/* ===========================================================
   caav.me — resume
   Concept: engineering drawing / server rack elevation.
   Grounded in six years of hands-on hardware & systems work.
   =========================================================== */

:root {
  --paper: #eef1f4;
  --paper-alt: #e2e7eb;
  --ink: #16202b;
  --ink-soft: #4b5a68;
  --ink-faint: #7c8a97;
  --blue: #2b5c8a;
  --amber: #d97a29;
  --amber-soft: #f2d9bb;
  --green: #3f8f5f;
  --panel: #1f2933;
  --panel-alt: #29343f;
  --panel-text: #edeff1;
  --line: rgba(22, 32, 43, 0.16);
  --line-soft: rgba(22, 32, 43, 0.09);
  --radius: 3px;
  --radius-lg: 6px;
  --font-display: "Big Shoulders Display", sans-serif;
  --font-head: "Big Shoulders", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1120px;
}

* { 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;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); }
a:hover { color: var(--amber); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.mono { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 0.6rem;
}

.section-title {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  margin: 0 0 1.6rem;
  color: var(--ink);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  position: relative;
  z-index: 1;
}

/* ---------------- topbar ---------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(238, 241, 244, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
}
.brand span { color: var(--amber); }
.brand:hover { color: var(--ink); }

.nav {
  display: flex;
  gap: 1.75rem;
}

.nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav a:hover,
.nav a.is-active {
  color: var(--ink);
  border-color: var(--amber);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  margin: 0 6px;
  background: var(--ink);
}

/* ---------------- hero ---------------- */

.hero { padding: clamp(2rem, 5vw, 4rem) 0 3rem; }

.hero-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: start;
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.4rem, 9vw, 6.4rem);
  line-height: 0.86;
  letter-spacing: 0.005em;
  margin: 0 0 0.6rem;
  text-transform: uppercase;
}

.hero-role {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.9rem;
}

.hero-tagline {
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.6;
  margin: 0 0 1.3rem;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--ink);
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.9rem 0.4rem 0.7rem;
  margin-bottom: 1.6rem;
}

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(63, 143, 95, 0.18);
  flex: none;
}
.led-pulse { animation: pulse 2.2s ease-in-out infinite; }
.led-amber { background: var(--amber); box-shadow: 0 0 0 3px rgba(217, 122, 41, 0.2); }
.led-dim { background: var(--ink-faint); box-shadow: none; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hero-contact li { display: flex; }

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 0.88rem;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.contact-chip:hover,
.contact-chip:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(22, 32, 43, 0.12);
}

.contact-chip svg,
.contact-chip img.icon {
  width: 16px;
  height: 16px;
  flex: none;
  color: var(--ink-soft);
  transition: color 0.18s ease, filter 0.18s ease;
}

.contact-chip:hover svg,
.contact-chip:focus-visible svg { color: inherit; }

.contact-email:hover, .contact-email:focus-visible { background: var(--amber); border-color: var(--amber); color: #fff; }
.contact-phone:hover, .contact-phone:focus-visible { background: var(--blue); border-color: var(--blue); color: #fff; }
.contact-linkedin:hover, .contact-linkedin:focus-visible { background: #0a66c2; border-color: #0a66c2; color: #fff; }
.contact-github:hover, .contact-github:focus-visible { background: #181717; border-color: #181717; color: #fff; }

.hero-photo {
  text-align: center;
}

.hero-photo img {
  width: 232px;
  height: 232px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--paper-alt);
  filter: grayscale(0.15);
}

/* ---------------- generic section ---------------- */

section:not(.hero) { padding: 3.2rem 0; }
section:not(.hero):not(:first-of-type) { border-top: 1px solid var(--line); }

/* ---------------- about ---------------- */

.about-text {
  max-width: 68ch;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------------- rack / experience ---------------- */

.rack {
  display: flex;
  flex-direction: column-reverse;
  gap: 1rem;
  position: relative;
  padding-left: 1.6rem;
}

.rack::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--ink-faint) 0,
    var(--ink-faint) 4px,
    transparent 4px,
    transparent 10px
  );
  opacity: 0.5;
}

.unit {
  position: relative;
  background: var(--panel);
  color: var(--panel-text);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem 1.5rem;
  box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset;
}

.unit::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 1.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--ink-faint);
}

.unit-current { background: var(--panel-alt); }
.unit-current::before { border-color: var(--amber); }

.unit-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 0.9rem;
  margin-bottom: 0.15rem;
}

.unit-id {
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}

.unit-head h3 {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  font-size: 1.3rem;
  margin: 0;
  flex: 1 1 auto;
}

.unit-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.unit-current .unit-status { color: var(--amber-soft); }

.unit-meta {
  font-size: 0.85rem;
  color: #b7c1cb;
  margin: 0 0 0.9rem;
}

.unit ul {
  margin: 0;
  padding-left: 1.1rem;
  color: #d7dce0;
  font-size: 0.95rem;
  line-height: 1.65;
}
.unit li + li { margin-top: 0.35rem; }

/* ---------------- skills / port map ---------------- */

.port-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.8rem 1rem;
}

.port {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.port-jack {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 0.35rem;
  border-radius: 2px;
  background: var(--blue);
  opacity: 0.75;
}

/* ---------------- credentials ---------------- */

.credentials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.cred-col h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 1rem;
}

.plaques {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.plaque {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
}

.plaque strong {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  margin-bottom: 0.15rem;
}

.plaque span {
  font-size: 0.85rem;
  color: var(--ink-faint);
}

/* ---------------- projects ---------------- */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
}

.card h3 {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  letter-spacing: 0.01em;
}

.card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0 0 1rem;
  flex: 1;
}

.card-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.demo-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: #fff;
  background: var(--amber);
  border-radius: var(--radius);
  padding: 0.4rem 0.8rem;
  transition: background 0.15s;
}
.demo-link:hover { background: var(--blue); }

.repo-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--blue);
}
.repo-link:hover { color: var(--amber); }
.repo-link.muted {
  color: var(--ink-faint);
  cursor: default;
}

.demo-creds {
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
  background: var(--paper-alt);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  margin: 0.8rem 0 0;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 1rem;
}

.gallery img {
  width: 84px;
  height: 58px;
  object-fit: cover;
  border-radius: 2px;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: transform 0.15s;
}
.gallery img:hover { transform: scale(1.06); }

/* ---------------- footer ---------------- */

.sitefoot {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 3rem;
  text-align: center;
}

.sitefoot .eyebrow { justify-content: center; }

.sitefoot h2 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 1rem;
}

.sitefoot p {
  color: var(--ink-soft);
  margin: 0 0 1.4rem;
}

.footlinks {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.sheetline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* ---------------- modal ---------------- */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(22, 32, 43, 0.9);
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.modal-content {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  background: #fff;
  cursor: auto;
}
.modal-close {
  position: absolute;
  top: 20px;
  right: 28px;
  color: #fff;
  font-size: 2.2rem;
  line-height: 1;
  font-weight: 300;
  cursor: pointer;
}

/* ---------------- reveal-on-scroll ---------------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------- responsive ---------------- */

@media (max-width: 860px) {
  .nav { display: none; }
  .nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem clamp(1.25rem, 4vw, 2.5rem) 1.5rem;
    gap: 0.9rem;
  }
  .nav-toggle { display: flex; }

  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-photo { order: -1; text-align: left; }
  .hero-photo img { width: 128px; height: 128px; }

  .credentials-grid { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 560px) {
  .hero-frame { padding: 1.5rem 1.1rem; }
  .unit { padding: 1.1rem 1.1rem 1.3rem; }
  .rack { padding-left: 1.3rem; }
  .unit::before { left: -1.3rem; }
}