/* ─── Design Tokens ───────────────────────────────────────────── */
:root {
  --bg:              #06080f;
  --surface:         #0c1220;
  --surface-2:       #111827;
  --text:            #dde5f5;
  --text-2:          #7a8aad;
  --text-3:          #3d4b6a;
  --accent:          #4d79ff;
  --accent-dim:      rgba(77, 121, 255, 0.12);
  --accent-warm:     #c8952e;
  --accent-warm-dim: rgba(200, 149, 46, 0.12);
  --green:           #22c55e;
  --border:          rgba(255, 255, 255, 0.055);
  --border-hover:    rgba(255, 255, 255, 0.1);
  --radius:          12px;
  --shadow:          0 1px 3px rgba(0,0,0,0.5), 0 10px 32px rgba(0,0,0,0.28);
  --font-display:    "Space Grotesk", system-ui, sans-serif;
  --font-body:       "Inter", "Noto Sans SC", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 45% at 15% -5%,  rgba(77,121,255,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 55% 35% at 85% 5%,   rgba(77,121,255,0.04) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 50% 110%,  rgba(200,149,46,0.04) 0%, transparent 60%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ─── Container ───────────────────────────────────────────────── */
.container {
  width: min(1160px, 94vw);
  margin: 0 auto;
}

/* ─── Topbar ──────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(6, 8, 15, 0.82);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
}

.topbar-inner {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 9px var(--accent);
  flex-shrink: 0;
}

.nav {
  display: flex;
  gap: 2px;
}

.nav a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 6px 14px;
  border-radius: 8px;
  transition: color 0.18s, background 0.18s;
  font-weight: 500;
}

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

.btn-available {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  transition: all 0.2s;
  letter-spacing: 0.01em;
  font-family: var(--font-display);
}

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

/* ─── Status Dot ──────────────────────────────────────────────── */
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 7px var(--green);
  flex-shrink: 0;
  animation: blink 2.8s ease infinite;
}

.status-dot.sm {
  width: 6px;
  height: 6px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ─── Page Layout ─────────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: 268px 1fr;
  gap: 32px;
  padding: 36px 0 80px;
  align-items: start;
}

/* ─── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  position: sticky;
  top: 86px;
}

.profile-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 22px;
  box-shadow: var(--shadow);
}

.avatar-wrap {
  border-radius: 9px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 18px;
}

.avatar {
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.profile-info h1 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 4px;
}

.role {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 3px;
}

.org {
  font-size: 0.82rem;
  color: var(--text-2);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 18px 0;
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.meta-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.meta-value {
  font-size: 0.82rem;
  color: var(--text-2);
}

.meta-value.open {
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 5px;
}

.sidebar-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-3);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 10px;
}

.interest-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.interest-list li {
  font-size: 0.85rem;
  color: var(--text-2);
  padding-left: 15px;
  position: relative;
}

.interest-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--text-3);
}

.socials {
  display: flex;
  gap: 7px;
  margin-bottom: 14px;
}

.social-link {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: inline-grid;
  place-items: center;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}

.social-link:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.04);
}

.btn-cv {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.83rem;
  font-weight: 500;
  font-family: var(--font-display);
  transition: all 0.2s;
}

.btn-cv:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.025);
}

/* ─── Main Content ────────────────────────────────────────────── */
.main-content {
  min-width: 0;
}

.section {
  padding-bottom: 4px;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  color: var(--text-3);
  font-weight: 600;
  text-transform: uppercase;
}

.label-line {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-3);
  flex-shrink: 0;
}

.section-divider {
  height: 1px;
  background: var(--border);
  margin: 44px 0;
}

/* ─── About ───────────────────────────────────────────────────── */
.about-block {
  display: grid;
  gap: 24px;
}

.about-headline {
  font-family: var(--font-display);
  font-size: 2.05rem;
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: -0.025em;
  color: var(--text);
}

.about-headline em {
  font-style: normal;
  color: var(--text-2);
}

.hl-blue {
  color: var(--accent);
}

.hl-warm {
  color: var(--accent-warm);
}

.about-body {
  display: grid;
  gap: 13px;
  max-width: 540px;
}

.about-body p {
  color: var(--text-2);
  font-size: 0.9375rem;
  line-height: 1.78;
}

.about-body strong {
  color: var(--text);
  font-weight: 500;
}

/* ─── Projects ────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 11px;
  transition: border-color 0.22s, transform 0.28s cubic-bezier(0.23, 1, 0.32, 1);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-tag {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.11em;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
}

.project-tag.tag-warm {
  background: var(--accent-warm-dim);
  color: var(--accent-warm);
}

.project-year {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-3);
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.012em;
}

.project-card > p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.65;
  flex: 1;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  gap: 8px;
}

.tech-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.tech-tags span {
  font-family: var(--font-display);
  font-size: 0.68rem;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  letter-spacing: 0.03em;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s;
  flex-shrink: 0;
}

.project-link:hover {
  color: var(--text);
}

/* ─── Timeline ────────────────────────────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 104px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item:last-child {
  border-bottom: none;
}

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

.timeline-period {
  font-family: var(--font-display);
  font-size: 0.76rem;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.timeline-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
}

.timeline-badge.current {
  background: rgba(34, 197, 94, 0.1);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.18);
}

.timeline-content h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.012em;
  margin-bottom: 3px;
}

.timeline-role {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 9px;
}

.timeline-content p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ─── Contact ─────────────────────────────────────────────────── */
.contact-section {
  padding-top: 4px;
}

.contact-inner {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 48px 48px 44px;
  position: relative;
  overflow: hidden;
}

.contact-inner::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77,121,255,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.contact-eyebrow {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  color: var(--text-3);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.contact-headline {
  font-family: var(--font-display);
  font-size: 2.3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.18;
  color: var(--text);
  margin-bottom: 14px;
}

.contact-headline em {
  font-style: italic;
  color: var(--accent);
}

.contact-sub {
  color: var(--text-2);
  font-size: 0.9375rem;
  margin-bottom: 30px;
  max-width: 420px;
}

.btn-mail {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--text);
  text-decoration: none;
  padding: 13px 26px;
  border-radius: 9px;
  transition: all 0.22s;
  letter-spacing: 0.01em;
  font-family: var(--font-display);
}

.btn-mail:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(221, 229, 245, 0.15);
}

/* ─── Footer ──────────────────────────────────────────────────── */
.footer {
  padding: 20px 0 30px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 0.76rem;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 240px 1fr;
    gap: 24px;
  }
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }

  .sidebar {
    position: relative;
    top: 0;
  }
}

@media (max-width: 640px) {
  .nav {
    display: none;
  }

  .about-headline {
    font-size: 1.65rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .timeline-item::before {
    display: none;
  }

  .contact-inner {
    padding: 30px 24px 28px;
  }

  .contact-headline {
    font-size: 1.75rem;
  }

  .footer {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}