--card);
  border: 1px solid rgba(216, 222, 233, 0.85);
  border-radius: 26px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(20, 33, 61, 0.06);
}
.content-card h3 span {
  display: block;
  margin-top: 8px;
  color: var(--accent);
  font-size: 1rem;
}
.location { color: var(--muted); font-weight: 650; margin: 10px 0 16px; }
ul { padding-left: 1.15rem; margin: 0; color: var(--muted); }
li + li { margin-top: 8px; }

.grid-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.full-width { grid-column: 1 / -1; }
.info-card p { color: var(--muted); margin: 12px 0 0; }
.info-card.accent { background: linear-gradient(180deg, #ffffff 0%, #f4f7ff 100%); }
#achievements.grid-section { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.contact-section {
  display: flex;
  gap: 32px;
  justify-content: space-between;
  align-items: center;
  background: var(--text);
  color: white;
  border-radius: 34px;
  margin-bottom: 64px;
}
.contact-section p:not(.eyebrow) { color: #cbd5e1; max-width: 680px; }
.contact-section .eyebrow { color: #9bb4ff; }

footer {
  text-align: center;
  color: var(--muted);
  padding: 28px;
  border-top: 1px solid var(--line);
}

@media (max-width: 850px) {
  .nav-links { display: none; }
  .hero, .two-column, .timeline-item, .grid-section, #achievements.grid-section {
    grid-template-columns: 1fr;
  }
  .hero { min-height: auto; padding-top: 64px; }
  .date { padding-top: 0; }
  .contact-section { flex-direction: column; align-items: flex-start; border-radius: 0; }
}

.contact-section {
  align-items: stretch;
}

.contact-copy {
  flex: 1;
  min-width: 0;
}

.contact-form {
  flex: 0 1 420px;
  display: grid;
  gap: 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 26px;
  padding: 22px;
}

.form-row {
  display: grid;
  gap: 7px;
}

.form-row label {
  color: #e5edff;
  font-weight: 800;
  font-size: 0.9rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 13px 14px;
  font: inherit;
  color: white;
  background: rgba(255, 255, 255, 0.10);
  outline: none;
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: #aab8d5;
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: #9bb4ff;
  box-shadow: 0 0 0 3px rgba(155, 180, 255, 0.18);
}

.form-button {
  border: 0;
  cursor: pointer;
  margin-top: 4px;
}