/* =========================================================
   Garrett Nunes — personal site
   Self-contained styles. Dark, modern, fast.
   ========================================================= */

:root {
  --bg: #0a0b0f;
  --bg-soft: #11131a;
  --bg-card: #14161f;
  --line: #232634;
  --text: #e7e9ee;
  --text-dim: #9aa0ad;
  --text-faint: #6b7280;
  --accent: #5eead4;        /* teal */
  --accent-2: #a78bfa;      /* violet */
  --accent-3: #38bdf8;      /* sky */
  --radius: 16px;
  --maxw: 1080px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}

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

html { scroll-behavior: smooth; }

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

body {
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.55;
}

body::before {
  /* radial glow behind hero */
  content: "";
  position: fixed;
  top: -20%;
  left: 50%;
  width: 120vw;
  height: 90vh;
  transform: translateX(-50%);
  background:
    radial-gradient(40% 50% at 30% 20%, rgba(94, 234, 212, 0.10), transparent 70%),
    radial-gradient(35% 45% at 75% 15%, rgba(167, 139, 250, 0.10), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

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

.grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-3) 45%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Skip link ---- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #04120f;
  padding: 10px 16px;
  border-radius: 0 0 10px 0;
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---- Header / nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 11, 15, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(10, 11, 15, 0.82);
}
.nav {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04120f;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 18px;
}
.brand-mark.small { width: 28px; height: 28px; font-size: 15px; }
.brand-name { letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active:not(.nav-cta) { color: var(--accent); }
.nav-cta {
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--text) !important;
}
.nav-cta:hover { border-color: var(--accent); }

/* ---- Mobile nav toggle ---- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0 9px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease);
}
.nav-toggle:hover { border-color: var(--accent); }
.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px;
    background: rgba(13, 15, 22, 0.97);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    transform-origin: top right;
    transform: scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  }
  .nav-links.open {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
  }
  .nav-links a {
    display: block;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 1rem;
  }
  .nav-links a:hover { background: rgba(255, 255, 255, 0.04); }
  .nav-cta { text-align: center; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease), background 0.2s var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #04120f;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -10px rgba(94, 234, 212, 0.5);
}
.btn-ghost {
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); transform: translateY(-2px); }

/* ---- Hero ---- */
.hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(70px, 12vw, 140px) 24px 90px;
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 26px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(94, 234, 212, 0.7);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(94, 234, 212, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(94, 234, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(94, 234, 212, 0); }
}
.hero-title {
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin-bottom: 26px;
}
.hero-sub {
  max-width: 620px;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--text-dim);
  margin-bottom: 36px;
}
.hero-sub strong { color: var(--text); font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 54px; }

/* ---- Terminal flourish ---- */
.terminal {
  max-width: 560px;
  background: rgba(17, 19, 26, 0.85);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.terminal-title {
  margin-left: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--text-faint);
}
.terminal-body {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.86rem;
  line-height: 1.7;
  padding: 16px 18px;
  color: var(--accent);
  min-height: 132px;
  white-space: pre-wrap;
  word-break: break-word;
}
.terminal-body .muted { color: var(--text-faint); }
.terminal-body .ok { color: #28c840; }
.cursor {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- Scroll hint ---- */
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--line);
  border-radius: 16px;
  display: grid;
  place-items: start center;
  padding-top: 7px;
}
.scroll-hint span {
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  animation: scrolldown 1.8s var(--ease) infinite;
}
@keyframes scrolldown {
  0% { opacity: 0; transform: translateY(0); }
  40% { opacity: 1; }
  80% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 0; }
}

/* ---- Sections ---- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(70px, 10vw, 120px) 24px;
}
.section-alt {
  max-width: none;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-head { margin-bottom: 54px; max-width: 680px; }
.section-head h2,
.about-copy h2,
.contact-inner h2 {
  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 12px 0 16px;
  line-height: 1.1;
}
.section-lead { color: var(--text-dim); font-size: 1.1rem; }

/* ---- Cards ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(140px 140px at var(--mx, 50%) var(--my, 0%),
    rgba(94, 234, 212, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.card:hover,
.card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(94, 234, 212, 0.4);
  outline: none;
}
.card:hover::before,
.card:focus-visible::before { opacity: 1; }
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.card-index {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-faint);
  transition: color 0.35s var(--ease);
}
.card:hover .card-index,
.card:focus-visible .card-index { color: var(--accent); }
.card-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
}
.card h3 { font-size: 1.5rem; letter-spacing: -0.01em; margin-bottom: 12px; }
.card p { color: var(--text-dim); font-size: 0.98rem; }
.card-points {
  list-style: none;
  margin-top: 18px;
  display: grid;
  gap: 9px;
}
.card-points li {
  position: relative;
  padding-left: 22px;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.5;
}
.card-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.card-meta li {
  font-size: 0.78rem;
  color: var(--text-faint);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 8px;
}

.work-note {
  margin-top: 40px;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  color: var(--text-dim);
  font-size: 1.02rem;
  max-width: 640px;
}

/* ---- Principles ---- */
.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.principle {
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(20, 22, 31, 0.5);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.principle:hover { transform: translateY(-4px); border-color: rgba(167, 139, 250, 0.4); }
.principle-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--accent);
}
.principle h3 { font-size: 1.18rem; margin: 12px 0 10px; letter-spacing: -0.01em; }
.principle p { color: var(--text-dim); font-size: 0.95rem; }

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 800px) { .about-grid { grid-template-columns: 1fr; gap: 36px; } }
.about-copy p { color: var(--text-dim); margin-top: 18px; }
.about-copy strong { color: var(--text); }
.about-side {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  position: sticky;
  top: 90px;
}
.facts { display: grid; gap: 16px; }
.facts > div { display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.facts dt { color: var(--text-faint); font-size: 0.9rem; }
.facts dd { color: var(--text); font-weight: 600; font-size: 0.95rem; text-align: right; }
.stack { margin-top: 24px; }
.stack-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.stack ul { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin-top: 12px; }
.stack li {
  font-size: 0.82rem;
  color: var(--accent);
  border: 1px solid rgba(94, 234, 212, 0.25);
  background: rgba(94, 234, 212, 0.05);
  padding: 5px 11px;
  border-radius: 8px;
}

/* ---- Contact ---- */
.section-contact { text-align: center; }
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact-actions { margin-top: 28px; }
.contact-actions .btn-primary { font-size: 1.05rem; font-family: "JetBrains Mono", monospace; }
.contact-note { margin-top: 18px; font-size: 0.82rem; color: var(--text-faint); }

/* ---- Footer ---- */
.site-footer { border-top: 1px solid var(--line); }
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-faint);
  font-size: 0.9rem;
}
.footer-inner p { margin-right: auto; }
.back-top { color: var(--text-dim); transition: color 0.2s var(--ease); }
.back-top:hover { color: var(--accent); }

/* ---- Reveal on scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* Stagger siblings within a grid for a tasteful cascade */
.cards .reveal:nth-child(2),
.principles .reveal:nth-child(2) { transition-delay: 0.08s; }
.cards .reveal:nth-child(3),
.principles .reveal:nth-child(3) { transition-delay: 0.16s; }
.principles .reveal:nth-child(4) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  .cards .reveal, .principles .reveal { transition-delay: 0s !important; }
}

/* focus visibility */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Honor reduced-motion for the pieces JS can't reach */
@media (prefers-reduced-motion: reduce) {
  .status-dot { animation: none; }
  .scroll-hint span { animation: none; opacity: 0.8; }
  .cursor { animation: none; }
}