/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --bg: #0B0C0E;
  --bg-panel: #131518;
  --bg-panel-alt: #1A1D21;
  --border: #26292E;
  --border-soft: #1D2024;
  --text: #ECEEF1;
  --text-dim: #93999f;
  --text-faint: #5C6169;
  --teal: #34D399;
  --teal-dim: rgba(52,211,153,0.15);
  --amber: #FBBF24;
  --amber-dim: rgba(251,191,36,0.15);

  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius: 10px;
  --max-width: 1080px;
  --transition: 200ms cubic-bezier(.4,0,.2,1);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0; background: var(--bg); color: var(--text);
  font-family: var(--font-body); font-size: 16px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.mono{ font-family: var(--font-mono); }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }

.skip-link{
  position: absolute; left: -999px; top: 0; background: var(--teal); color: #06201C;
  padding: 10px 16px; z-index: 300; border-radius: 0 0 6px 0; font-family: var(--font-mono); font-size: 13px;
}
.skip-link:focus{ left: 0; }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position: sticky; top:0; z-index: 100;
  background: rgba(11,12,14,0.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner{ max-width: var(--max-width); margin: 0 auto; padding: 14px 20px; display:flex; align-items:center; justify-content:space-between; }
.nav-logo{ font-size: 14px; color: var(--teal); font-weight: 600; }
.nav-links{ display:flex; align-items:center; gap: 24px; }
.nav-links a{ font-family: var(--font-mono); font-size: 13px; color: var(--text-dim); transition: color var(--transition); position: relative; padding: 4px 0; }
.nav-links a:hover{ color: var(--text); }
.nav-links a:not(.btn)::after{ content:''; position:absolute; left:0; bottom:-4px; width:0; height:1px; background: var(--teal); transition: width var(--transition); }
.nav-links a:not(.btn):hover::after{ width:100%; }
.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding: 8px; }
.nav-toggle span{ width:20px; height:2px; background: var(--text); display:block; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
  padding: 10px 18px; border-radius: 6px; border: 1px solid transparent;
  cursor: pointer; display:inline-flex; align-items:center; gap:8px;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn-primary{ background: var(--teal); color: #06201C; }
.btn-primary:hover{ background: #5EEAD4; }
.btn-outline{ border-color: var(--border); color: var(--text); }
.btn-outline:hover{ border-color: var(--teal); color: var(--teal); }
.btn-ghost{ background: transparent; border-color: var(--border); color: var(--text-dim); }
.btn-ghost:hover{ border-color: var(--teal); color: var(--teal); }

/* ============================================================
   HERO
   ============================================================ */
.hero{ padding: 64px 20px 56px; }
.hero-inner{ max-width: var(--max-width); margin: 0 auto; }

.terminal{
  display: block; background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin: 0 0 28px; max-width: 620px;
  font-size: 13px; line-height: 1.8; color: var(--teal);
}
.terminal-line{ display:block; color: var(--text-dim); }
.terminal-line:nth-child(2), .terminal-line:nth-child(4){ color: var(--teal); }
.cursor{ display:inline-block; width: 7px; height: 13px; background: var(--teal); vertical-align: middle; margin-left: 2px; animation: blink 1.1s step-end infinite; }
@keyframes blink{ 50%{ opacity: 0; } }

.eyebrow{ font-size: 13px; color: var(--text-dim); display:flex; align-items:center; gap:8px; margin: 0 0 14px; }
.status-dot{ width: 8px; height: 8px; border-radius: 50%; background: var(--teal); animation: pulse-dot 2s ease-out infinite; }
@keyframes pulse-dot{
  0%{ box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
  70%{ box-shadow: 0 0 0 8px rgba(52,211,153,0); }
  100%{ box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}

.hero-name{
  font-weight: 800; letter-spacing: -0.015em; font-size: clamp(1.9rem, 4.6vw, 3rem);
  margin: 0 0 14px; line-height: 1.15; max-width: 820px;
}
.hero-tagline{ font-size: 16.5px; color: var(--text-dim); max-width: 560px; margin: 0 0 28px; }
.hero-actions{ display:flex; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   SECTIONS
   ============================================================ */
.section{ padding: 72px 20px; }
.section-alt{ background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015), transparent); }
.section-inner{ max-width: var(--max-width); margin: 0 auto; }
.section-eyebrow{ color: var(--amber); font-size: 12px; letter-spacing: 0.06em; margin: 0 0 10px; }
.section-title{ font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -0.01em; margin: 0 0 14px; }
.section-sub{ color: var(--text-dim); max-width: 620px; margin: 0 0 38px; font-size: 15px; }

/* progressive-enhancement reveal: fully visible by default (no-JS safe) */
.reveal{ opacity: 1; transform: none; }
html.js .reveal{ opacity: 0; transform: translateY(18px); transition: opacity 600ms ease, transform 600ms ease; }
html.js .reveal.in-view{ opacity: 1; transform: translateY(0); }

/* ============================================================
   ABOUT
   ============================================================ */
.about-content{ max-width: 680px; font-size: 16.5px; color: var(--text-dim); }
.about-content p{ margin: 0 0 16px; }
.about-content strong{ color: var(--text); font-weight: 600; }

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline{ position: relative; padding-left: 40px; }
.timeline-track{ position: absolute; left: 12px; top: 6px; bottom: 6px; width: 2px; background: var(--border); overflow: hidden; }
.timeline-track .packet{
  position: absolute; left: -3px; width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 10px 2px rgba(52,211,153,0.6);
  top: -20px; animation: flow-down 3.2s linear infinite; opacity: 0;
}
html.js .timeline-track .packet{ opacity: 1; }
.timeline-track .packet:nth-child(2){ animation-delay: 1.05s; background: var(--amber); box-shadow: 0 0 10px 2px rgba(251,191,36,0.5); }
.timeline-track .packet:nth-child(3){ animation-delay: 2.1s; }
@keyframes flow-down{
  from{ transform: translateY(0); opacity: 0; }
  8%{ opacity: 1; } 92%{ opacity: 1; }
  to{ transform: translateY(var(--track-h, 420px)); opacity: 0; }
}

.exp-card{ background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 20px; transition: border-color var(--transition); }
.exp-card:hover{ border-color: rgba(52,211,153,0.35); }
.exp-head{ display:flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.exp-role{ font-size: 17px; font-weight: 700; margin: 0; }
.exp-dates{ font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); white-space: nowrap; }
.exp-company{ color: var(--teal); font-family: var(--font-mono); font-size: 13px; margin: 0 0 3px; }
.exp-location{ color: var(--text-faint); font-size: 12.5px; margin: 0 0 14px; }
.exp-tags{ display:flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; }
.tag{ font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); border: 1px solid var(--border); border-radius: 4px; padding: 3px 8px; background: var(--bg-panel-alt); }
.exp-bullets{ padding-left: 18px; list-style: disc; color: var(--text-dim); font-size: 14px; }
.exp-bullets li{ margin-bottom: 7px; }
.exp-bullets li::marker{ color: var(--teal); }

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.skill-group{ background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: border-color var(--transition); }
.skill-group:hover{ border-color: rgba(52,211,153,0.3); }
.skill-group-title{ font-family: var(--font-mono); font-size: 11.5px; color: var(--amber); letter-spacing: 0.05em; margin: 0 0 12px; }
.skill-tags{ display:flex; flex-wrap: wrap; gap: 6px; }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.project-card{ background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; display:flex; flex-direction:column; gap: 12px; transition: border-color var(--transition), transform var(--transition); }
.project-card:hover{ border-color: rgba(52,211,153,0.35); transform: translateY(-2px); }
.project-head{ display:flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.project-title{ font-size: 16px; font-weight: 700; margin: 0; }
.project-status{ font-family: var(--font-mono); font-size: 10px; color: var(--teal); border: 1px solid rgba(52,211,153,0.3); background: var(--teal-dim); padding: 3px 8px; border-radius: 20px; white-space: nowrap; }
.project-tags{ display:flex; flex-wrap: wrap; gap: 6px; }
.project-bullets{ padding-left: 16px; list-style: disc; color: var(--text-dim); font-size: 13.5px; flex-grow: 1; }
.project-bullets li{ margin-bottom: 6px; }
.project-link{ font-family: var(--font-mono); font-size: 12.5px; color: var(--teal); }
.project-link:hover{ text-decoration: underline; }

/* ============================================================
   EDUCATION
   ============================================================ */
.edu-list{ display:flex; flex-direction: column; gap: 16px; }
.edu-item{ display:flex; gap: 18px; padding: 18px 22px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); }
.edu-mark{ font-family: var(--font-mono); color: var(--text-faint); font-size: 13px; padding-top: 3px; }
.edu-degree{ font-weight: 700; font-size: 15.5px; margin: 0 0 4px; }
.edu-meta{ font-family: var(--font-mono); color: var(--teal); font-size: 12.5px; margin: 0 0 8px; }
.edu-notes{ padding-left: 16px; list-style: disc; color: var(--text-dim); font-size: 14px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-links{ display:flex; flex-wrap: wrap; gap: 12px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ text-align:center; padding: 30px 20px 40px; color: var(--text-faint); font-size: 12px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 760px){
  .nav-links{
    position: absolute; top: 100%; left:0; right:0; background: var(--bg-panel);
    border-bottom: 1px solid var(--border); flex-direction: column; align-items: flex-start;
    padding: 18px 20px; gap: 16px; display: none;
  }
  .nav-links.open{ display: flex; }
  .nav-toggle{ display:flex; }
  .section{ padding: 56px 18px; }
  .hero{ padding: 44px 18px 40px; }
  .exp-head{ flex-direction: column; }
  .terminal{ font-size: 12px; padding: 16px; }
}

@media (max-width: 420px){
  .hero-name{ font-size: 1.7rem; }
}

a:focus-visible, button:focus-visible{ outline: 2px solid var(--teal); outline-offset: 2px; }