/* ── Animations ───────────────────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes skillIn {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.skill-animate {
  opacity: 0;
}

.skill-animate.visible {
  animation: skillIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes projectIn {
  from {
    opacity: 0;
    transform: translateY(80px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.project-animate {
  opacity: 0;
}

.project-animate.visible {
  animation: projectIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

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

:root {
  --bg:        #080d18;
  --surface:   #0e1421;
  --surface-2: #151d2e;
  --border:    #1e2a3e;
  --accent:    #14b8a6;
  --accent-dim:#0d8a7b;
  --text:      #e8edf5;
  --muted:     #8892a4;
  --faint:     #3d4f6b;
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --radius:    8px;
  --max-w:     1100px;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Nav ──────────────────────────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}

#nav.scrolled {
  background: rgba(8, 13, 24, 0.92);
  backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-logo-suffix {
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  vertical-align: middle;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.2s;
}

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

.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent) !important;
  font-size: 0.875rem;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: rgba(20, 184, 166, 0.1) !important; }

.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: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #080d18;
}

.btn-primary:hover { background: #19d4c0; }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--muted);
}

.btn-ghost:hover { border-color: var(--faint); color: var(--text); }

/* ── Section labels ───────────────────────────────────────────────────────── */
.section-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

#hero .container { position: relative; z-index: 1; }

.hero-label {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

#hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 44px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero two-column layout */
.hero-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 64px;
}

.hero-photo-wrap {
  position: relative;
  flex-shrink: 0;
}

.hero-photo {
  width: 320px;
  height: 380px;
  object-fit: cover;
  border-radius: 16px;
  display: block;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 1px var(--border), 0 32px 64px rgba(0, 0, 0, 0.4);
}

.hero-photo-wrap::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 17px;
  background: linear-gradient(135deg, var(--accent-dim), transparent 60%);
  opacity: 0.4;
  pointer-events: none;
}

/* Hero career panel */
.hero-career {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 220px;
}

.hero-career-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.hero-career-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-career-entry {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.hero-career-entry:last-child { border-bottom: none; }

.hero-career-company {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}

.hero-career-role {
  font-size: 0.75rem;
  color: var(--muted);
}

.hero-career-date {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--faint);
}

.hero-career-download {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  transition: opacity 0.2s;
}

.hero-career-download:hover { opacity: 0.7; }

/* Grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  opacity: 0.4;
}

/* ── About ────────────────────────────────────────────────────────────────── */
#about {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 16px;
}

#about h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 28px;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 20px;
  font-size: 0.975rem;
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.fact:last-child { border-bottom: none; }

.fact-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faint);
}

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

/* ── Skills ───────────────────────────────────────────────────────────────── */
#skills {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

#skills h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.skill-group:hover { border-color: var(--faint); }

.skill-group h3 {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.skill-group ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-group li {
  font-size: 0.875rem;
  color: var(--muted);
  padding-left: 14px;
  position: relative;
}

.skill-group li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

@media (max-width: 768px) {
  .skills-grid { grid-template-columns: 1fr; }
}

/* ── Projects ─────────────────────────────────────────────────────────────── */
#projects {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

#projects h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.project {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  transition: border-color 0.2s;
}

.project:hover { border-color: var(--faint); }

.project-featured {
  grid-column: 1 / -1;
  background: var(--surface-2);
  border-color: var(--accent-dim);
}

.project-featured:hover { border-color: var(--accent); }

.project-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.project-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(20, 184, 166, 0.15);
  color: var(--accent);
}

.project-tag-planned {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}

.project-type {
  font-size: 0.8rem;
  color: var(--faint);
  font-family: var(--mono);
}

.project h3 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.project p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.project-features {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-features li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
}

.project-features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-stack span {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--faint);
}

/* ── CV ───────────────────────────────────────────────────────────────────── */
#cv {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.cv-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 56px;
}

.cv-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.cv-timeline {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  margin-left: 8px;
  margin-bottom: 64px;
}

.cv-entry {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 0 0 40px 32px;
  position: relative;
}

.cv-entry::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
}

.cv-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 2px;
}

.cv-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--faint);
  letter-spacing: 0.05em;
}

.cv-company {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
}

.cv-body h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.cv-body p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.65;
}

.cv-lower {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.cv-section h3 {
  font-size: 0.75rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 20px;
}

.cv-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.cv-item-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.cv-item-sub {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--faint);
}

/* ── Blog ─────────────────────────────────────────────────────────────────── */
#blog {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

#blog h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.blog-grid-single {
  grid-template-columns: 1fr;
  max-width: 720px;
}

.post {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s;
  cursor: default;
}

.post:hover { border-color: var(--faint); }

.post-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.post h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.post p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}

.post-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.post-link {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
  transition: opacity 0.2s;
}

.post-link:hover { opacity: 0.7; }

/* ── Contact ──────────────────────────────────────────────────────────────── */
#contact {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.contact-inner {
  max-width: 560px;
}

#contact h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

#contact p {
  color: var(--muted);
  font-size: 0.975rem;
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  gap: 28px;
  margin-top: 24px;
}

.contact-links a {
  font-size: 0.875rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.contact-links a:hover {
  color: var(--text);
  border-color: var(--faint);
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

footer p {
  font-size: 0.8rem;
  color: var(--faint);
  font-family: var(--mono);
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(8, 13, 24, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
  }

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

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
  }

  .nav-cta {
    margin: 8px 24px;
    text-align: center;
  }

  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-photo { width: 100%; height: 280px; }
  .hero-career { min-width: unset; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .cv-entry { grid-template-columns: 1fr; gap: 8px; }
  .cv-lower { grid-template-columns: 1fr; gap: 32px; }
  .cv-header { flex-direction: column; align-items: flex-start; gap: 20px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: 1; }
  .blog-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
  #hero h1 { font-size: 2.4rem; }
}