/* ============================================================
   Saleh — academic portfolio
   Terminal / hacker aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=IBM+Plex+Serif:ital,wght@0,400;0,500;1,400&display=swap');

:root {
  --bg:        #0d1017;
  --bg-alt:    #12161f;
  --fg:        #e8e4d8;
  --fg-dim:    #8a8478;
  --fg-dimmer: #5a574e;
  --border:    #232731;
  --border-hi: #333945;
  --prompt:    #7cb3a8;   /* teal — prompts, links hover */
  --accent:    #d4a574;   /* amber — highlights */
  --string:    #9cb58b;   /* muted green — strings, dates */
  --keyword:   #b58da5;   /* muted mauve — keywords */

  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --serif: 'IBM Plex Serif', Georgia, serif;

  --content-max: 720px;
  --sidebar-w: 240px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* subtle scanline texture — very faint */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255,255,255,0.008) 0px,
    rgba(255,255,255,0.008) 1px,
    transparent 1px,
    transparent 3px
  );
  z-index: 1;
}

a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--border-hi);
  transition: color .12s, border-color .12s;
}
a:hover {
  color: var(--prompt);
  border-bottom-color: var(--prompt);
}

::selection { background: var(--prompt); color: var(--bg); }

/* ============================================================
   Layout
   ============================================================ */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  position: relative;
  z-index: 2;
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 32px 24px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: var(--bg);
}

.main {
  padding: 48px 56px;
  max-width: calc(var(--content-max) + 112px);
}

/* ============================================================
   Sidebar
   ============================================================ */
.brand {
  margin-bottom: 32px;
}
.brand-line {
  color: var(--fg-dim);
  font-size: 12px;
  margin-bottom: 4px;
}
.brand-line .prompt { color: var(--prompt); }
.brand-name {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-sub {
  color: var(--fg-dim);
  font-size: 12px;
  margin-top: 4px;
}

.nav-section-label {
  color: var(--fg-dimmer);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 24px 0 8px;
  padding-left: 14px;
}

.nav {
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav li { margin: 0; }
.nav a {
  display: block;
  padding: 4px 14px;
  border: none;
  border-left: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 13px;
}
.nav a:hover {
  color: var(--fg);
  border-left-color: var(--border-hi);
  background: var(--bg-alt);
}
.nav a.active {
  color: var(--fg);
  border-left-color: var(--prompt);
  background: var(--bg-alt);
}
.nav a .hash { color: var(--fg-dimmer); margin-right: 6px; }
.nav a.active .hash { color: var(--prompt); }

.sidebar-footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--fg-dimmer);
  font-size: 11px;
  line-height: 1.8;
}
.sidebar-footer a { border: none; color: var(--fg-dim); }
.sidebar-footer a:hover { color: var(--prompt); }

/* ============================================================
   Content primitives
   ============================================================ */
.cmd-line {
  color: var(--fg-dim);
  font-size: 12px;
  margin-bottom: 28px;
}
.cmd-line .prompt { color: var(--prompt); }
.cmd-line .flag { color: var(--accent); }
.cmd-line .arg { color: var(--fg); }

h1, h2, h3 { font-weight: 500; letter-spacing: -0.01em; }
h1 {
  font-size: 22px;
  margin: 0 0 6px;
}
h1 .hash { color: var(--prompt); margin-right: 6px; }

h2 {
  font-size: 15px;
  margin: 40px 0 12px;
  color: var(--fg);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
h2::before {
  content: '##';
  color: var(--prompt);
  font-weight: 700;
}

h3 {
  font-size: 14px;
  margin: 20px 0 6px;
  color: var(--fg);
}
h3::before {
  content: '### ';
  color: var(--fg-dimmer);
}

.lede {
  color: var(--fg-dim);
  font-size: 13px;
  margin-bottom: 24px;
}

p { margin: 0 0 14px; }

.prose { max-width: var(--content-max); }
.prose p { color: var(--fg); }
.prose .muted { color: var(--fg-dim); }

/* body copy for essay-style posts uses serif */
.prose-serif {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.7;
  max-width: var(--content-max);
}
.prose-serif p { margin-bottom: 18px; }
.prose-serif code { font-family: var(--mono); font-size: 14px; background: var(--bg-alt); padding: 1px 5px; border-radius: 2px; }

hr.rule {
  border: none;
  border-top: 1px dashed var(--border-hi);
  margin: 28px 0;
}

/* ============================================================
   Lists of items (posts, pubs, projects)
   ============================================================ */
.list { display: flex; flex-direction: column; gap: 2px; max-width: var(--content-max); }

.item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.item:last-child { border-bottom: none; }
.item-date {
  color: var(--string);
  font-size: 12px;
}
.item-title { color: var(--fg); }
.item-title a { border: none; }
.item-title a:hover { color: var(--prompt); }
.item-meta {
  color: var(--fg-dim);
  font-size: 12px;
  margin-top: 2px;
}

/* ============================================================
   Publications
   ============================================================ */
.year-group {
  margin-bottom: 28px;
}
.year-label {
  color: var(--fg-dimmer);
  font-size: 11px;
  letter-spacing: 0.15em;
  margin: 8px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border-hi);
}

.pub {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.pub:last-child { border-bottom: none; }
.pub-title {
  color: var(--fg);
  font-size: 14px;
  margin-bottom: 3px;
}
.pub-authors {
  color: var(--fg-dim);
  font-size: 12px;
  margin-bottom: 3px;
}
.pub-authors .me { color: var(--fg); text-decoration: underline; text-decoration-color: var(--prompt); text-underline-offset: 3px; }
.pub-venue {
  color: var(--accent);
  font-size: 12px;
  font-style: normal;
  margin-bottom: 6px;
}
.pub-venue .venue-name { }
.pub-links {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--fg-dim);
  margin-top: 4px;
  flex-wrap: wrap;
}
.pub-links button,
.pub-links a {
  background: none;
  border: none;
  color: var(--fg-dim);
  padding: 0;
  font: inherit;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}
.pub-links button:hover,
.pub-links a:hover { color: var(--prompt); border-bottom-color: var(--prompt); }
.pub-links .bracket { color: var(--fg-dimmer); }

.tags {
  display: inline-flex;
  gap: 6px;
  margin-left: 2px;
  flex-wrap: wrap;
}
.tag {
  color: var(--keyword);
  font-size: 11px;
  padding: 0 5px;
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
}
.tag:hover { border-color: var(--keyword); color: var(--keyword); }
.tag.active {
  background: var(--keyword);
  color: var(--bg);
  border-color: var(--keyword);
}

.filter-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 24px;
  padding: 12px 14px;
  border: 1px dashed var(--border-hi);
  border-radius: 2px;
  background: var(--bg-alt);
}
.filter-bar .label {
  color: var(--fg-dim);
  font-size: 11px;
  margin-right: 4px;
}
.filter-bar .clear {
  margin-left: auto;
  color: var(--fg-dim);
  font-size: 11px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--mono);
}
.filter-bar .clear:hover { color: var(--accent); }

.bibtex-panel {
  margin-top: 10px;
  background: #090c12;
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  padding: 12px 14px;
  font-size: 12px;
  color: var(--fg-dim);
  white-space: pre;
  overflow-x: auto;
  position: relative;
}
.bibtex-panel .copied {
  position: absolute;
  top: 8px;
  right: 10px;
  color: var(--prompt);
  font-size: 11px;
}

/* ============================================================
   Projects
   ============================================================ */
.project {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.project:last-child { border-bottom: none; }
.project-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.project-name {
  color: var(--fg);
  font-size: 14px;
  font-weight: 500;
}
.project-status {
  font-size: 11px;
  color: var(--fg-dim);
  padding: 0 5px;
  border: 1px solid var(--border-hi);
  border-radius: 2px;
}
.project-status.active { color: var(--string); border-color: var(--string); }
.project-status.archived { color: var(--fg-dimmer); }
.project-desc {
  color: var(--fg-dim);
  font-size: 13px;
  margin: 3px 0 6px;
}
.project-stack {
  color: var(--fg-dimmer);
  font-size: 11px;
}

/* ============================================================
   CV
   ============================================================ */
.cv-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 8px 0;
  border-bottom: 1px dotted var(--border);
}
.cv-row:last-child { border-bottom: none; }
.cv-when { color: var(--string); font-size: 12px; }
.cv-what-title { color: var(--fg); }
.cv-what-org { color: var(--fg-dim); font-size: 12px; }

/* ============================================================
   Contact
   ============================================================ */
.contact-block {
  font-family: var(--mono);
  font-size: 13px;
  padding: 16px 18px;
  border: 1px dashed var(--border-hi);
  background: var(--bg-alt);
  max-width: var(--content-max);
  border-radius: 2px;
}
.contact-block .k { color: var(--fg-dim); display: inline-block; width: 90px; }
.contact-block .v { color: var(--fg); }

/* ============================================================
   Blinking cursor
   ============================================================ */
.cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--prompt);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1.1s steps(2, end) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 20px 20px 16px;
  }
  .main { padding: 28px 20px; }
  .item { grid-template-columns: 70px 1fr; }
  .cv-row { grid-template-columns: 100px 1fr; }
}