/* =========================================================
   TOKENS
   ========================================================= */
:root {
  /* Color */
  --bg: #0B0F14;
  --bg-alt: #0F151C;
  --surface: #131A22;
  --surface-2: #1A222C;
  --border: #232E3A;
  --text: #D7DEE5;
  --text-dim: #8A97A5;
  --text-faint: #5C6875;

  --accent-cyan: #4FD1C5;
  --accent-blue: #58A6FF;
  --accent-amber: #F0A857;
  --accent-green: #3FD07A;
  --accent-red: #F26D6D;

  /* Type */
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --maxw: 1120px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --nav-h: 64px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-family: var(--font-mono); margin: 0; letter-spacing: -0.01em; }

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

/* subtle grid texture on the page */
body {
  background-image:
    radial-gradient(circle at 15% 10%, rgba(79,209,197,0.05), transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(88,166,255,0.05), transparent 40%);
}

/* =========================================================
   NAV — "PIPELINE"
   ========================================================= */
.pipeline-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  height: 100%;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  white-space: nowrap;
}
.nav-logo .bracket { color: var(--accent-cyan); }

.pipeline-stages {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.pipeline-stages a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
  position: relative;
}

.pipeline-stages a:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 50%;
  width: 8px;
  height: 1px;
  background: var(--border);
}

.pipeline-stages a:hover { color: var(--text); background: var(--surface); }

.pipeline-stages a.is-active { color: var(--accent-cyan); }
.pipeline-stages a.is-active .stage-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.stage-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.pipeline-stages a:hover .stage-dot {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 28px;
}

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

/* Terminal window */
.terminal-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.terminal-dots {
  display: inline-flex;
  gap: 6px;
}
.terminal-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--text-faint);
}
.terminal-dots span:nth-child(1) { background: #F26D6D; }
.terminal-dots span:nth-child(2) { background: #F0A857; }
.terminal-dots span:nth-child(3) { background: #3FD07A; }

.terminal-path {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

.terminal-body {
  padding: 22px 20px 26px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  min-height: 190px;
}

.term-line { margin: 0; color: var(--text); }
.prompt { color: var(--accent-green); margin-right: 6px; }
.typed-cmd { color: var(--accent-cyan); }
.cursor { color: var(--accent-cyan); animation: blink 1s steps(1) infinite; }

@keyframes blink { 50% { opacity: 0; } }

.term-output { margin-top: 16px; }
.term-output p { margin: 6px 0; color: var(--text-dim); }
.term-output .key { color: var(--accent-blue); }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
}
.badge-green { background: rgba(63,208,122,0.12); color: var(--accent-green); }

/* Hero text */
.eyebrow {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 0.82rem;
  margin: 0 0 14px;
  letter-spacing: 0.02em;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 6px;
}

.hero-role {
  font-family: var(--font-mono);
  color: var(--accent-blue);
  font-size: 1.02rem;
  margin: 0 0 18px;
}

.hero-desc {
  color: var(--text-dim);
  font-size: 1rem;
  max-width: 46ch;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  display: inline-flex;
  align-items: center;
}

.btn-primary {
  background: var(--accent-cyan);
  color: #06231F;
  font-weight: 700;
}
.btn-primary:hover { transform: translateY(-2px); }

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.hero-badges {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.ci-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ci-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.ci-pass { background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); }
.ci-warn { background: var(--accent-amber); box-shadow: 0 0 6px var(--accent-amber); }

.hero-scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 48px auto 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  letter-spacing: 0.12em;
}
.scroll-line {
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--text-faint), transparent);
}

/* =========================================================
   SECTIONS — shared
   ========================================================= */
.section { padding: 100px 0; border-top: 1px solid var(--border); }
.section-alt { background: var(--bg-alt); }

.stage-label {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  margin: 0 0 10px;
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin-bottom: 10px;
}

.section-sub {
  color: var(--text-dim);
  margin: 0 0 44px;
  max-width: 56ch;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.about-text p { color: var(--text-dim); margin: 0 0 16px; }

.mini-stats {
  display: flex;
  gap: 36px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.mini-stat { display: flex; flex-direction: column; }
.mini-stat-num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent-cyan);
}
.mini-stat-label {
  font-size: 0.8rem;
  color: var(--text-faint);
}

.about-log, .contact-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.log-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

.log-body {
  margin: 0;
  padding: 20px 18px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-dim);
  overflow-x: auto;
  white-space: pre;
}
.log-time { color: var(--accent-blue); }

/* =========================================================
   SKILLS
   ========================================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.skill-card:hover { border-color: var(--accent-cyan); transform: translateY(-3px); }

.skill-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.skill-card-head h3 { font-size: 0.92rem; font-family: var(--font-sans); font-weight: 600; }

.skill-icon {
  width: 30px; height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: rgba(79,209,197,0.1);
  color: var(--accent-cyan);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 9px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-dim);
  border: 1px solid var(--border);
}
.tags-sm .tag { font-size: 0.68rem; }

/* =========================================================
   PROJECTS
   ========================================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.project-card:hover { border-color: var(--accent-blue); transform: translateY(-3px); }

.project-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.repo-icon { color: var(--accent-cyan); font-size: 1.1rem; }

.project-status {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 3px 9px;
  border-radius: 10px;
  letter-spacing: 0.03em;
}
.status-deployed { background: rgba(63,208,122,0.12); color: var(--accent-green); }
.status-progress { background: rgba(240,168,87,0.14); color: var(--accent-amber); }

.project-card h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
}
.project-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0; }

.project-links { display: flex; gap: 16px; margin-top: 4px; }
.proj-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-blue);
}
.proj-link:hover { color: var(--accent-cyan); }

/* =========================================================
   TIMELINE
   ========================================================= */
.timeline {
  position: relative;
  max-width: 720px;
  padding-left: 28px;
  border-left: 1px solid var(--border);
}

.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 0 4px rgba(79,209,197,0.15);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.timeline-content h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  margin: 6px 0 8px;
}
.timeline-content p { color: var(--text-dim); margin: 0; font-size: 0.92rem; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.contact-links { padding: 8px; }
.contact-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: background 0.15s ease;
}
.contact-row:hover { background: var(--surface-2); }
.contact-key { color: var(--text-faint); }
.contact-val { color: var(--accent-blue); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.contact-form label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin: 14px 0 6px;
}
.contact-form label:first-child { margin-top: 0; }

.contact-form input,
.contact-form textarea {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 12px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.contact-form .btn { margin-top: 20px; align-self: flex-start; }

.form-status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green);
  min-height: 1.2em;
  margin: 10px 0 0;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-faint);
}
.footer-badge {
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-badge strong { color: var(--text-dim); }

/* =========================================================
   SCROLL-REVEAL
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   ACCESSIBILITY
   ========================================================= */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

  .pipeline-stages { display: none; }
  .nav-toggle { display: flex; }

  .pipeline-nav.nav-open .pipeline-stages {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 10px 20px 20px;
    gap: 2px;
  }
  .pipeline-nav.nav-open .pipeline-stages a { padding: 12px 6px; }
}

@media (max-width: 600px) {
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 72px 0; }
  .hero { padding: 48px 20px; }
  .mini-stats { gap: 24px; }
}

@media (max-width: 420px) {
  .skills-grid { grid-template-columns: 1fr; }
}