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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #0d1117;
  color: #c9d1d9;
  min-height: 100vh;
}

/* ── Layout ──────────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  background-color: #0d1117;
  border-right: 1px solid #21262d;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 32px;
}

.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.avatar-placeholder {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background-color: #161b22;
  border: 3px solid #30363d;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  color: #6e7681;
  font-size: 3rem;
}

.avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 80%;
  border: none;
  margin-bottom: 8px;
}

.name {
  font-size: 1.4rem;
  font-weight: 700;
  color: #72ef96;
}

.title {
  font-size: 0.9rem;
  color: #8b949e;
  letter-spacing: 0.03em;
}

.divider {
  width: 40px;
  border: none;
  border-top: 2px solid #72ef96;
  margin: 4px 0;
}

.bio {
  font-size: 0.875rem;
  color: #8b949e;
  line-height: 1.6;
  max-width: 230px;
}

/* Contact list */
.contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: #8b949e;
}

.contact li i {
  font-size: 0.85rem;
  color: #72ef96;
  width: 14px;
}

/* Social icons */
.socials {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}

.socials a {
  color: #72ef96;
  font-size: 1.25rem;
  transition: color 0.2s;
  text-decoration: none;
  display: flex;
  align-items: center;
}

.socials a svg {
  width: 1.25rem;
  height: 1.25rem;
}

.socials a:hover {
  color: #72ef96;
}

/* ── Main ────────────────────────────────────────────────── */
.main {
  padding: 60px 56px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

/* ── Section ─────────────────────────────────────────────── */
.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #72ef96;
  margin-bottom: 10px;
}

.section-rule {
  border: none;
  border-top: 1px solid #21262d;
  margin-bottom: 24px;
}

/* ── Skills ──────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 32px;
}

.skill-label {
  font-size: 0.78rem;
  color: #72ef96;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.skill-label i {
  font-size: 0.8rem;
  color: #72ef96;
}

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

.tag {
  background-color: #161b22;
  border: 1px solid #30363d;
  color: #c9d1d9;
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 999px;
}

/* ── Timeline ────────────────────────────────────────────── */
.timeline {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-left: 16px;
  border-left: 2px solid #21262d;
}

.timeline-item {
  position: relative;
  padding-left: 20px;
}

.timeline-dot {
  position: absolute;
  left: -25px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: #72ef96;
  border: 2px solid #0d1117;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.timeline-header > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.timeline-header strong {
  font-size: 0.95rem;
  color: #e6edf3;
  font-weight: 600;
}

.timeline-date {
  font-size: 0.78rem;
  color: #6e7681;
  white-space: nowrap;
  padding-top: 3px;
}

.timeline-company {
  font-size: 0.82rem;
  font-weight: 500;
  color: #8b949e;
  margin-top: 0;
}

.timeline-bullets {
  list-style: disc;
  padding-left: 18px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-bullets li {
  font-size: 0.8rem;
  color: #8b949e;
  line-height: 1.55;
}

.timeline-bullets.standalone {
  margin-top: 0;
}

.timeline-skills {
  font-size: 0.78rem;
  color: #6e7681;
  margin-top: 8px;
  line-height: 1.5;
}

.timeline-skills strong {
  color: #8b949e;
  font-weight: 600;
}

/* ── Sidebar Nav ─────────────────────────────────────────── */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  margin-top: 8px;
}

.sidebar-nav-link {
  display: block;
  padding: 8px 16px;
  border-radius: 6px;
  color: #8b949e;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
  transition: background-color 0.2s, color 0.2s;
}

.sidebar-nav-link:hover {
  background-color: #161b22;
  color: #c9d1d9;
}

.sidebar-nav-link--active {
  background-color: #161b22;
  color: #72ef96;
}

/* ── Content Sub-Nav ─────────────────────────────────────── */
.content-subnav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid #21262d;
  padding-bottom: 0;
  margin-bottom: -24px;
}

.content-subnav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #8b949e;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s;
}

.content-subnav-link:hover {
  color: #c9d1d9;
}

.content-subnav-link--active {
  color: #72ef96;
  border-bottom-color: #72ef96;
}

.content-subnav-link i {
  font-size: 0.8rem;
}

/* ── Roadmap ──────────────────────────────────────────────── */
.roadmap-item {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.roadmap-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #e6edf3;
}

.roadmap-title-link {
  color: #e6edf3;
  text-decoration: none;
  transition: color 0.2s;
}

.roadmap-title-link:hover {
  color: #72ef96;
}

.roadmap-iframe-wrapper {
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #21262d;
  overflow: hidden;
}

.roadmap-iframe-wrapper iframe {
  display: block;
  background: #ffffff;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid #21262d;
    padding: 40px 24px;
  }

  .main {
    padding: 40px 24px;
  }

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