/* CallMeHFK — terminal-geek chrome. Content lives in index.html. */
:root {
  color-scheme: dark;
  --bg: #0a0e13;
  --bg-elev: #0d1117;
  --panel: #111821;
  --panel-2: #161b22;
  --line: #30363d;
  --line-soft: #21262d;
  --text: #c9d1d9;
  --muted: #8b949e;
  --bright: #f0f6fc;
  --accent: #e06a2d;
  --accent-dim: rgba(224, 106, 45, 0.14);
  --accent-glow: rgba(224, 106, 45, 0.45);
  --green: #3fb950;
  --green-dim: rgba(63, 185, 80, 0.12);
  --blue: #79c0ff;
  --violet: #d2a8ff;
  --comment: #8b949e;
  --quote: #b7c0ca;
  --danger: #ff5f56;
  --warn: #ffbd2e;
  --ok: #27c93f;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    monospace;
  --radius: 8px;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(48, 54, 61, 0.6);
  --scan: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    rgba(255, 255, 255, 0.018) 2px,
    rgba(255, 255, 255, 0.018) 3px
  );
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  scroll-behavior: smooth;
  scroll-padding-top: 1.5rem;
}

body {
  margin: 0;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01" 0, "calt" 1;
  background:
    radial-gradient(ellipse 90% 42% at 50% -8%, rgba(224, 106, 45, 0.09), transparent 52%),
    radial-gradient(circle at 86% 0%, #151d27 0, var(--bg) 40rem);
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--scan);
  opacity: 0.85;
}

body::after {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 41;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.28) 100%);
}

::selection {
  background: rgba(224, 106, 45, 0.38);
  color: #fff;
}

a {
  color: var(--blue);
  text-decoration: none;
  text-underline-offset: 0.18em;
}

a:hover { text-decoration: underline; }

a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

code {
  font-family: inherit;
  font-size: 0.88em;
  color: var(--blue);
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 0.05em 0.38em;
}

/* ── app chrome ── */
.shell {
  width: min(920px, calc(100% - 2rem));
  margin: clamp(1.25rem, 5vw, 3rem) 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17, 24, 33, 0.98), rgba(13, 17, 23, 0.98));
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.appbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.9rem;
  background: #0f141b;
  border-bottom: 1px solid var(--line);
}

.traffic {
  display: flex;
  align-items: center;
  gap: 0.38rem;
  flex-shrink: 0;
}

.traffic i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}

.traffic .r { background: var(--danger); }
.traffic .y { background: var(--warn); }
.traffic .g { background: var(--ok); }

.appbar-title {
  flex: 1;
  text-align: center;
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.appbar-meta {
  color: var(--accent);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.screen {
  padding: clamp(1.15rem, 3.6vw, 2.6rem);
  padding-bottom: 1.6rem;
}

/* ── caret ── */
.caret {
  display: inline-block;
  width: 0.58ch;
  height: 1.05em;
  margin-left: 0.2em;
  vertical-align: -0.12em;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: blink 1.15s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ── hero ── */
.hero { text-align: center; }

.hero-frame {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: #0b0f14;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.hero-svg {
  display: block;
  width: 100%;
  height: auto;
}

.tty { display: none; }

.tty-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0.5rem 0.75rem;
  background: #111821;
  border-bottom: 1px solid var(--line);
}

.tty-bar .traffic {
  position: absolute;
  left: 0.75rem;
}

.tty-title {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.tty-body {
  padding: 0.85rem 0.9rem 1rem;
  text-align: left;
  font-size: 0.82rem;
  line-height: 1.7;
}

.tty-body .cmd { color: var(--green); }

.tty-body .stdout-ok {
  color: var(--green);
  margin: 0.1rem 0 0.55rem;
}

.tty-body .stdout-accent {
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
  margin: 0.1rem 0 0.55rem;
}

.handle {
  margin: 1.35rem 0 0.3rem;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
}

.tagline {
  margin: 0.2rem 0 0;
  color: var(--bright);
  font-size: 1.05rem;
  font-weight: 500;
}

.tagline strong { font-weight: 600; }

.quote {
  margin: 1.55rem auto 0;
  max-width: 46rem;
  padding: 0.85rem 1rem 0.85rem 1.15rem;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent);
  background: rgba(224, 106, 45, 0.045);
  color: var(--quote);
  text-align: left;
  border-radius: 0 6px 6px 0;
}

.quote p { margin: 0.2rem 0; }

.quote p::before {
  content: "# ";
  color: var(--accent);
}

/* ── sections ── */
section { margin-top: 2.85rem; }

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  margin: 0 0 1.15rem;
  flex-wrap: wrap;
}

.sec-head .prompt {
  color: var(--green);
  font-weight: 500;
  font-size: 0.95rem;
}

.sec-head h2 {
  margin: 0;
  color: var(--bright);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sec-head .tag {
  padding: 0.08rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.45;
  letter-spacing: 0.04em;
}

.sec-head::after {
  content: "";
  flex: 1 1 2.5rem;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
  align-self: center;
}

h3.sub {
  margin: 1.7rem 0 0.75rem;
  color: var(--bright);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

h3.sub::before {
  content: "# ";
  color: var(--muted);
}

/* ── diagrams ── */
.diagram-frame {
  margin: 0 0 1.45rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #080b0f;
  overflow: auto;
}

.diagram-img {
  display: block;
  width: 100%;
  max-width: 760px;
  height: auto;
  margin: 0 auto;
}

/* ── project tables ── */
.tbl-wrap {
  overflow-x: auto;
  margin: 0 0 1.45rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0b0f14;
}

table.project {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

table.project th {
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background: #10161d;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: left;
  white-space: nowrap;
}

table.project td {
  padding: 0.78rem 0.85rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  line-height: 1.65;
}

table.project tr:last-child td { border-bottom: none; }

table.project tbody tr:hover td {
  background: var(--accent-dim);
}

table.project td:first-child {
  white-space: nowrap;
  font-weight: 600;
  color: var(--bright);
}

table.project.self td:first-child {
  box-shadow: inset 3px 0 0 var(--green);
}

table.project.adapt td:first-child {
  box-shadow: inset 3px 0 0 var(--accent);
}

table.project td.venue {
  color: var(--muted);
  font-size: 0.86rem;
}

/* ── capability grid ── */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.7rem;
  counter-reset: cap;
}

.cap {
  position: relative;
  padding: 0.9rem 1rem 0.95rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(165deg, rgba(17, 24, 33, 0.95), rgba(13, 17, 23, 0.95));
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

.cap:hover {
  border-color: rgba(224, 106, 45, 0.55);
  box-shadow: 0 0 0 1px rgba(224, 106, 45, 0.12), 0 8px 24px rgba(0, 0, 0, 0.2);
}

.cap-title {
  color: var(--bright);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.32rem;
}

.cap-title::before {
  counter-increment: cap;
  content: counter(cap, decimal-leading-zero) " ";
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.cap-evidence {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.65;
}

/* ── tech stack ── */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0b0f14;
}

.badges img {
  display: block;
  height: 20px;
}

/* ── principles terminal ── */
.terminal {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #080b0f;
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background: #10161d;
}

.terminal-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: block;
}

.terminal-bar .r { background: var(--danger); }
.terminal-bar .y { background: var(--warn); }
.terminal-bar .g { background: var(--ok); }

.terminal-bar span {
  margin-left: 0.45rem;
  color: var(--muted);
  font-size: 0.74rem;
}

.rules {
  padding: 0.9rem 1.1rem 1.05rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.62;
}

.rule {
  display: grid;
  grid-template-columns: 2.35rem 12rem 1fr;
  gap: 0.55rem;
  padding: 0.3rem 0;
  align-items: baseline;
}

.rule .num { color: var(--muted); }
.rule .rname { color: var(--bright); font-weight: 600; }
.rule .rtext { color: var(--quote); }

.rules-end {
  margin-top: 0.55rem;
  color: var(--green);
  font-size: 0.8rem;
}

/* ── current ── */
ul.current {
  margin: 0;
  padding: 0.7rem 0.95rem 0.8rem 1.05rem;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0b0f14;
}

ul.current li {
  margin: 0.5rem 0;
  line-height: 1.7;
  padding-left: 1.15rem;
  position: relative;
}

ul.current li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

ul.current li strong { color: var(--bright); font-weight: 600; }

/* ── footer ── */
.footnote {
  margin: 2.4rem 0 0;
  padding: 0.85rem 0.2rem 0.15rem;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
  font-style: italic;
}

.statusbar {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.38rem 0.9rem;
  border-top: 1px solid var(--line);
  background: #0c1117;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.statusbar .ok { color: var(--green); }

/* ── responsive ── */
@media (max-width: 720px) {
  .rule {
    grid-template-columns: 2.2rem 1fr;
  }

  .rule .rtext {
    grid-column: 2;
  }
}

@media (max-width: 640px) {
  .shell {
    width: calc(100% - 0.9rem);
    margin: 0.45rem auto 1rem;
  }

  .screen { padding: 1rem 0.9rem 1.15rem; }

  .cap-grid { grid-template-columns: 1fr; }

  table.project thead { display: none; }

  table.project tr {
    display: block;
    padding: 0.7rem 0.15rem 0.8rem;
    border-bottom: 1px solid var(--line);
  }

  table.project tr:last-child { border-bottom: none; }

  table.project td {
    display: block;
    padding: 0.22rem 0.85rem 0.22rem 1.05rem;
    border-bottom: none;
    white-space: normal;
  }

  table.project td:first-child {
    white-space: normal;
    padding-top: 0.15rem;
    margin-bottom: 0.2rem;
  }

  table.project td[data-label]::before {
    content: attr(data-label) " · ";
    color: var(--muted);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  table.project td:first-child[data-label]::before { content: none; }

  .quote { padding: 0.7rem 0.8rem 0.7rem 0.9rem; }

  .statusbar { display: none; }

  .hero-svg { display: none; }

  .tty { display: block; }

  .diagram-img {
    min-width: 620px;
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .caret,
  .hero-frame img {
    animation: none !important;
  }

  body::before { opacity: 0.35; }
}