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

:root {
  --bg:        #0b0d10;
  --pane-bg:   #0f1114;
  --fg:        #d4d4d4;
  --muted:     #7a8087;
  --dim:       #5a5f66; /* bumped from #4a4e53 for WCAG AA on bg */
  --line:      #1f2429;
  --line-hl:   #2a3036;
  --green:     #4ade80;
  --cyan:      #22d3ee;
  --yellow:    #facc15;
  --magenta:   #e879f9;
  --red:       #f87171;
  --blue:      #60a5fa;
  --orange:    #fb923c;
  --mono:      "JetBrains Mono", "Fira Code", "SF Mono", ui-monospace,
               Menlo, Consolas, monospace;

  --tap:       44px;    /* WCAG AAA minimum tap target */
  --pad:       16px;
  --pad-sm:    10px;
}

html { background: var(--bg); min-height: 100vh; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  min-height: 100vh;
  padding:
    max(var(--pad), env(safe-area-inset-top))
    max(var(--pad), env(safe-area-inset-right))
    max(var(--pad), env(safe-area-inset-bottom))
    max(var(--pad), env(safe-area-inset-left));
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

/* Keyboard focus — visible ring for keyboard users, hidden for mouse */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── tmux-like outer status ── */
.session {
  max-width: 1280px;
  margin: 0 auto;
  border: 1px solid var(--line-hl);
  border-radius: 4px;
  overflow: hidden;
  container-type: inline-size;
  container-name: session;
}

.session-bar {
  display: flex;
  flex-wrap: wrap;
  background: #12151a;
  border-bottom: 1px solid var(--line-hl);
  font-size: 11.5px;
  color: var(--muted);
  padding: 7px 12px;
  gap: 6px 14px;
  letter-spacing: 0.02em;
}

.session-bar .bar-label { color: var(--green); font-weight: 700; white-space: nowrap; }
.session-bar .tag { color: var(--muted); white-space: nowrap; }
.session-bar .tag.on { color: var(--cyan); }
.session-bar .tag .n { color: var(--yellow); margin-right: 4px; }
.session-bar .spacer { flex: 1 0 0; }
.session-bar .uptime { color: var(--muted); white-space: nowrap; }

/* ── pane grid ── */
.panes {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: auto auto auto;
  grid-template-areas:
    "neofetch neofetch"
    "ls       pulse"
    "contact  pulse";
  gap: 0;
}

.pane {
  background: var(--pane-bg);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 0;
  position: relative;
  overflow: hidden;
}

/* map legacy class names to grid areas */
.pane.col-span-2 { grid-area: neofetch; }
.pane.top-right  { grid-area: ls; }
.pane.bot-left   { grid-area: pulse; }
.pane.bot-right  { grid-area: contact; }

/* edge borders: right-edge panes drop right border, bottom-edge panes drop bottom */
.pane.col-span-2 { border-right: none; }
.pane.bot-left   { border-right: none; border-bottom: none; }
.pane.bot-right  { border-bottom: none; }

/* Container query: when the session is narrower than pulse needs,
   stack everything instead of letting content scroll internally. */
@container session (max-width: 1100px) {
  .panes {
    grid-template-columns: 1fr;
    grid-template-areas:
      "neofetch"
      "ls"
      "pulse"
      "contact";
  }
  .pane { border-right: none; border-bottom: 1px solid var(--line); }
  .pane.bot-right { border-bottom: none; }
  .pane.bot-left  { border-bottom: 1px solid var(--line); border-right: none; }
}

/* Viewport fallback for ancient browsers without container query support. */
@supports not (container-type: inline-size) {
  @media (max-width: 1140px) {
    .panes {
      grid-template-columns: 1fr;
      grid-template-areas:
        "neofetch"
        "ls"
        "pulse"
        "contact";
    }
    .pane { border-right: none; border-bottom: 1px solid var(--line); }
    .pane.bot-right { border-bottom: none; }
    .pane.bot-left  { border-bottom: 1px solid var(--line); border-right: none; }
  }
}

.pane-hdr {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: #0d0f12;
  gap: 0 10px;
}

.pane-hdr .idx {
  color: var(--bg);
  background: var(--green);
  padding: 1px 6px;
  margin-right: 10px;
  font-weight: 700;
  font-size: 10.5px;
}

.pane-hdr.cyan .idx { background: var(--cyan); }
.pane-hdr.yellow .idx { background: var(--yellow); }
.pane-hdr.magenta .idx { background: var(--magenta); }
.pane-hdr.orange .idx { background: var(--orange); }

.pane-hdr .title { color: var(--fg); font-weight: 500; }
.pane-hdr .meta { color: var(--muted); font-size: 10.5px; min-width: 0; }
.pane-hdr .dots { margin-left: auto; color: var(--dim); letter-spacing: 0.4em; }

.pane-body {
  padding: 14px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  max-height: 100%;
  overflow: auto;
}

/* ── neofetch pane ── */
.neofetch {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
}

/* ── ASCII portrait (generated client-side by effects.js) ── */
.ascii-avatar {
  font-family: var(--mono);
  font-size: 5.5px;
  line-height: 1;
  letter-spacing: 0;
  color: var(--green);
  white-space: pre;
  margin: 0;
  padding: 0;
  text-shadow: 0 0 4px rgba(74, 222, 128, 0.3);
  align-self: center !important;
}

.neofetch .info { font-size: 12.5px; line-height: 1.75; }

.neofetch .top {
  color: var(--yellow);
  font-weight: 700;
  margin-bottom: 2px;
}
.neofetch .top .at { color: var(--muted); }
.neofetch .top .host { color: var(--cyan); }

.neofetch .divider {
  color: var(--dim);
  letter-spacing: 0;
  margin-bottom: 6px;
}

.neofetch .row { display: flex; gap: 8px; }
.neofetch .row .k { color: var(--green); width: 82px; flex-shrink: 0; font-weight: 600; }
.neofetch .row .v { color: var(--fg); }
.neofetch .row .v .hl { color: var(--cyan); }
.neofetch .row .v .acc { color: var(--yellow); }

.neofetch .bio-row {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line-hl);
  max-width: 64ch;
  color: #c6c6c6;
  font-size: 12.5px;
  line-height: 1.7;
}

.neofetch .bio-row strong { color: var(--yellow); font-weight: 700; }

.neofetch .color-dots {
  margin-top: 24px;
  display: flex;
  gap: 4px;
}

.neofetch .color-dots span {
  width: 18px;
  height: 12px;
  display: inline-block;
}

/* ── ls projects pane ── */
.ls-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.ls-table th, .ls-table td {
  text-align: left;
  padding: 4px 10px 4px 0;
  vertical-align: baseline;
}

.ls-table th {
  font-weight: 400;
  color: var(--dim);
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ls-table tbody tr { border-bottom: 1px dashed var(--line); }
.ls-table tbody tr:last-child { border-bottom: none; }

.ls-row .perm { color: var(--dim); white-space: nowrap; }
.ls-row .name { color: var(--cyan); font-weight: 500; }
.ls-row .name a {
  color: var(--cyan);
  text-decoration: none;
  display: inline-block;
  padding: 6px 0;           /* bigger tap target */
  margin: -6px 0;           /* don't stretch row visually */
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.ls-row .name a:hover,
.ls-row .name a:focus-visible { color: var(--yellow); border-bottom-color: var(--yellow); }
.ls-row .tech { color: var(--muted); font-size: 11.5px; }
.ls-row .tech span + span::before { content: " · "; color: var(--dim); }

.ls-row.has-children { color: var(--green); }
.ls-row.has-children .name::before { content: "▾ "; color: var(--green); }

.ls-variants {
  padding-left: 24px;
  font-size: 11.5px;
  border-left: 1px solid var(--line-hl);
  margin: 2px 0 6px 4px;
}

.ls-variants .lsv {
  padding: 4px 0;
  display: flex;
  gap: 10px;
  color: var(--muted);
}

.ls-variants .lsv a {
  color: var(--blue);
  text-decoration: none;
  padding: 4px 0;
  margin: -4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.ls-variants .lsv a:hover,
.ls-variants .lsv a:focus-visible { color: var(--cyan); border-bottom-color: var(--cyan); }
.ls-variants .lsv .lbl { color: var(--magenta); min-width: 28px; }

/* ── pulse hybrid pane (heatmap + stats + langs) ──
   Default layout: vertically stacked. Re-arranged at specific breakpoints below. */
.hybrid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "heatmap"
    "stats"
    "langs";
  gap: 22px;
}

.hybrid > div:nth-child(1) { grid-area: heatmap; min-width: 0; }
.hybrid > div:nth-child(2) { grid-area: stats;   min-width: 0; }
.hybrid > div:nth-child(3) { grid-area: langs;   min-width: 0; }

/* 2nd breakpoint: panes are stacked (container ≤1100) but viewport is still
   wide enough for the heatmap (≥800px). Heatmap + stats go side-by-side,
   languages span full width below. */
@container session ((max-width: 1100px) and (min-width: 801px)) {
  .pane.bot-left .hybrid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    grid-template-areas:
      "heatmap stats"
      "langs   langs";
    column-gap: 28px;
    row-gap: 24px;
  }
}

.hybrid-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 8px;
  padding-bottom: 5px;
  border-bottom: 1px dashed var(--line);
}

.hybrid-label .hash { color: var(--green); margin-right: 6px; }

/* year heatmap */
.yearmap {
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.55;
  color: var(--green);
  white-space: pre;
  overflow: hidden; /* no internal scroll — layout drops to single-col instead */
  text-shadow: 0 0 3px rgba(74, 222, 128, 0.25);
  letter-spacing: 1px;
  /* center the graph block inside its container (content-width + auto margin) */
  width: max-content;
  max-width: 100%;
  margin-inline: auto;
}

.yearmap .row { display: block; padding: 1px 0; }
.yearmap .row .lbl {
  color: var(--muted);
  text-shadow: none;
  margin-right: 8px;
  display: inline-block;
  width: 28px;
  letter-spacing: 0;
}
.yearmap .months {
  display: block;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0;
  margin-top: 4px;
  padding-left: 36px;
  text-shadow: none;
}
.yearmap .legend {
  margin-top: 10px;
  font-size: 10.5px;
  color: var(--muted);
  text-shadow: none;
  display: flex;
  gap: 8px;
  align-items: center;
  letter-spacing: 0;
}
.yearmap .legend .swatch { color: var(--green); text-shadow: 0 0 3px rgba(74, 222, 128, 0.25); }
.yearmap .loading, .yearmap .err {
  color: var(--muted);
  font-style: italic;
  font-size: 11.5px;
  text-shadow: none;
  letter-spacing: 0;
  padding: 8px 0;
}

/* neofetch-style stats */
.ntop { font-family: var(--mono); font-size: 12px; line-height: 1.75; }
.ntop .head {
  color: var(--green);
  font-weight: 700;
  margin-bottom: 2px;
  text-shadow: 0 0 4px rgba(74, 222, 128, 0.3);
}
.ntop .head .host { color: var(--cyan); }
.ntop .head .at { color: var(--muted); }
.ntop .divider { color: var(--dim); margin-bottom: 6px; letter-spacing: 0; }
.ntop .row { display: flex; gap: 10px; }
.ntop .k { color: var(--green); font-weight: 600; width: 110px; flex-shrink: 0; }
.ntop .v { color: var(--fg); }
.ntop .v .hl { color: var(--cyan); }
.ntop .v .acc { color: var(--yellow); }
.ntop .loading, .ntop .err { color: var(--muted); font-style: italic; font-size: 11.5px; }

/* language horizontal bars */
.langs { font-family: var(--mono); font-size: 12px; line-height: 1.6; }
.langs .head {
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.langs .row {
  display: grid;
  grid-template-columns: 110px 1fr 44px;
  gap: 12px;
  align-items: baseline;
  padding: 3px 0;
}
.langs .name { color: var(--fg); }
.langs .bar {
  font-size: 11.5px;
  letter-spacing: -1px;
  color: var(--green);
  text-shadow: 0 0 3px rgba(74, 222, 128, 0.25);
  overflow: hidden;
  white-space: nowrap;
}
.langs .bar .empty { color: var(--dim); text-shadow: none; }
.langs .pct { color: var(--yellow); text-align: right; }
.langs .loading, .langs .err { color: var(--muted); font-style: italic; font-size: 11.5px; }

/* ── contact pane ── */
.contact-list {
  list-style: none;
  font-size: 12.5px;
  line-height: 1.8;
}

.contact-list li { display: flex; align-items: baseline; gap: 10px; padding: 3px 0; }
.contact-list .dot { color: var(--green); }
.contact-list .k { color: var(--yellow); min-width: 82px; }

.contact-list a, .contact-list button {
  color: var(--cyan);
  background: none;
  border: none;
  padding: 8px 0;         /* bigger tap target, doesn't affect visible width */
  margin: -8px 0;
  font: inherit;
  font-family: var(--mono);
  cursor: pointer;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.contact-list a:hover, .contact-list button:hover,
.contact-list a:focus-visible, .contact-list button:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
}

/* ensure touch feedback on phones */
@media (hover: none) {
  .contact-list a:active, .contact-list button:active { color: var(--yellow); }
}

.contact-prompt {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
}

.contact-prompt .p { color: var(--green); }
.contact-prompt .cursor {
  display: inline-block;
  width: 8px;
  height: 13px;
  background: var(--green);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.5);
}

@keyframes blink { 0%,100%{opacity:1;} 50%{opacity:0;} }

/* email challenge */
.email-challenge-input {
  font-family: var(--mono);
  font-size: max(16px, 1em); /* 16px min avoids iOS focus-zoom */
  color: var(--yellow);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--yellow);
  outline: none;
  width: 2.6em;
  padding: 4px 2px;
  margin-left: 4px;
  line-height: 1;
}

.email-challenge-input:focus-visible {
  outline: none;
  border-bottom-width: 2px;
}

.email-challenge-input.wrong {
  border-bottom-color: var(--red);
  color: var(--red);
  animation: shake 0.35s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-3px); }
  75%      { transform: translateX(3px); }
}

/* ─────────────────────────────────────────────────────────────────────────
   Responsive layers
   ─────────────────────────────────────────────────────────────────────────
   · Pane grid collapse → handled by @container session (max-width: 1100px)
     above (with @supports fallback). Don't duplicate here.
   · Below 640px: comfort bump for touch — font, padding, table-stack.
   · Below 400px: shrink session-bar to essentials.
   ───────────────────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
  :root { --pad: 10px; }
  body {
    font-size: 14px;       /* more legible than 13 on small screens */
    line-height: 1.6;
  }
  .session-bar { font-size: 11px; padding: 8px 10px; }
  .pane-body { padding: 14px 14px; font-size: 13px; }

  /* Neofetch: shrink ascii bump it from the info */
  .neofetch { grid-template-columns: 1fr; gap: 14px; }
  .neofetch .info { font-size: 13px; }
  .neofetch .row .k { width: 70px; font-size: 11.5px; }
  .ascii-avatar { font-size: 6.5px; justify-self: center; align-self: start; }

  /* ls-table → stacked card-like rows (table markup preserved for accessibility) */
  .ls-table { display: block; }
  .ls-table thead { display: none; }
  .ls-table tbody, .ls-table tr { display: block; }
  .ls-table tr { padding: 10px 0; border-bottom: 1px dashed var(--line); }
  .ls-table tbody tr:last-child { border-bottom: none; }
  .ls-table td { display: block; padding: 2px 0; }

  .ls-row .perm {
    font-size: 10.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 2px;
  }
  .ls-row .name { font-size: 14px; }
  .ls-row .tech { color: var(--muted); font-size: 11.5px; }
  .ls-variants { margin-top: 4px; padding-left: 16px; }

  /* ntop stats: shrink key column */
  .ntop .k { width: 96px; font-size: 11.5px; }

  /* language bars: shrink name column, drop pct width */
  .langs .row { grid-template-columns: 90px 1fr 40px; gap: 10px; }

  /* contact list: more padding for touch, wider hit area */
  .contact-list { font-size: 14px; }
  .contact-list li { padding: 8px 0; gap: 12px; align-items: center; }
  .contact-list .k { min-width: 70px; font-size: 12.5px; }

  /* prevent the year heatmap from clipping on tiny screens: allow scroll here */
  .yearmap { overflow-x: auto; }
}

@media (max-width: 400px) {
  .session-bar .uptime { display: none; }
  .session-bar .tag { font-size: 10.5px; }
  .pane-hdr .meta { display: none; }  /* redundant w/ title under tight width */
  .ntop .k { width: 84px; }
  .langs .row { grid-template-columns: 76px 1fr 36px; gap: 8px; font-size: 11.5px; }

  /* Center the pulse pane's hybrid column at the narrowest width */
  .pane.bot-left > .pane-body {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .pane.bot-left .hybrid {
    width: 100%;
    max-width: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .contact-prompt .cursor { animation: none; opacity: 1; }
}