/* =========================================================
   TOKENS
   ========================================================= */
:root{
  --bg-base: #0B0F14;
  --bg-panel: #131A23;
  --bg-panel-2: #1B2530;
  --border: #25303D;
  --text: #E6EDF3;
  --text-muted: #8B98A5;
  --mint: #4FD1AE;
  --amber: #E8A33D;

  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  --maxw: 1080px;
  --radius: 10px;
}

*{ 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-base);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{ font-family: var(--font-display); margin: 0; color: var(--text); }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }

:focus-visible{
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link{
  position: absolute; left: -999px; top: 0;
  background: var(--mint); color: #06241D; padding: 8px 14px; z-index: 999;
  font-family: var(--font-mono); font-size: 0.85rem;
}
.skip-link:focus{ left: 12px; top: 12px; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--mint);
  text-transform: lowercase;
  margin: 0 0 10px;
}

/* =========================================================
   TOPBAR
   ========================================================= */
.topbar{
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,15,20,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar__inner{
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.brand{
  font-family: var(--font-mono); font-weight: 600; font-size: 1rem;
  color: var(--text);
}
.brand__dot{ color: var(--mint); }
.nav{ display: flex; gap: 28px; }
.nav a{
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-muted);
  transition: color 0.15s ease;
}
.nav a:hover{ color: var(--text); }
.nav__cta{
  font-family: var(--font-mono); font-size: 0.82rem;
  border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 14px; color: var(--text);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.nav__cta:hover{ border-color: var(--mint); color: var(--mint); }

@media (max-width: 760px){
  .nav{ display: none; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position: relative;
  padding: 64px 24px 80px;
  overflow: hidden;
}
.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: 48px 48px;
  opacity: 0.18;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}
.hero__inner{
  position: relative;
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
}
@media (max-width: 880px){
  .hero__inner{ grid-template-columns: 1fr; gap: 36px; }
}

/* terminal */
.terminal{
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
}
.terminal__bar{
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  background: var(--bg-panel-2);
  border-bottom: 1px solid var(--border);
}
.terminal__dots{ display: flex; gap: 6px; }
.terminal__dots span{
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
}
.terminal__title{
  margin-left: 6px;
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted);
}
.terminal__body{
  font-family: var(--font-mono); font-size: 0.85rem;
  padding: 18px 16px 22px;
  min-height: 230px;
}
.terminal__line{
  color: var(--text-muted);
  margin: 0 0 8px;
  white-space: pre-wrap;
}
.terminal__prompt{ color: var(--text); }
.terminal__ok{ color: var(--mint); }
.terminal__final{
  color: var(--mint); font-weight: 600; margin-top: 12px;
}
.cursor{
  display: inline-block; width: 8px; height: 1em;
  background: var(--mint);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink{ 50%{ opacity: 0; } }

/* identity */
.hero__name{
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.hero__role{
  font-family: var(--font-mono); font-size: 0.95rem;
  color: var(--amber); margin-bottom: 16px;
}
.hero__summary{
  color: var(--text-muted); max-width: 480px; margin-bottom: 28px;
}
.hero__actions{ display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }

.btn{
  font-family: var(--font-mono); font-size: 0.85rem;
  padding: 12px 20px; border-radius: 7px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  display: inline-block;
}
.btn--primary{ background: var(--mint); color: #06241D; font-weight: 600; }
.btn--primary:hover{ transform: translateY(-2px); }
.btn--ghost{ border-color: var(--border); color: var(--text); }
.btn--ghost:hover{ border-color: var(--mint); color: var(--mint); }

.hero__links{
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-muted);
}
.hero__links a:hover{ color: var(--mint); }
.dot-sep{ margin: 0 8px; }

/* =========================================================
   SECTIONS (shared)
   ========================================================= */
.section{
  max-width: var(--maxw); margin: 0 auto;
  padding: 80px 24px;
  border-top: 1px solid var(--border);
}
.section--tight{ padding: 52px 24px; }
.section__head{ margin-bottom: 30px; }
.section__head h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }

/* =========================================================
   STACK
   ========================================================= */
.stack-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 28px;
}
@media (max-width: 760px){ .stack-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .stack-grid{ grid-template-columns: 1fr; } }

.stack-group h3{
  font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--text-muted); text-transform: lowercase;
  margin-bottom: 12px; letter-spacing: 0.04em;
}
.pills{ display: flex; flex-wrap: wrap; gap: 8px; }
.pill{
  font-family: var(--font-mono); font-size: 0.8rem;
  border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 11px; color: var(--text);
  background: var(--bg-panel);
}
.pill--sm{ font-size: 0.72rem; padding: 4px 9px; }

/* =========================================================
   EXPERIENCE
   ========================================================= */
.job{
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 30px;
}
.job__head{
  display: flex; justify-content: space-between; gap: 24px;
  flex-wrap: wrap; margin-bottom: 22px;
}
.job__role{ font-size: 1.3rem; margin-bottom: 4px; }
.job__company{ color: var(--text-muted); font-size: 0.92rem; }
.job__product{ color: var(--text-muted); }
.job__meta{
  display: flex; flex-direction: column; align-items: flex-end; gap: 6px;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted);
  white-space: nowrap;
}
.job__status{ color: var(--mint); }
.job__list{
  margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 12px;
  color: var(--text-muted);
}
.job__list li::marker{ color: var(--mint); }
.job__list strong{ color: var(--text); }

/* =========================================================
   PROJECTS — API CARDS
   ========================================================= */
.projects-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: stretch;
}

.api-card{
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
  min-height: 100%;
  overflow: hidden;
  max-width: 920px;
  width: 100%;
  justify-self: center;
}
.api-card:hover{ border-color: var(--mint); transform: translateY(-3px); }

.api-card__head{
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.78rem;
  flex-wrap: wrap;
}
.api-card__method{
  background: rgba(79,209,174,0.12); color: var(--mint);
  padding: 3px 8px; border-radius: 4px; font-weight: 600;
}
.api-card__endpoint{ color: var(--text-muted); flex: 1; min-width: 0; word-break: break-word; }
.api-card__status{ color: var(--mint); font-weight: 600; }

.api-card__body{ padding: 18px 18px 4px; flex: 1; }
.api-card__body h3{ font-size: 1.15rem; margin-bottom: 10px; }
.api-card__sub{ font-size: 0.85rem; color: var(--text-muted); font-weight: 400; }
.api-card__desc{ color: var(--text-muted); margin-bottom: 12px; }
.api-card__points{
  margin: 0 0 14px; padding-left: 18px; color: var(--text-muted);
  display: flex; flex-direction: column; gap: 6px; font-size: 0.92rem;
}
.api-card__points li::marker{ color: var(--amber); }
.api-card__tags{ display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }

.api-card__footer{
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 18px; border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.latency{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); }
.latency strong{ color: var(--amber); }
.api-card__links{ display: flex; gap: 14px; font-family: var(--font-mono); font-size: 0.82rem; }
.api-card__links a:hover{ color: var(--mint); }

.api-card--featured .api-card__head{
  padding: 14px 20px;
}
.api-card--featured .api-card__body{
  padding: 18px 20px 4px;
}
.api-card--featured .api-card__body h3{
  font-size: 1.22rem;
}
.api-card--featured .api-card__desc{
  max-width: 64ch;
}
.api-card--featured .api-card__points{
  max-width: 72ch;
  gap: 6px;
}
.api-card--featured .api-card__footer{
  padding: 12px 20px;
}

/* =========================================================
   EDUCATION
   ========================================================= */
.edu-row h3{ font-size: 1.15rem; margin-bottom: 6px; }
.edu-row p{ color: var(--text-muted); }
.edu-row { margin-bottom: 24px;}

/* =========================================================
   SYSTEM DESIGN
   ========================================================= */
#systemdesign .pills{ gap: 12px;}

/* =========================================================
   CONTACT / FOOTER
   ========================================================= */
.contact{
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
}
.contact__inner{
  max-width: var(--maxw); margin: 0 auto;
  padding: 72px 24px 42px;
}
.contact__title{ font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 12px; }
.contact__sub{ color: var(--text-muted); max-width: 480px; margin-bottom: 28px; }

.contact__cmds{ display: flex; flex-direction: column; gap: 10px; margin-bottom: 38px; }
.cmd{
  font-family: var(--font-mono); font-size: 0.92rem;
  color: var(--text-muted);
  display: inline-flex; gap: 8px; flex-wrap: wrap;
  transition: color 0.15s ease;
}
.cmd:hover{ color: var(--text); }
.cmd__prompt{ color: var(--mint); }
.cmd__flag{ color: var(--amber); }
.cmd__val{ color: var(--text); }

.contact__footnote{
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted);
  border-top: 1px solid var(--border); padding-top: 16px;
}