@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Inter:wght@400;500;600&display=swap');

/* Dark grey terminal theme (default) */
:root {
  --bg: #1c1c1a;
  --bg2: #252523;
  --bg3: #2e2e2c;
  --text: #e8e7e3;
  --text2: #b8b6ae;
  --text3: #8a8880;
  --border: rgba(255,255,255,0.12);
  --border2: rgba(255,255,255,0.22);
  --mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --sans: 'Inter', -apple-system, system-ui, sans-serif;
  --term: #5af78e;
  --term-dim: #3b9e5a;
  --purple: #AFA9EC;
  --purple-bg: #26215C;
  --purple-text: #CECBF6;
  --teal: #5DCAA5;
  --teal-bg: #04342C;
  --teal-text: #9FE1CB;
  --coral: #F0997B;
  --coral-bg: #4A1B0C;
  --coral-text: #F5C4B3;
  --blue: #85B7EB;
  --blue-bg: #042C53;
  --blue-text: #B5D4F4;
  --pink: #ED93B1;
  --pink-bg: #4B1528;
  --pink-text: #F4C0D1;
  --gray: #B4B2A9;
  --gray-bg: #2C2C2A;
  --green-text: #C0DD97;
  --green-bg: #173404;
  --amber-text: #FAC775;
  --amber-bg: #412402;
  --success: #5af78e;
  --success-bg: #0f2b12;
  --warning: #EF9F27;
  --warning-bg: #412402;
  --info: #85B7EB;
  --info-bg: #042C53;
  --trace-opacity: 0.06;
  --radius: 8px;
  --radius-lg: 12px;
}

/* Solarized light theme */
[data-theme="light"] {
  --bg: #fdf6e3;
  --bg2: #eee8d5;
  --bg3: #e4ddc8;
  --text: #073642;
  --text2: #586e75;
  --text3: #93a1a1;
  --border: rgba(0,0,0,0.1);
  --border2: rgba(0,0,0,0.18);
  --term: #859900;
  --term-dim: #6d8100;
  --purple: #6c71c4;
  --purple-bg: #eeedfe;
  --purple-text: #3c3489;
  --teal: #2aa198;
  --teal-bg: #e1f5ee;
  --teal-text: #085041;
  --coral: #cb4b16;
  --coral-bg: #faece7;
  --coral-text: #712b13;
  --blue: #268bd2;
  --blue-bg: #e6f1fb;
  --blue-text: #0c447c;
  --pink: #d33682;
  --pink-bg: #fbeaf0;
  --pink-text: #72243e;
  --gray: #657b83;
  --gray-bg: #eee8d5;
  --green-text: #27500a;
  --green-bg: #eaf3de;
  --amber-text: #b58900;
  --amber-bg: #faeeda;
  --success: #859900;
  --success-bg: #eaf3de;
  --warning: #b58900;
  --warning-bg: #faeeda;
  --info: #268bd2;
  --info-bg: #e6f1fb;
  --trace-opacity: 0.08;
}

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

body {
  font-family: var(--mono);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

/* Falling code background */
#bg-effects {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  -webkit-mask-image: radial-gradient(ellipse 40% 40% at 50% 50%, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.4) 30%, rgba(0,0,0,1) 60%);
  mask-image: radial-gradient(ellipse 40% 40% at 50% 50%, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.4) 30%, rgba(0,0,0,1) 60%);
}
.bit-drop {
  position: absolute;
  top: -5%;
  font-family: var(--mono);
  color: var(--text3);
  opacity: 0;
  animation: bitfall linear infinite;
  white-space: nowrap;
}
@keyframes bitfall {
  0%   { transform: translateY(-20px); opacity: 0; }
  5%   { opacity: 0.35; }
  95%  { opacity: 0.35; }
  100% { transform: translateY(105vh); opacity: 0; }
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s;
}
.theme-toggle:hover { color: var(--text); }

.site-wrap {
  max-width: 740px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* NAV */
.nav {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 2rem;
  font-size: 12px;
  color: var(--text3);
  flex-wrap: wrap;
}
.nav-path { color: var(--text2); }
.nav-current { color: var(--text); font-weight: 500; }
.nav-right {
  margin-left: auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.nav a {
  color: var(--text2);
  text-decoration: none;
  transition: color 0.15s;
}
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--text); font-weight: 500; }
.nav-sep { color: var(--border2); }
.nav-social { color: var(--text3); font-size: 11px; display: inline-flex; align-items: center; }
.nav-social:hover { color: var(--text); }
.nav-social svg { width: 15px; height: 15px; fill: currentColor; vertical-align: middle; }
.nav-email {
  text-align: right;
  font-size: 11px;
  margin-top: -1.5rem;
  margin-bottom: 1.5rem;
}
.nav-email a {
  color: var(--text3);
  text-decoration: none;
  font-family: var(--mono);
}
.nav-email a:hover { color: var(--text); }

/* MODULE HEADER */
.mod-decl { font-size: 12px; color: var(--text3); margin-bottom: 2px; }
.mod-decl .kw { color: var(--term); }
.mod-title {
  font-size: 24px; font-weight: 600; font-family: var(--sans);
  letter-spacing: -0.5px; margin-bottom: 6px; color: var(--text);
}
.mod-desc { font-size: 13px; color: var(--text2); line-height: 1.5; margin-bottom: 1.5rem; }

/* CURSOR */
@keyframes blink { 0%,49%{opacity:1} 50%,100%{opacity:0} }
.cursor {
  display: inline-block; width: 8px; height: 16px; vertical-align: middle;
  background: var(--term); margin-left: 3px;
  animation: blink 1s step-end infinite;
}
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

/* WAVEFORM BANNER */
.waveform-banner {
  width: 100%;
  margin-bottom: 1.2rem;
  height: 40px;
  display: flex;
  align-items: stretch;
}
.waveform-labels {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  padding-right: 8px;
  border-right: 0.5px solid var(--border);
  margin-right: 8px;
  flex-shrink: 0;
}
.waveform-label {
  font-family: var(--mono);
  font-size: 10px;
  line-height: 18px;
  text-align: right;
  opacity: 0.7;
}
.waveform-signals {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.waveform-track {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  width: max-content;
  height: 20px;
}
.waveform-track:nth-child(2) {
  top: 20px;
}
.waveform-track svg {
  flex-shrink: 0;
  display: block;
}
.waveform-clk {
  animation: waveform-scroll 50s linear infinite;
}
.waveform-en {
  animation: waveform-scroll 60s linear infinite;
}
@keyframes waveform-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-2400px); }
}
@media (prefers-reduced-motion: reduce) {
  .waveform-clk, .waveform-en { animation: none !important; }
}

/* HERO ROW */
.hero-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

/* CHIP FRAME — profile picture styled as IC package */
.chip-frame {
  position: relative;
  width: 170px;
  height: 170px;
  flex-shrink: 0;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 10px;
}
.chip-die {
  position: absolute;
  inset: 14px;
  border-radius: 4px;
  overflow: hidden;
  border: 0.5px solid var(--border2);
  background: var(--bg3);
}
.chip-die img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(0.92) brightness(1.02);
}
.chip-label {
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 7px;
  font-family: var(--mono);
  color: var(--text3);
  opacity: 0.6;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* Chip pins — repeating marks on each side */
.chip-pins {
  position: absolute;
}
.chip-pins-top,
.chip-pins-bottom {
  left: 20px; right: 20px;
  height: 5px;
  background: repeating-linear-gradient(
    90deg,
    var(--text3) 0px, var(--text3) 4px,
    transparent 4px, transparent 10px
  );
  opacity: 0.3;
  border-radius: 1px;
}
.chip-pins-top { top: -1px; }
.chip-pins-bottom { bottom: -1px; }
.chip-pins-left,
.chip-pins-right {
  top: 20px; bottom: 20px;
  width: 5px;
  background: repeating-linear-gradient(
    180deg,
    var(--text3) 0px, var(--text3) 4px,
    transparent 4px, transparent 10px
  );
  opacity: 0.3;
  border-radius: 1px;
}
.chip-pins-left { left: -1px; }
.chip-pins-right { right: -1px; }

/* PORT MAP */
.port-map {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin-bottom: 2rem;
  font-size: 11px;
  color: var(--text3);
  line-height: 2;
}
.port-map .key { color: var(--text2); }
.port-map .val-green { color: var(--term); }

/* SECTION COMMENT */
.section-comment {
  font-size: 12px; color: var(--term-dim);
  margin: 0 0 8px;
}

/* CARDS */
.card-wrap {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  overflow: hidden;
}
.card-body { padding: 12px 0 0; }
.card-detail {
  padding: 8px 16px 12px;
  font-size: 11px;
  color: var(--text3);
  border-top: 0.5px solid var(--border);
  min-height: 42px;
  transition: opacity 0.2s;
}

/* FILTER BUTTONS */
.filters { display: flex; gap: 6px; margin-bottom: 1.5rem; flex-wrap: wrap; }
.filter-btn {
  font-size: 11px; font-family: var(--mono);
  padding: 4px 12px; border: 0.5px solid var(--border);
  border-radius: 4px; background: transparent;
  color: var(--text2); cursor: pointer; transition: all 0.15s;
}
.filter-btn:hover { border-color: var(--border2); }
.filter-btn.on {
  background: var(--bg2); color: var(--text);
  border-color: var(--border2);
}

/* PROJECT CARDS */
.proj-card {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px; margin-bottom: 10px;
  transition: border-color 0.2s;
  text-decoration: none; display: block; color: inherit;
  cursor: pointer;
}
.proj-card:hover { border-color: var(--border2); }
.proj-card-header {
  display: flex; justify-content: space-between;
  align-items: baseline; margin-bottom: 8px;
}
.proj-card-name { font-size: 14px; font-weight: 500; color: var(--text); }
.proj-card-desc {
  font-size: 12px; color: var(--text2);
  margin-bottom: 10px; line-height: 1.5;
}
.proj-card-stats {
  display: flex; gap: 20px;
  font-size: 11px; color: var(--text3);
}
.proj-card-link {
  margin-top: 10px; font-size: 11px;
}
.proj-card-link a {
  color: var(--info); text-decoration: none;
}
.proj-card-link a:hover { text-decoration: underline; }

/* STATUS PILLS */
.pill {
  display: inline-block; font-size: 10px; font-family: var(--mono);
  padding: 2px 8px; border-radius: 4px; margin-left: 6px;
}
.pill-synth { background: var(--success-bg); color: var(--success); }
.pill-wip { background: var(--warning-bg); color: var(--warning); }
.pill-fab { background: var(--info-bg); color: var(--info); }
.pill-cat { background: var(--bg2); color: var(--text2); }

/* PORT TABLE */
.port-row {
  display: flex; gap: 6px; font-size: 11px;
  color: var(--text3); padding: 2px 0;
}
.port-dir { color: var(--text2); min-width: 42px; }
.port-name { color: var(--text); }
.port-width { margin-left: auto; color: var(--text3); }
.port-section {
  border-top: 0.5px solid var(--border);
  padding-top: 10px; margin-top: 10px;
}
.port-section-label {
  font-size: 11px; color: var(--text2);
  font-weight: 500; margin-bottom: 4px;
}

/* CATEGORY LABELS */
.cat-label {
  font-size: 11px; color: var(--text3);
  text-transform: uppercase; letter-spacing: 1.2px;
  margin: 0 0 10px; padding-top: 8px;
  border-top: 0.5px solid var(--border);
}
.cat-label:first-of-type { border-top: none; padding-top: 0; }

/* BLOG CARDS */
.blog-card {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
  cursor: pointer; transition: border-color 0.2s;
  text-decoration: none; display: block; color: inherit;
}
.blog-card:hover { border-color: var(--border2); }
.blog-meta {
  display: flex; gap: 16px; font-size: 11px;
  color: var(--text3); margin-bottom: 8px; flex-wrap: wrap;
}
.blog-title {
  font-size: 16px; font-weight: 500; font-family: var(--sans);
  color: var(--text); margin-bottom: 6px;
}
.blog-excerpt {
  font-size: 12px; color: var(--text2);
  margin-bottom: 10px; line-height: 1.5;
}
.blog-tag {
  display: inline-block; font-size: 10px; font-family: var(--mono);
  padding: 2px 8px; border: 0.5px solid var(--border);
  border-radius: 3px; color: var(--text3); margin-right: 5px;
}

/* DATASHEET TABLES */
.ds-table {
  width: 100%; border-collapse: collapse;
  font-size: 12px; font-family: var(--mono);
}
.ds-table th {
  text-align: left; font-weight: 500; color: var(--text2);
  padding: 6px 10px; border-bottom: 0.5px solid var(--border);
}
.ds-table td {
  padding: 6px 10px; color: var(--text);
  border-bottom: 0.5px solid var(--border);
}
.ds-table td.muted { color: var(--text3); }
.ds-table td.val { font-weight: 500; text-align: center; }
.ds-table td.unit { color: var(--text3); text-align: right; white-space: nowrap; }
.ds-table td a:hover { text-decoration: underline !important; }
.ds-table-wrap {
  border: 0.5px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}

/* SECTION HEADINGS (datasheet style) */
.ds-heading {
  font-size: 13px; font-weight: 500; color: var(--text2);
  margin: 0 0 10px; display: flex; align-items: baseline; gap: 8px;
}
.ds-heading .note { font-size: 11px; color: var(--text3); font-weight: 400; }
.ds-section { margin-bottom: 2rem; }

/* TAG CHIPS */
.tag {
  display: inline-block; font-size: 11px; font-family: var(--mono);
  padding: 3px 10px; border: 0.5px solid var(--border);
  border-radius: 4px; color: var(--text2); margin: 0 6px 6px 0;
}
.tag-highlight { border-color: var(--info); }

/* FEATURE LIST */
.feat-list { font-size: 12px; color: var(--text); line-height: 1.9; padding-left: 12px; }
.feat-list div { display: flex; gap: 8px; align-items: baseline; }
.feat-list .dash { color: var(--text3); }

/* SKILL BARS */
.skill-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
}
.skill-label { font-size: 12px; color: var(--text); min-width: 120px; }
.skill-track {
  height: 6px; background: var(--bg2);
  border-radius: 3px; overflow: hidden; flex: 1;
}
.skill-fill { height: 100%; border-radius: 3px; }
.skill-pct { font-size: 11px; color: var(--text3); min-width: 30px; text-align: right; }

/* TIMELINE */
.tl-item { display: flex; gap: 14px; margin-bottom: 20px; }
.tl-track { display: flex; flex-direction: column; align-items: center; }
.tl-dot {
  width: 8px; height: 8px; border-radius: 50%;
  border: 1.5px solid; flex-shrink: 0; margin-top: 4px;
}
.tl-line {
  width: 1px; background: var(--border);
  flex-shrink: 0; margin-left: 0; flex: 1; min-height: 60px;
}
.tl-content { flex: 1; }
.tl-header {
  display: flex; justify-content: space-between;
  align-items: baseline; margin-bottom: 4px;
}
.tl-title { font-size: 13px; font-weight: 500; color: var(--text); }
.tl-date { font-size: 11px; color: var(--text3); }
.tl-desc { font-size: 11px; color: var(--text2); margin-bottom: 6px; }
.tl-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.tl-tag {
  font-size: 10px; padding: 2px 8px;
  border: 0.5px solid var(--border);
  border-radius: 3px; color: var(--text3);
}

/* COMMIT LOG */
.commit-row {
  display: flex; gap: 10px; align-items: baseline;
  font-size: 12px; line-height: 2.2;
}
.commit-hash { color: var(--text3); font-size: 11px; min-width: 58px; }
.commit-msg { color: var(--text); flex: 1; }
.commit-repo {
  font-size: 10px; padding: 1px 6px; border-radius: 3px;
  background: var(--bg2); color: var(--text3); white-space: nowrap;
}
.commit-time { color: var(--text3); font-size: 11px; white-space: nowrap; }
.commit-wrap {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 1.5rem;
}

/* SIM LOG ROWS (homepage) */
.sim-row { display: flex; gap: 12px; line-height: 2.2; font-size: 12px; }
.sim-time { color: var(--text3); white-space: nowrap; }
.sim-msg { color: var(--text); }

/* FOOTER */
.site-footer {
  border-top: 0.5px solid var(--border);
  padding-top: 10px; font-size: 11px; color: var(--text3);
  display: flex; justify-content: space-between;
}
.site-footer .kw { color: var(--term); }

.bottom-nav-wrap {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  position: relative;
}
.bottom-nav-chip {
  display: flex;
  justify-content: center;
  margin-bottom: 0;
}
.bottom-nav-chip svg { display: block; }
.bottom-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
}
.bottom-nav a, .bottom-nav .current {
  padding: 4px 10px;
  border: 0.5px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.15s;
}
.bottom-nav a {
  color: var(--text3);
}
.bottom-nav a:hover {
  border-color: var(--purple);
  color: var(--purple);
}
.bottom-nav .current {
  color: var(--purple);
  border-color: var(--purple);
  background: var(--purple-bg);
}
.bottom-nav .sep { color: var(--text3); opacity: 0.3; }

/* DATASHEET HEADER */
.ds-header {
  border-bottom: 0.5px solid var(--border);
  padding-bottom: 1.5rem; margin-bottom: 2rem;
  display: flex; justify-content: space-between;
  align-items: flex-start;
}
.ds-meta { text-align: right; font-size: 11px; color: var(--text3); line-height: 1.8; }

/* CV STATUS */
.cv-status { color: var(--success); }

/* COURSE TAGS */
.course-tag {
  display: inline-block; font-size: 11px; font-family: var(--mono);
  padding: 3px 10px; border: 0.5px solid var(--border);
  border-radius: 4px; color: var(--text2); margin: 0 6px 6px 0;
}

/* ARCHITECTURE BREAKOUT — lets the SoC diagram span wider than site-wrap */
.arch-breakout {
  width: 90vw;
  max-width: 1100px;
  margin-left: 50%;
  transform: translateX(-50%);
}

/* CONTRIBUTION GRAPH */
.contrib-wrap {
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 2rem;
  overflow-x: auto;
}
.contrib-wrap img {
  width: 100%;
  display: block;
  border-radius: 4px;
}

/* RESPONSIVE */
@media (max-width: 600px) {
  .site-wrap { padding: 1.5rem 1rem 3rem; }
  .hero-row { flex-direction: column-reverse; text-align: center; gap: 1.2rem; }
  .chip-frame { width: 140px; height: 140px; }
  .nav-right { gap: 10px; }
  .ds-header { flex-direction: column; gap: 8px; }
  .ds-meta { text-align: left; }
  .commit-repo { display: none; }
  .commit-time { font-size: 10px; }
  .blog-meta { gap: 8px; }
  .tl-header { flex-direction: column; gap: 2px; }
  .proj-card-stats { flex-wrap: wrap; gap: 10px; }
  .skill-label { min-width: 90px; font-size: 11px; }
}