/* ─── RESET & BASE ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #ffffff;
  --bg-off:    #f7f7f7;
  --fg:        #000000;
  --fg-2:      #444444;
  --fg-3:      #797979;
  --border:    #e2e2e2;
  --border-2:  #c8c8c8;
  --font-sans: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --max:       900px;
  --nav-h:     58px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── SCROLLBAR ─────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 2px; }

/* ─── NAV ───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: border-color 0.3s;
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--fg);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--fg-2);
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--fg);
  transition: width 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active { color: var(--fg); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--fg);
  transition: all 0.3s;
}

.nav-toggle.open span:first-child { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:last-child  { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── SECTIONS ──────────────────────────────────────── */
section { padding: 7rem 0; }
section:nth-child(even) { background: var(--bg-off); }

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 2.5rem;
}

.section-sub {
  font-size: 0.92rem;
  color: var(--fg-2);
  margin-top: -1.8rem;
  margin-bottom: 2.5rem;
}

.section-sub a {
  border-bottom: 1px solid var(--border-2);
  transition: border-color 0.2s;
}
.section-sub a:hover { border-color: var(--fg); }

/* ─── HERO ──────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0;
  padding-top: var(--nav-h);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 4rem;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero-name {
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.8rem;
}

.hero-sub {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--fg-2);
  font-weight: 300;
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.link-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border-2);
  border-radius: 100px;
  color: var(--fg-2);
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.link-pill:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.hero-cta {
  font-size: 0.82rem;
  color: var(--fg-3);
  letter-spacing: 0.04em;
  transition: color 0.2s;
  align-self: flex-start;
}
.hero-cta:hover { color: var(--fg); }

.hero-stats {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 2rem;
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--border);
}

.stat {
  display: flex;
  flex-direction: column;
  padding: 0 2.5rem;
  gap: 0.1rem;
}

.stat:first-child { padding-left: 0; }

.stat-num {
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--fg-3);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.stat-div {
  width: 1px;
  height: 2rem;
  background: var(--border);
}

/* ─── ABOUT ─────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--fg-2);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-weight: 300;
}

.about-text p:last-child { margin-bottom: 0; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.3rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  color: var(--fg-2);
  letter-spacing: 0.04em;
}

/* ─── SKILLS ────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}

.skill-group {
  padding: 1.8rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.skill-group:nth-child(3n) { border-right: none; }
.skill-group:nth-last-child(-n+3) { border-bottom: none; }

.skill-group h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 1rem;
  transition: color 0.2s ease; 
}

.skill-group h3:hover {
  color: var(--fg);
  text-decoration: underline;
  font-weight: 700; /* Makes it bold */
  cursor: pointer;  /* Optional: suggests it's interactive */
}

.skill-group ul li {
  font-size: 0.88rem;
  color: var(--fg-2);
  padding: 0.2rem 0;
  font-weight: 300;
}

/* ─── SERVICES ──────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}

.service-card {
  padding: 2rem 1.8rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}

.service-card:nth-child(3n) { border-right: none; }
.service-card:nth-last-child(-n+3) { border-bottom: none; }
.service-card:hover { background: var(--bg-off); border: 1px solid var(--fg-2); }

.service-icon {
  font-size: 1.1rem;
  color: var(--fg-3);
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 0.82rem;
  color: var(--fg-2);
  line-height: 1.65;
  font-weight: 300;
}

/* ─── PROJECTS ──────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}

.project-card {
  padding: 2rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.project-card:nth-child(2n) { border-right: none; }
.project-card:nth-last-child(-n+2) { border-bottom: none; }
.project-card:hover { background: var(--bg-off); }

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.8rem;
}

.project-header h3 {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.project-link {
  font-size: 1rem;
  color: var(--fg-3);
  transition: color 0.2s, transform 0.2s;
  display: inline-block;
}

.project-link:hover { color: var(--fg); transform: translate(2px, -2px); }

.project-card p {
  font-size: 0.83rem;
  color: var(--fg-2);
  line-height: 1.65;
  font-weight: 300;
  margin-bottom: 1rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  color: var(--fg-3);
  letter-spacing: 0.04em;
  transition: all 0.2s ease;
}

.project-tags span:hover {
  border-color: var(--fg);
  color: var(--fg);
}
/* ─── TIMELINE ──────────────────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--border);
  padding-left: 2rem;
  margin-left: 0.5rem;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.43rem;
  top: 0.5rem;
  width: 7px; height: 7px;
  border: 1px solid var(--border-2);
  background: var(--bg);
  border-radius: 50%;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.5rem;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-3);
  letter-spacing: 0.06em;
}

.timeline-type {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
  color: var(--fg-3);
  letter-spacing: 0.08em;
}

.timeline-body h3 {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.15rem;
}

.timeline-body h4 {
  font-size: 0.82rem;
  color: var(--fg-3);
  font-weight: 400;
  margin-bottom: 0.6rem;
}

.timeline-body p {
  font-size: 0.85rem;
  color: var(--fg-2);
  font-weight: 300;
  line-height: 1.7;
}

/* ─── CERTS ─────────────────────────────────────────── */
.cert-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.cert-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.cert-item:last-child { border-bottom: none; }
.cert-item:hover { background: var(--bg-off); }

.cert-name {
  font-size: 0.88rem;
  font-weight: 400;
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-3);
  letter-spacing: 0.06em;
}

/* ─── ACHIEVEMENTS ──────────────────────────────────── */
.achievements-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.achievement {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--fg-2);
  font-weight: 300;
}

.ach-icon {
  font-family: var(--font-mono);
  color: var(--fg-3);
  flex-shrink: 0;
  padding-top: 0.05rem;
}

/* ─── CONTACT ───────────────────────────────────────── */
#contact { background: var(--fg); }

#contact .section-title { color: rgba(255,255,255,0.4); }

.contact-intro {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.55);
  font-weight: 300;
  margin-bottom: 2.5rem;
  margin-top: -1.5rem;
  max-width: 480px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid rgba(255,255,255,0.1);
}

.contact-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background 0.2s;
  color: #fff;
}

.contact-card:last-child { border-bottom: none; }
.contact-card:hover { background: rgba(255,255,255,0.05); }

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  min-width: 80px;
}

.contact-value {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.75);
  font-weight: 300;
}

/* ─── FOOTER ────────────────────────────────────────── */
footer {
  background: var(--fg);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
}

/* ─── REVEAL ANIMATION ──────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --nav-h: 52px; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 0;
  }

  .nav-links.open { display: flex; }

  .nav-links li { border-bottom: 1px solid var(--border); }
  .nav-links a {
    display: block;
    padding: 1rem 2rem;
    font-size: 0.88rem;
  }
  .nav-links a::after { display: none; }

  section { padding: 4.5rem 0; }

  .hero-name { font-size: clamp(3rem, 14vw, 5rem); }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; padding: 1.5rem 2rem; }
  .stat-div { display: none; }
  .stat { padding: 0; }

  .about-grid { grid-template-columns: 1fr; gap: 2rem; }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .skill-group:nth-child(3n) { border-right: 1px solid var(--border); }
  .skill-group:nth-child(2n) { border-right: none; }
  .skill-group:nth-last-child(-n+3) { border-bottom: 1px solid var(--border); }
  .skill-group:nth-last-child(-n+2) { border-bottom: none; }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-card:nth-child(3n) { border-right: 1px solid var(--border); }
  .service-card:nth-child(2n) { border-right: none; }
  .service-card:nth-last-child(-n+3) { border-bottom: 1px solid var(--border); }
  .service-card:nth-last-child(-n+2) { border-bottom: none; }

  .projects-grid { grid-template-columns: 1fr; }
  .project-card:nth-child(2n) { border-right: none; }
  .project-card { border-bottom: 1px solid var(--border) !important; }
  .project-card:last-child { border-bottom: none !important; }

  .cert-item { flex-direction: column; align-items: flex-start; gap: 0.25rem; }

  .contact-card { flex-direction: column; align-items: flex-start; gap: 0.3rem; }

  .footer-inner { flex-direction: column; gap: 0.4rem; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .skill-group { border-right: none !important; border-bottom: 1px solid var(--border) !important; }
  .skill-group:last-child { border-bottom: none !important; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card { border-right: none !important; border-bottom: 1px solid var(--border) !important; }
  .service-card:last-child { border-bottom: none !important; }
}