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

:root {
  --bg: #fafaf9;
  --surface: #f5f5f3;
  --border: #e8e8e4;
  --text-primary: #1a1a18;
  --text-secondary: #6b6b67;
  --text-muted: #a8a8a2;
  --accent: #2563eb;
  --accent-subtle: rgba(37, 99, 235, 0.08);
  --sidebar-width: 220px;
  --content-max: 640px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Dark theme overrides */
[data-theme="dark"] {
  --bg: #111110;
  --surface: #1a1a18;
  --border: #2a2a27;
  --text-primary: #f0efe9;
  --text-secondary: #a8a8a0;
  --text-muted: #5a5a55;
  --accent: #60a5fa;
  --accent-subtle: rgba(96, 165, 250, 0.10);
}


html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--text-primary);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s ease, opacity 0.2s ease, width 0.2s ease, height 0.2s ease, background 0.2s ease;
  mix-blend-mode: multiply;
}

.cursor-dot.hovered {
  width: 32px;
  height: 32px;
  background: rgba(37, 99, 235, 0.15);
  border: 1.5px solid var(--accent);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  padding: 56px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 100;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  padding: 5px 0;
  transition: color var(--transition);
  position: relative;
  width: fit-content;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--transition);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 500;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.availability {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.availability .dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

/* ── Theme Toggle Button ─────────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  cursor: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform 0.15s ease;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--surface);
  transform: scale(1.08);
}

/* Show sun in dark mode, moon in light mode */
.icon-sun {
  display: none;
}
.icon-moon {
  display: block;
}

[data-theme="dark"] .icon-sun {
  display: block;
  animation: spin-in 0.4s ease;
}
[data-theme="dark"] .icon-moon {
  display: none;
}

@keyframes spin-in {
  from { transform: rotate(-90deg) scale(0.5); opacity: 0; }
  to   { transform: rotate(0deg) scale(1);    opacity: 1; }
}


/* ============================================================
   PAGE TRANSITION
   ============================================================ */
@keyframes page-enter-anim {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-enter {
  animation: page-enter-anim 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 56px 64px 120px;
  max-width: calc(var(--sidebar-width) + var(--content-max) + 128px);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding-bottom: 72px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.section-label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero-name {
  margin-bottom: 40px;
}

.name {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 400;
}

.hero-bio {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: var(--content-max);
}

.bio-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.bio-text a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.bio-text a:hover {
  border-color: var(--accent);
}

/* Inline brand name tags */
.brand-tag {
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 1px dashed var(--border);
  transition: border-color var(--transition), color var(--transition);
}

.brand-tag:hover {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.project-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.project-item {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: padding-left var(--transition);
  position: relative;
  overflow: hidden;
}

.project-item:first-child {
  border-top: 1px solid var(--border);
}

.project-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
  transition: opacity var(--transition), left var(--transition);
  opacity: 0;
}

.project-item:hover {
  padding-left: 14px;
}

.project-item:hover::before {
  opacity: 1;
  left: 0;
}

.project-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 4px;
}

.project-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.project-year {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

.project-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-content {
  max-width: var(--content-max);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.skill-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.skill-list li {
  font-size: 13.5px;
  color: var(--text-secondary);
}

/* ============================================================
   TIMELINE (About page)
   ============================================================ */
.timeline {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.timeline-item {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.timeline-item:first-of-type {
  border-top: 1px solid var(--border);
}

.timeline-year {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
  min-width: 36px;
  padding-top: 2px;
  flex-shrink: 0;
}

.timeline-role {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   WORK EXPERIENCE LIST
   ============================================================ */
.work-list {
  display: flex;
  flex-direction: column;
}

.work-item {
  display: flex;
  align-items: flex-start;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: padding-left var(--transition);
}

.work-item:first-child {
  border-top: 1px solid var(--border);
}

.work-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition), left var(--transition);
}

.work-item:hover {
  padding-left: 14px;
}

.work-item:hover::before {
  opacity: 1;
  left: 0;
}

.work-main {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.work-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.work-role {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.work-company {
  font-size: 14px;
  font-weight: 400;
  color: var(--accent);
}

.work-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.work-period {
  font-size: 12.5px;
  color: var(--text-muted);
}

.work-sep {
  font-size: 12px;
  color: var(--border);
}

.work-location {
  font-size: 12.5px;
  color: var(--text-muted);
}

.work-type {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 7px;
  letter-spacing: 0.02em;
}

/* ============================================================
   CONNECT
   ============================================================ */
.connect-content {
  max-width: var(--content-max);
}

.links {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 32px;
}

.link-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: padding-left var(--transition);
  position: relative;
  overflow: hidden;
}

.link-item:first-child {
  border-top: 1px solid var(--border);
}

.link-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
  transition: opacity var(--transition), left var(--transition);
  opacity: 0;
}

.link-item:hover {
  padding-left: 14px;
}

.link-item:hover::before {
  opacity: 1;
  left: 0;
}

.link-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.link-arrow {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform var(--transition), color var(--transition);
}

.link-item:hover .link-arrow {
  transform: translate(2px, -2px);
  color: var(--accent);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }

  body {
    cursor: auto;
  }

  .cursor-dot {
    display: none;
  }

  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    padding: 24px 24px 12px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
  }

  .nav {
    flex-direction: row;
    gap: 20px;
  }

  .sidebar-footer {
    flex-direction: row;
  }

  .layout {
    flex-direction: column;
  }

  .main {
    margin-left: 0;
    padding: 36px 24px 80px;
  }
}

@media (max-width: 480px) {
  .nav {
    gap: 12px;
  }

  .skills {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}