:root {
  --navy: #1F3864;
  --navy-dark: #142647;
  --grey: #444444;
  --grey-light: #6b7280;
  --bg-alt: #f6f7fb;
  --border: #e4e7ee;
  --white: #ffffff;
  --radius: 10px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--grey);
  line-height: 1.6;
  background: var(--white);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  color: var(--navy);
  font-weight: 700;
  margin: 0 0 12px;
}

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

/* NAV */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { font-weight: 800; font-size: 1.05rem; color: var(--navy); }
.logo:hover { text-decoration: none; }
.nav nav { display: flex; gap: 28px; }
.nav nav a {
  color: var(--grey);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav nav a:hover { color: var(--navy); text-decoration: none; }

/* HERO */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, #f6f7fb 0%, #ffffff 100%);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
}
.hero h1 {
  font-size: 2.6rem;
  line-height: 1.2;
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 1.08rem;
  color: var(--grey-light);
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 24px; flex-wrap: wrap; }
.hero-links { font-size: 0.95rem; color: var(--grey-light); }
.hero-links .dot { margin: 0 8px; color: var(--border); }

.hero-photo img {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(31,56,100,0.18);
  margin-left: auto;
  display: block;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--navy);
  color: var(--white) !important;
}
.btn-primary:hover { background: var(--navy-dark); }
.btn-secondary {
  background: var(--white);
  color: var(--navy) !important;
  border: 1.5px solid var(--navy);
}
.btn-secondary:hover { background: var(--bg-alt); }

/* SECTIONS */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { font-size: 1.8rem; margin-bottom: 8px; }
.section-sub { color: var(--grey-light); margin-bottom: 32px; max-width: 640px; }
.about-text { max-width: 720px; font-size: 1.05rem; }

/* PROJECTS */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(31,56,100,0.10);
}
.project-card-head { margin-bottom: 10px; }
.project-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 4px; }
.tag {
  background: #eef1f8;
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
}
.project-card p { flex: 1; font-size: 0.94rem; color: var(--grey); }
.project-links { margin-top: 14px; }
.project-links a { font-weight: 600; font-size: 0.92rem; }

/* SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.skill-group h4 { font-size: 0.95rem; margin-bottom: 6px; }
.skill-group p { font-size: 0.92rem; color: var(--grey-light); margin: 0; }

/* EXPERIENCE */
.exp-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.exp-item:last-of-type { border-bottom: none; }
.exp-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.exp-head h3 { font-size: 1.05rem; margin: 0; }
.exp-date { font-size: 0.88rem; color: var(--grey-light); font-style: italic; }
.exp-item p { margin: 0; font-size: 0.95rem; }
.exp-more { margin-top: 20px; color: var(--grey-light); font-size: 0.92rem; }

/* CONTACT */
.contact-inner { text-align: center; max-width: 560px; }
.contact-inner p { color: var(--grey-light); margin-bottom: 28px; }
.contact-links { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
.footer {
  padding: 28px 0;
  text-align: center;
  color: var(--grey-light);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* RESPONSIVE */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-photo img { margin: 0 auto; }
  .hero h1 { font-size: 2rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .nav nav { display: none; }
}