/* =========================================================
   Madhu Ghimire — Data Engineer Portfolio
   Design language: ETL pipeline schematic.
   Base: charcoal/slate. Accent: amber (flow), teal (status).
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg: #12151a;
  --bg-raised: #1b1f27;
  --bg-raised-2: #232833;
  --line: #2b3140;
  --text: #edeef0;
  --text-dim: #8b93a1;
  --text-faint: #5c6472;
  --amber: #e8a33d;
  --amber-dim: #e8a33d33;
  --teal: #4fb8b0;
  --teal-dim: #4fb8b033;
  --danger: #d9705c;

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

  --radius: 6px;
  --max-width: 1120px;
}

*{ box-sizing: border-box; margin: 0; padding: 0; }

html{ scroll-behavior: smooth; }

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

body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 48px 48px;
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }
ul{ list-style: none; }

.wrap{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.eyebrow::before{
  content: '';
  width: 7px; height: 7px;
  background: var(--amber);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--amber);
  flex-shrink: 0;
}

/* ---------- Nav ---------- */
.nav{
  position: sticky; top: 0; z-index: 100;
  background: rgba(18,21,26,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap{
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.nav-logo{
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}
.nav-logo span{ color: var(--amber); }
.nav-links{ display: flex; gap: 32px; align-items: center; }
.nav-links a{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  transition: color 0.15s;
  position: relative;
}
.nav-links a:hover{ color: var(--text); }
.nav-links a.resume-link{
  color: var(--bg);
  background: var(--amber);
  padding: 8px 16px;
  border-radius: var(--radius);
  font-weight: 600;
}
.nav-links a.resume-link:hover{ background: #f0b158; color: var(--bg); }
.nav-toggle{ display: none; }

/* ---------- Hero ---------- */
.hero{
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--line);
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero h1{
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.4vw, 3.6rem);
  line-height: 1.08;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero h1 .accent{ color: var(--amber); }
.hero-sub{
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 46ch;
  margin-bottom: 32px;
}
.hero-sub strong{ color: var(--text); font-weight: 600; }
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.btn{
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 500;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary{ background: var(--amber); color: var(--bg); border-color: var(--amber); }
.btn-primary:hover{ background: #f0b158; transform: translateY(-1px); }
.btn-ghost{ color: var(--text); }
.btn-ghost:hover{ border-color: var(--text-dim); background: var(--bg-raised); }

.hero-stats{ display: flex; gap: 36px; }
.stat b{
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--amber);
}
.stat span{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Pipeline diagram (signature element) ---------- */
.pipeline{
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  font-family: var(--font-mono);
}
.pipeline-head{
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px; font-size: 11.5px; color: var(--text-faint);
}
.pipeline-head .dots{ display: flex; gap: 6px; }
.pipeline-head .dots span{ width: 8px; height: 8px; border-radius: 50%; background: var(--line); }

.pipeline-stage{
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--bg-raised-2);
  margin-bottom: 8px;
  font-size: 12.5px;
  color: var(--text-dim);
  border-left: 2px solid var(--line);
}
.pipeline-stage.active{
  border-left-color: var(--amber);
  color: var(--text);
}
.pipeline-stage .tag{
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--teal-dim);
  color: var(--teal);
  margin-left: auto;
  text-transform: uppercase;
}
.pipeline-arrow{
  text-align: center;
  color: var(--text-faint);
  font-size: 12px;
  margin: 2px 0;
}
.pipeline-output{
  margin-top: 14px;
  padding: 14px;
  border: 1px dashed var(--amber-dim);
  border-radius: var(--radius);
  font-size: 12.5px;
  color: var(--amber);
}
.pipeline-output .cursor{
  display: inline-block; width: 7px; height: 14px; background: var(--amber);
  animation: blink 1.1s steps(2) infinite; vertical-align: text-bottom; margin-left: 2px;
}
@keyframes blink{ 50%{ opacity: 0; } }

/* ---------- Sections ---------- */
section{ padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-head{ margin-bottom: 48px; max-width: 62ch; }
.section-head h2{
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.6vw, 2.2rem);
  font-weight: 700;
}
.section-head p{ color: var(--text-dim); margin-top: 10px; }

/* ---------- About ---------- */
.about-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.about-text p{ color: var(--text-dim); margin-bottom: 16px; }
.about-text strong{ color: var(--text); }
.about-facts{ display: grid; gap: 14px; }
.fact{
  display: flex; justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  font-size: 14px;
}
.fact .k{ font-family: var(--font-mono); color: var(--text-faint); font-size: 12px; text-transform: uppercase; }
.fact .v{ color: var(--text); text-align: right; }

/* ---------- Skills ---------- */
.skills-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.skill-card{
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.skill-card h3{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}
.skill-tags{ display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tags span{
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--bg-raised-2);
  color: var(--text-dim);
  border: 1px solid var(--line);
}

/* ---------- Projects ---------- */
.projects-list{ display: grid; gap: 22px; }
.project-card{
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 26px;
}
.project-num{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-faint);
  padding-top: 4px;
}
.project-card h3{
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 4px;
}
.project-role{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}
.project-card p{ color: var(--text-dim); margin-bottom: 16px; max-width: 70ch; }
.project-meta{ display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.project-meta span{
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 4px 9px;
  border-radius: 4px;
  background: var(--teal-dim);
  color: var(--teal);
}
.project-links{ display: flex; gap: 16px; }
.project-links a{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text);
  border-bottom: 1px solid var(--text-faint);
  padding-bottom: 2px;
}
.project-links a:hover{ color: var(--amber); border-color: var(--amber); }

/* ---------- Blog preview / list ---------- */
.blog-grid{ display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.post-card{
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s;
}
.post-card:hover{ border-color: var(--amber-dim); }
.post-date{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.post-card h3{ font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 10px; }
.post-card p{ color: var(--text-dim); font-size: 14px; flex-grow: 1; }
.post-read{ font-family: var(--font-mono); font-size: 12.5px; color: var(--amber); margin-top: 16px; }
.empty-state{
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 13.5px;
  padding: 40px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  grid-column: 1 / -1;
}

/* ---------- Contact ---------- */
.contact{ text-align: left; }
.contact-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-links{ display: grid; gap: 14px; }
.contact-links a{
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all 0.15s;
}
.contact-links a:hover{ color: var(--text); border-color: var(--amber-dim); background: var(--bg-raised); }
.contact-links a .arrow{ margin-left: auto; color: var(--text-faint); }

/* ---------- Footer ---------- */
footer{ padding: 32px 0; }
footer .wrap{ display: flex; justify-content: space-between; align-items: center; }
footer p{ font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }

/* ---------- Post page ---------- */
.post-hero{ padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.post-hero h1{ font-family: var(--font-display); font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin: 14px 0; }
.post-body{ max-width: 72ch; margin: 0 auto; padding: 56px 28px; }
.post-body h2{ font-family: var(--font-display); font-size: 1.4rem; margin: 32px 0 12px; }
.post-body p{ color: var(--text-dim); margin-bottom: 18px; font-size: 1.02rem; }
.post-body code{ font-family: var(--font-mono); background: var(--bg-raised); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
.post-body pre{ background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; overflow-x: auto; margin-bottom: 18px; }
.back-link{ font-family: var(--font-mono); font-size: 12.5px; color: var(--amber); }

/* ---------- Admin ---------- */
.admin-wrap{ max-width: 720px; margin: 0 auto; padding: 64px 28px; }
.admin-wrap h1{ font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 8px; }
.admin-wrap > p{ color: var(--text-dim); margin-bottom: 32px; font-size: 14px; }
.field{ margin-bottom: 20px; }
.field label{
  display: block; font-family: var(--font-mono); font-size: 12px;
  color: var(--text-faint); text-transform: uppercase; margin-bottom: 8px;
}
.field input, .field textarea{
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 14px;
}
.field textarea{ min-height: 260px; resize: vertical; font-family: var(--font-mono); font-size: 13px; line-height: 1.6; }
.field input:focus, .field textarea:focus{ outline: none; border-color: var(--amber); }
.field small{ display: block; margin-top: 6px; color: var(--text-faint); font-size: 12px; }
.admin-status{ font-family: var(--font-mono); font-size: 13px; margin-top: 16px; }
.admin-status.ok{ color: var(--teal); }
.admin-status.err{ color: var(--danger); }
.post-list-admin{ margin-top: 48px; }
.post-row{
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 13px;
}
.post-row button{
  background: none; border: 1px solid var(--danger); color: var(--danger);
  padding: 5px 10px; border-radius: 4px; font-family: var(--font-mono); font-size: 11px; cursor: pointer;
}
.post-row button:hover{ background: var(--danger); color: var(--bg); }

/* ---------- Focus & a11y ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--amber); outline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px){
  .hero-grid, .about-grid, .contact-grid{ grid-template-columns: 1fr; }
  .nav-links{
    position: fixed; top: 68px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start;
    padding: 20px 28px; gap: 20px;
    display: none;
  }
  .nav-links.open{ display: flex; }
  .nav-toggle{
    display: block; background: none; border: 1px solid var(--line);
    color: var(--text); font-family: var(--font-mono); padding: 8px 12px; border-radius: 4px;
  }
  .project-card{ grid-template-columns: 1fr; }
}