/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: #f8f7f4;
  color: #1a1a1a;
  line-height: 1.6;
}

/* ===== CSS VARIABLES ===== */
:root {
  --bg: #f8f7f4;
  --bg-dark: #111214;
  --surface: #ffffff;
  --surface-dark: #1a1c1f;
  --border: #e4e0d8;
  --border-dark: #2a2d32;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --text-dark: #f0ede8;
  --text-muted-dark: #8a8a8a;
  --accent: #1a56db;
  --accent-light: #e8effe;
  --green: #0d9276;
  --mono: 'DM Mono', monospace;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 247, 244, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--text);
}
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.mobile-menu.open { display: flex; }
.mobile-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-link:last-child { border-bottom: none; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ===== HERO ===== */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 100px;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: center;
}
.hero-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}
.hero-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: var(--text);
}
.hero-last { color: var(--accent); }
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  display: inline-block;
  background: var(--text);
  color: #fff;
  padding: 13px 28px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  letter-spacing: 0.3px;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--text);
  padding: 13px 28px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid var(--border);
  transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--text); }

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.card-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-bottom: 20px;
}
.card-dot.green { background: #22c55e; box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
.card-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.card-value {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 16px;
}
.card-divider { height: 1px; background: var(--border); margin-bottom: 16px; }

@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; padding: 48px 24px 60px; }
  .hero-card { display: none; }
}

/* ===== SECTIONS ===== */
.section { padding: 80px 0; }
.section-dark {
  background: var(--bg-dark);
  color: var(--text-dark);
}
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-dark .section-label { color: #60a5fa; }
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 48px;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.about-text p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.8;
}
.about-text strong { color: var(--text); }
.skill-category { margin-bottom: 24px; }
.skill-cat-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 20px;
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== TIMELINE ===== */
.timeline { display: flex; flex-direction: column; gap: 0; }
.tl-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border-dark);
  position: relative;
}
.tl-item:last-child { border-bottom: none; }
.tl-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 6px;
}
.tl-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: #6b7280;
  margin-bottom: 4px;
}
.tl-role {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 2px;
}
.tl-company {
  font-size: 0.85rem;
  color: #9ca3af;
}

/* ===== EDUCATION ===== */
.edu-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  max-width: 400px;
}
.edu-icon { font-size: 2rem; }
.edu-degree {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.edu-school { font-size: 0.88rem; color: var(--text-muted); }

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.2s;
}
.project-card:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0,0,0,0.08); }
.project-header { padding: 24px 24px 0; }
.project-tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.project-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.project-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  padding: 0 24px;
  margin: 12px 0;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}
.stack-tag {
  font-size: 0.7rem;
  font-weight: 500;
  font-family: var(--mono);
  color: var(--text-muted);
  background: var(--bg);
  padding: 3px 10px;
  border-radius: 4px;
}
.project-links {
  display: flex;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}
.project-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.project-link:hover { text-decoration: underline; }

/* ===== CERTS ===== */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.2s;
}
.cert-card:hover { border-color: var(--accent); }
.cert-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.cert-name { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.cert-issuer { font-size: 0.78rem; color: var(--text-muted); }
.cert-status {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 8px;
}
.cert-status.earned { background: #dcfce7; color: #166534; }
.cert-status.in-progress { background: #fef9c3; color: #854d0e; }
.cert-status.planned { background: #f1f5f9; color: #475569; }

/* ===== BLOG ===== */
.blog-grid { display: flex; flex-direction: column; gap: 24px; }
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
}
.blog-card:hover { border-color: var(--accent); transform: translateX(4px); }
.blog-tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.blog-title { font-family: 'Playfair Display', serif; font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.blog-excerpt { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }
.blog-date { font-family: var(--mono); font-size: 0.72rem; color: var(--text-muted); white-space: nowrap; }
.blog-empty {
  text-align: center;
  padding: 60px 24px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-links { display: flex; flex-direction: column; gap: 14px; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.2s;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); }
.contact-link-icon { font-size: 1.1rem; }
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== PAGE HERO ===== */
.page-hero {
  padding: 64px 24px 48px;
  max-width: 1100px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.page-hero-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.page-hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.page-hero-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 80px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--text);
}
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
}
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 0.78rem; color: var(--text-muted); }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content { animation: fadeUp 0.6s ease both; }
.hero-visual { animation: fadeUp 0.6s ease 0.15s both; }