*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #1a6ef5;
  --accent-dark: #1457c8;
  --text: #1a1a2e;
  --muted: #5a6072;
  --bg: #f8f9fc;
  --card: #ffffff;
  --border: #e2e6f0;
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 0.95rem; transition: color 0.15s; }
.nav-links a:hover { color: var(--accent); text-decoration: none; }

/* HERO */
.hero {
  background: linear-gradient(135deg, #1a2540 0%, #1a6ef5 100%);
  color: #fff;
  padding: 80px 24px 90px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 18px;
}
.hero p {
  font-size: 1.15rem;
  opacity: 0.88;
  max-width: 560px;
  margin: 0 auto 32px;
}
.btn {
  display: inline-block;
  background: #fff;
  color: var(--accent);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 0.97rem;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.88; text-decoration: none; }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
  margin-left: 12px;
}
.btn-outline:hover { border-color: #fff; }

/* SECTIONS */
.section {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 24px;
}
.section-title {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.section-sub {
  color: var(--muted);
  margin-bottom: 40px;
  font-size: 1.02rem;
}

/* CARDS */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}
.card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.94rem; line-height: 1.6; }

/* PROJECT HIGHLIGHT */
.project-highlight {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  display: flex;
  gap: 32px;
  align-items: flex-start;
}
.project-highlight .proj-icon {
  font-size: 3rem;
  flex-shrink: 0;
}
.project-highlight h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.project-highlight p { color: var(--muted); margin-bottom: 16px; }
.tag {
  display: inline-block;
  background: #eaf0ff;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  margin-right: 6px;
  margin-bottom: 6px;
}

/* DIVIDER */
.divider { border: none; border-top: 1px solid var(--border); }

/* FOOTER */
footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 14px; flex-wrap: wrap; }

/* PAGE CONTENT */
.page-header {
  background: linear-gradient(135deg, #1a2540 0%, #1a6ef5 100%);
  color: #fff;
  padding: 54px 24px 56px;
  text-align: center;
}
.page-header h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 10px; }
.page-header p { opacity: 0.85; font-size: 1.05rem; }
.prose { max-width: 720px; margin: 0 auto; padding: 56px 24px; }
.prose h2 { font-size: 1.35rem; font-weight: 700; margin: 36px 0 12px; }
.prose p { color: #3a4055; margin-bottom: 16px; }
.prose ul { padding-left: 20px; margin-bottom: 16px; }
.prose ul li { color: #3a4055; margin-bottom: 8px; }

/* CONTACT FORM */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: 0.93rem; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.97rem;
  font-family: inherit;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.15s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 0.97rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent-dark); }

@media (max-width: 600px) {
  .project-highlight { flex-direction: column; gap: 16px; }
  .nav-links { gap: 16px; }
  .btn-outline { margin-left: 0; margin-top: 12px; display: inline-block; }
}