/* ============================================================
   Eljano Hita — Portfolio
   ============================================================ */

:root {
  --bg: #0b0e14;
  --bg-alt: #10141c;
  --surface: #151a24;
  --surface-2: #1b212d;
  --border: #262d3a;
  --text: #e6e9ef;
  --text-dim: #9aa4b2;
  --text-faint: #6b7382;
  --accent: #5eead4;
  --accent-2: #58a6ff;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 10px;
  --max-width: 1100px;
  --shadow-lg: 0 20px 60px -20px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

h1, h2, h3, h4 { line-height: 1.2; margin: 0; }

.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(11, 14, 20, 0.75);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}
.brand-prompt { color: var(--accent); }
.brand-caret { color: var(--text-dim); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.nav-link { color: var(--text-dim); transition: color .15s ease; }
.nav-link:hover { color: var(--accent); }
.nav-num { color: var(--accent); margin-right: 4px; }

.nav-cv { font-family: var(--sans); margin-left: 8px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #04120f;
}
.btn-primary:hover { background: #7ff2e0; }

.btn-outline {
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-ghost {
  border-color: var(--accent);
  color: var(--accent);
  padding: 8px 16px;
  font-size: 0.85rem;
}
.btn-ghost:hover { background: var(--accent-soft); }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 96px 24px 80px;
  min-height: 88vh;
}

.hero-greeting {
  font-family: var(--mono);
  color: var(--accent);
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.hero-name {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.hero-role {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--text-dim);
  font-weight: 500;
  margin-bottom: 24px;
  min-height: 1.6em;
}
.typed-role { color: var(--accent-2); }
.cursor {
  display: inline-block;
  width: 2px;
  background: var(--accent-2);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-dim);
  max-width: 52ch;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 14px; margin-bottom: 40px; flex-wrap: wrap; }

.hero-social { display: flex; gap: 18px; list-style: none; padding: 0; margin: 0; }
.hero-social a {
  color: var(--text-dim);
  display: inline-flex;
  padding: 6px;
  border-radius: 6px;
  transition: color .15s ease, background .15s ease;
}
.hero-social a:hover { color: var(--accent); background: var(--surface); }

/* ---------- Hero terminal ---------- */
.term-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot-r { background: #ff5f56; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #27c93f; }
.term-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}
.term-body {
  padding: 20px;
  font-family: var(--mono);
  font-size: 0.83rem;
  line-height: 1.9;
}
.term-body p { margin: 0; }
.prompt { color: var(--accent); margin-right: 8px; }
.out { color: var(--text-dim); padding-left: 18px; margin-bottom: 8px !important; }
.out.ok { color: var(--accent); }
.term-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--accent);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

.section-heading {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  margin-bottom: 44px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.section-num {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1rem;
  font-weight: 600;
}

.subheading {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 64px 0 28px;
  color: var(--text);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
}
.about-text p { color: var(--text-dim); margin-bottom: 18px; }

.about-facts {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 0;
  align-self: start;
}
.fact { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.fact:last-child { border-bottom: none; }
.fact dt { color: var(--text-faint); font-size: 0.85rem; font-family: var(--mono); }
.fact dd { margin: 0; font-weight: 600; text-align: right; }
.fact dd a:hover { color: var(--accent); }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 32px;
  border-left: 1px solid var(--border);
}
.timeline-item { position: relative; padding-bottom: 44px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.timeline-date {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.82rem;
  margin-bottom: 6px;
}
.timeline-content h3 { font-size: 1.15rem; margin-bottom: 4px; }
.timeline-company { display: block; color: var(--accent-2); font-size: 0.9rem; margin-bottom: 10px; }
.timeline-content p { color: var(--text-dim); margin: 0; max-width: 68ch; }

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.edu-date { font-family: var(--mono); color: var(--accent); font-size: 0.78rem; }
.edu-card h4 { margin: 10px 0 6px; font-size: 1rem; }
.edu-org { color: var(--text-faint); font-size: 0.85rem; }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}
.skill-ring { position: relative; width: 110px; height: 110px; margin: 0 auto 16px; }
.skill-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg, .ring-fg {
  fill: none;
  stroke-width: 8;
}
.ring-bg { stroke: var(--surface-2); }
.ring-fg {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-dasharray: 264;
  stroke-dashoffset: 264;
  transition: stroke-dashoffset 1.2s ease;
}
.skill-pct {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.15rem;
}
.skill-card h4 { font-size: 1rem; margin-bottom: 6px; }
.skill-sub { color: var(--text-faint); font-size: 0.82rem; margin: 0; }

.skill-bars { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 40px; }
.skill-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  margin-bottom: 8px;
  font-family: var(--mono);
}
.skill-bar-label span:last-child { color: var(--accent); }
.skill-bar-track {
  background: var(--surface-2);
  border-radius: 6px;
  height: 8px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  border-radius: 6px;
  transition: width 1.2s ease;
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .15s ease, transform .15s ease;
}
.service-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.service-card h4 { font-size: 1rem; margin-bottom: 10px; }
.service-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0; }

/* ---------- 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);
  padding: 24px;
}
.project-card summary {
  cursor: pointer;
  list-style: none;
  position: relative;
}
.project-card summary::-webkit-details-marker { display: none; }
.project-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.project-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.project-sub { color: var(--text-faint); font-size: 0.88rem; margin: 0 0 10px; }
.project-expand {
  display: inline-block;
  color: var(--accent-2);
  font-size: 0.85rem;
  font-weight: 600;
}
.project-card[open] .project-expand { display: none; }
.project-card p:not(.project-sub) {
  color: var(--text-dim);
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ---------- Contact ---------- */
.contact-lede { color: var(--text-dim); max-width: 60ch; margin-bottom: 40px; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color .15s ease, transform .15s ease;
}
.contact-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 14px;
}
.contact-card h4 { font-size: 0.95rem; margin-bottom: 6px; }
.contact-card p { color: var(--text-dim); font-size: 0.85rem; margin: 0; word-break: break-word; }
.contact-location { color: var(--text-faint); font-family: var(--mono); font-size: 0.85rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-faint);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}
.back-top { color: var(--text-dim); font-family: var(--mono); }
.back-top:hover { color: var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .hero-terminal { order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .edu-grid, .skills-grid, .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .site-nav {
    position: fixed;
    top: 64px;
    right: 0;
    height: calc(100vh - 64px);
    width: 78vw;
    max-width: 320px;
    background: var(--surface);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 28px;
    gap: 24px;
    font-size: 1rem;
    transform: translateX(100%);
    transition: transform .25s ease;
  }
  .site-nav.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .projects-grid { grid-template-columns: 1fr; }
  .edu-grid, .skills-grid, .services-grid, .contact-grid { grid-template-columns: 1fr; }
  .skill-bars { grid-template-columns: 1fr; }
  .hero { padding-top: 32px; }
}