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

:root {
  --bg:        #0d0c0e;
  --bg2:       #13111a;
  --surface:   #1c1828;
  --border:    #2a2440;
  --accent:    #b48be4;
  --accent2:   #7c5cbf;
  --text:      #f0ecfa;
  --muted:     #8b7aaa;
  --serif:     'Playfair Display', Georgia, serif;
  --sans:      'Inter', system-ui, sans-serif;
  --radius:    12px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  opacity: 0;
  animation: pageIn 0.4s ease forwards;
}

@keyframes pageIn {
  to { opacity: 1; }
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Typography ──────────────────────────────── */
h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  margin-top: 0.5rem;
  margin-bottom: 2.5rem;
}

h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
}

h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

p { color: var(--muted); max-width: 65ch; }

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

/* ── Nav ─────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  transition: background var(--transition), border-bottom var(--transition);
}

#nav.scrolled {
  background: rgba(13, 12, 14, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--muted);
  transition: color var(--transition);
  position: relative;
}

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

.nav-links a.active {
  color: var(--text);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}

.nav-links a.nav-cta {
  background: var(--accent2);
  color: var(--text);
  padding: 0.45rem 1.1rem;
  border-radius: 100px;
  font-weight: 500;
  transition: background var(--transition), transform var(--transition);
}

.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta.active { background: var(--accent); }
.nav-links a.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: var(--transition);
}

/* ── Hero (index only) ───────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 6rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-tag {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  max-width: none;
}

#hero h1 {
  font-family: var(--serif);
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
}

#hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--muted);
  max-width: 50ch;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 3rem;
  left: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-line {
  width: 40px;
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--accent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine { to { left: 100%; } }

/* ── Page Hero (inner pages) ─────────────────── */
.page-hero {
  padding: 10rem 0 5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.back-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
  transition: color var(--transition), gap var(--transition);
}
.back-link:hover { color: var(--accent); gap: 0.75rem; }

.page-hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.page-hero p {
  font-size: 1.1rem;
  margin-top: 1.25rem;
  max-width: 55ch;
}

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary { background: var(--accent); color: #0d0c0e; }
.btn-primary:hover {
  background: #c9a8f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(180, 139, 228, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ── Sections ────────────────────────────────── */
section { padding: 7rem 0; }

/* ── Stats strip ─────────────────────────────── */
.stats-strip {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}

.stat-item {
  flex: 1;
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border);
  text-align: center;
}
.stat-item:last-child { border-right: none; }

.stat-num {
  display: block;
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── Featured project card ───────────────────── */
.featured-section {
  padding: 7rem 0;
  background: var(--bg2);
}

.featured-card {
  border: 1px solid var(--accent2);
  border-radius: 16px;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg2) 100%);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
  transition: transform var(--transition), box-shadow var(--transition);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(124, 92, 191, 0.2);
}

.featured-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(180, 139, 228, 0.12);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  width: fit-content;
  margin-bottom: 1.25rem;
}

.featured-card h3 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.featured-card > div > p {
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.featured-tags span {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
}

.featured-card .featured-arrow {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 1.25rem;
  transition: all var(--transition);
  flex-shrink: 0;
  margin-top: 0.5rem;
}
.featured-card:hover .featured-arrow {
  border-color: var(--accent);
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ── Other work grid (index) ─────────────────── */
.other-work-section { padding: 7rem 0; }

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 0;
}

.work-card {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.work-card:hover {
  border-color: var(--accent2);
  transform: translateY(-3px);
}

.work-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.work-card-date {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.work-card-role {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.work-card h3 { font-size: 1.1rem; }

.work-card p {
  font-size: 0.875rem;
  max-width: none;
}

.work-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.work-card-tags span {
  font-size: 0.68rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.2rem 0.55rem;
  border-radius: 100px;
}

/* ── CTA strip ───────────────────────────────── */
.cta-strip {
  padding: 7rem 0;
  background: var(--bg2);
  text-align: center;
}

.cta-strip h2 { margin-bottom: 1rem; }
.cta-strip p { margin: 0 auto 2.5rem; text-align: center; }
.cta-strip .cta-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ── Timeline (work page) ────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
  transition: border-color var(--transition), transform var(--transition);
}

.timeline-item:hover {
  border-color: var(--accent2);
  transform: translateX(4px);
}

.timeline-item.featured {
  border-color: var(--accent2);
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg2) 100%);
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.2rem;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.4;
}

.timeline-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(180, 139, 228, 0.12);
  padding: 0.2rem 0.55rem;
  border-radius: 100px;
  width: fit-content;
}

.timeline-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.timeline-org {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
}

.timeline-body p {
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.timeline-highlights {
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.timeline-highlights li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 1rem;
  position: relative;
}

.timeline-highlights li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent2);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.timeline-tags span {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
}

/* ── About (about page) ──────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-text h2 { margin-bottom: 1.5rem; }
.about-text p { margin-bottom: 1.25rem; }

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 4rem;
}

.stat { border-left: 2px solid var(--accent); padding-left: 1.5rem; }

/* ── Education ───────────────────────────────── */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.edu-card {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color var(--transition), transform var(--transition);
}

.edu-card:hover {
  border-color: var(--accent2);
  transform: translateY(-3px);
}

.edu-card.active { border-color: var(--accent2); }

.edu-year {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.edu-content h3 { margin-bottom: 0.35rem; font-size: 1.05rem; }

.edu-school {
  display: block;
  font-size: 0.8rem;
  color: var(--accent2);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.edu-content p { font-size: 0.875rem; max-width: none; }

/* ── Skills ──────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skill-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.lang-list { display: flex; flex-direction: column; gap: 1.25rem; }

.lang-item { }

.lang-name {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
}

.lang-level { color: var(--muted); font-size: 0.8rem; }

.lang-bar {
  height: 3px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
}

.lang-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 100px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s ease 0.3s;
}

.lang-fill.visible { transform: scaleX(1); }

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.cert-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.cert-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(180, 139, 228, 0.15);
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Contact ─────────────────────────────────── */
.contact-intro {
  padding: 5rem 0;
}

.contact-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.open-to-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.open-to-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.open-to-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.contact-cards-section {
  padding: 5rem 0 7rem;
  background: var(--bg2);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  min-width: 240px;
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(180, 139, 228, 0.18);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(180, 139, 228, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.contact-value {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

/* ── Footer ──────────────────────────────────── */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
}

footer p {
  font-size: 0.8rem;
  max-width: none;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text); }

/* ── Fade-in ─────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-stats { flex-direction: row; flex-wrap: wrap; padding-top: 0; }
  .skills-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .edu-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.75rem; }
  .contact-intro-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats-strip { flex-wrap: wrap; }
  .stat-item { flex: 1 1 30%; }
  .featured-card { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  #nav { padding: 1rem 1.25rem; }
  #hero { padding: 7rem 1.25rem 5rem; }
  .container { padding: 0 1.25rem; }
  section { padding: 5rem 0; }
  .page-hero { padding: 8rem 0 4rem; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 99;
  }
  .nav-links.open a { font-size: 1.25rem; }
  .hamburger { display: flex; z-index: 101; }

  .skills-grid { grid-template-columns: 1fr; }
  .contact-links { flex-direction: column; align-items: stretch; }
  .contact-card { min-width: unset; }
  .hero-scroll { display: none; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-links { gap: 1.25rem; }

  .featured-card { padding: 1.75rem; }
  .stat-item { flex: 1 1 45%; }
}