/* =========================================================
   marlenafabrick.net — shared site theme (dark / techy)
   Used by: index.html, projects.html, courses.html, links.html
   ========================================================= */

:root {
  --bg: #0b0f17;
  --bg-elev: #111827;
  --panel: #151c2b;
  --panel-2: #1b2436;
  --border: #263247;
  --text: #e6edf6;
  --muted: #9aa7bb;
  --faint: #6b7890;
  --accent: #36e2c4;      /* teal */
  --accent-2: #a78bfa;    /* violet */
  --accent-3: #f472b6;    /* pink */
  --warn: #fbbf24;
  --radius: 14px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --max: 1120px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(167, 139, 250, 0.12), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(54, 226, 196, 0.10), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* faint grid overlay for a "terminal" feel */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 85%);
  z-index: -1;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

img { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(11, 15, 23, 0.78);
  border-bottom: 1px solid var(--border);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.brand {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .prompt { color: var(--accent); }
.brand .cursor {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: -2px;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--panel);
  text-decoration: none;
}
.nav-links a[aria-current="page"] {
  color: var(--accent);
  background: rgba(54, 226, 196, 0.08);
}

.nav-toggle {
  display: none;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: var(--mono);
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 10px 20px 16px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; }
}

/* ---------- Typography ---------- */
h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.eyebrow::before { content: "// "; color: var(--faint); }

.gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.muted { color: var(--muted); }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 62ch; }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
.section-head { margin-bottom: 32px; }
.page-head { padding: 64px 0 24px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: center;
}
.hero-photo {
  position: relative;
  justify-self: center;
  width: min(300px, 70vw);
  aspect-ratio: 1;
}
.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  border: 3px solid var(--panel);
  position: relative;
  z-index: 1;
}
.hero-photo::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  filter: blur(2px);
  animation: spin 12s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero .roles {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 0.98rem;
  margin-bottom: 18px;
}
.hero .roles span { color: var(--accent-2); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(90deg, var(--accent), #2bc7e8);
  color: #04110f;
  border-color: transparent;
}
.btn.primary:hover { filter: brightness(1.08); }

/* waveform (audio nod) */
.wave {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 34px;
  margin-top: 30px;
}
.wave i {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(to top, var(--accent), var(--accent-2));
  animation: eq 1.2s ease-in-out infinite;
  opacity: 0.85;
}
@keyframes eq {
  0%, 100% { height: 18%; }
  50% { height: 100%; }
}

/* ---------- Code panel ---------- */
.code-panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 0.9rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
.code-panel .bar {
  display: flex;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.code-panel .bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ff5f57;
}
.code-panel .bar i:nth-child(2) { background: #febc2e; }
.code-panel .bar i:nth-child(3) { background: #28c840; }
.code-panel .bar span { margin-left: 8px; color: var(--faint); font-size: 0.8rem; }
.code-panel pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  line-height: 1.7;
  color: var(--text);
}
.tok-k { color: var(--accent-2); }
.tok-s { color: #a5e8b8; }
.tok-p { color: var(--accent); }
.tok-c { color: var(--faint); }

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, var(--panel), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(54, 226, 196, 0.55);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(54, 226, 196, 0.15);
}
.card .icon {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.95rem; flex: 1; }
.card .links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 14px; font-family: var(--mono); font-size: 0.88rem; }
.card .links a::after { content: " \2192"; }
.card.featured { border-color: rgba(167, 139, 250, 0.45); }
.badge {
  position: absolute;
  top: 18px;
  right: 18px;
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--accent-2);
  border: 1px solid rgba(167, 139, 250, 0.45);
  background: rgba(167, 139, 250, 0.08);
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(54, 226, 196, 0.08);
  color: #9ff3e2;
  border: 1px solid rgba(54, 226, 196, 0.22);
}

/* filter chips */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.chip {
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip[aria-pressed="true"] {
  color: #04110f;
  background: var(--accent);
  border-color: var(--accent);
}

/* skills */
.skills {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.skill-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.skill-box h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
}
.skill-box h3::before { content: "> "; color: var(--faint); }

/* about split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.stat strong { display: block; font-size: 1.6rem; font-family: var(--mono); color: var(--accent); }
.stat span { color: var(--muted); font-size: 0.85rem; }

/* list rows (courses / links) */
.row-list { display: grid; gap: 14px; }
.row-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  color: var(--text);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
a.row-item:hover { text-decoration: none; border-color: var(--accent); transform: translateX(4px); }
.row-item .code { font-family: var(--mono); color: var(--accent); font-size: 0.9rem; min-width: 82px; }
.row-item .title { flex: 1; font-weight: 600; }
.row-item .meta { color: var(--muted); font-size: 0.88rem; font-family: var(--mono); }

/* footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 44px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.85rem;
}
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

/* reveal on scroll: content stays visible unless JavaScript is running */
.reveal { transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal:not(.in) { opacity: 0; transform: translateY(16px); }

@media (max-width: 860px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .hero-photo { order: -1; width: min(220px, 60vw); }
  section { padding: 56px 0; }
}
@media (max-width: 520px) {
  .code-panel pre { font-size: 0.78rem; white-space: pre-wrap; word-break: break-word; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .row-item { flex-wrap: wrap; }
  .row-item .meta { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* "site in progress" notice */
.notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(167, 139, 250, 0.08);
  border: 1px solid rgba(167, 139, 250, 0.35);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--muted);
  font-size: 0.95rem;
}
.notice .dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 10px var(--accent-2);
  animation: blink 2s ease-in-out infinite;
}
.notice strong { color: var(--text); }

/* Email copy popup */
.email-toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 1000;
  width: calc(100% - 32px); max-width: 440px;
  background: #11161f; color: #e6edf3; border: 1px solid rgba(45, 212, 191, 0.45);
  border-radius: 14px; padding: 14px 16px; box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  font-size: 0.95rem;
}
.email-toast p { margin: 0 0 10px; overflow-wrap: anywhere; }
.email-toast strong { color: #5eead4; }
.email-toast-links { display: flex; flex-wrap: wrap; gap: 8px; }
.email-toast-links a, .email-toast-links button {
  font: inherit; font-size: 0.88rem; padding: 7px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.18); background: rgba(255, 255, 255, 0.06); color: #e6edf3;
  text-decoration: none;
}
.email-toast-links a:first-child { background: var(--accent); border-color: var(--accent); color: #04110f; font-weight: 600; }
.email-toast-links a:hover, .email-toast-links button:hover { border-color: var(--accent); text-decoration: none; }
.email-toast[hidden] { display: none; }