/* piotr-marciniak.com — shared styles
   Four colour themes selected via data-theme on <html>.
   ─────────────────────────────────────────────────────── */

/* fonts (shared across all themes) */
:root {
  --sans: Inter, Helvetica, "Helvetica Neue", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* stone — warm parchment */
html[data-theme="stone"] {
  --bg:       #efede6;
  --ink:      #14120e;
  --muted:    #6c685e;
  --dim:      #a3a093;
  --panel:    #f7f5ef;
  --panel-hi: #ffffff;
  --rule:     #d8d4c7;
  --accent:   #1f6b3a;
  --cv-ink:   #f7f5ef;
  color-scheme: light;
}

/* dark — near-black terminal */
html[data-theme="dark"] {
  --bg:       #0c0d0e;
  --ink:      #e6e4df;
  --muted:    #7b7a75;
  --dim:      #555450;
  --panel:    #141516;
  --panel-hi: #1a1b1d;
  --rule:     #222325;
  --accent:   #d7ff64;
  --cv-ink:   #0c0d0e;
  color-scheme: dark;
}

/* ocean — deep navy */
html[data-theme="ocean"] {
  --bg:       #0b1622;
  --ink:      #c8dff0;
  --muted:    #4e708a;
  --dim:      #2e4558;
  --panel:    #0f1e30;
  --panel-hi: #142540;
  --rule:     #182e44;
  --accent:   #22d3ee;
  --cv-ink:   #0b1622;
  color-scheme: dark;
}

/* grain — warm sepia (default) */
:root, html[data-theme="grain"] {
  --bg:       #f5ede0;
  --ink:      #2c1d08;
  --muted:    #886040;
  --dim:      #c4a070;
  --panel:    #fdf5e6;
  --panel-hi: #fffaf2;
  --rule:     #e8d4b0;
  --accent:   #c47a0a;
  --cv-ink:   #fdf5e6;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

/* ── Top terminal bar ───────────────────────────────────────── */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 28px;
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
}
.topbar .left  { display: flex; gap: 18px; align-items: center; }
.topbar .left .host  { color: var(--muted); }
.topbar .left .path  { color: var(--dim); }
.topbar .left .sep   { color: var(--muted); }
.topbar .left .ver   { color: var(--muted); }
.topbar .right { display: flex; gap: 22px; }
.topbar .right a {
  text-decoration: none;
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}
.topbar .right a:hover { color: var(--ink); }

/* ── Theme switcher dots (top-left) ─────────────────────────── */
.theme-switcher { display: flex; gap: 7px; align-items: center; }
.theme-label {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--dim); margin-left: 3px; user-select: none;
}
.theme-dot {
  width: 9px; height: 9px; border-radius: 50%;
  border: none; padding: 0; cursor: pointer;
  opacity: .3; transition: opacity .15s, transform .15s;
  flex-shrink: 0;
}
.theme-dot:hover   { opacity: .65; }
.theme-dot.active  { opacity: 1; transform: scale(1.2); }
.theme-dot[data-theme="stone"] { background: #1f6b3a; }
.theme-dot[data-theme="dark"]  { background: #d7ff64; }
.theme-dot[data-theme="ocean"] { background: #22d3ee; }
.theme-dot[data-theme="grain"] { background: #c47a0a; }
.theme-dot.active[data-theme="stone"] { box-shadow: 0 0 7px #1f6b3a; }
.theme-dot.active[data-theme="dark"]  { box-shadow: 0 0 7px #d7ff64; }
.theme-dot.active[data-theme="ocean"] { box-shadow: 0 0 7px #22d3ee; }
.theme-dot.active[data-theme="grain"] { box-shadow: 0 0 7px #c47a0a; }

/* ── Bento grid ─────────────────────────────────────────────── */
.grid {
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.cell {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.span-4  { grid-column: span 4; }
.span-5  { grid-column: span 5; }
.span-7  { grid-column: span 7; }
.span-8  { grid-column: span 8; }
.span-12 { grid-column: span 12; }

/* ── Labels / micro ─────────────────────────────────────────── */
.micro {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}

/* ── Identity cell ──────────────────────────────────────────── */
.identity { padding: 36px 36px 32px; position: relative; }
.identity h1 {
  font-family: var(--sans);
  font-weight: 700; font-size: 72px; line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 18px 0 0;
}
.identity .tagline {
  font-family: var(--mono);
  color: var(--muted); margin-top: 14px; font-size: 14px;
}
.identity .tagline .gt { color: var(--accent); }
.identity p {
  font-family: var(--sans);
  font-size: 18px; line-height: 1.5; margin-top: 28px; max-width: 560px;
  color: var(--ink);
}

.formulas {
  position: absolute; right: 32px; top: 32px;
  font-family: var(--mono);
  color: var(--dim); font-size: 11px; line-height: 1.7;
  border-left: 1px solid var(--rule);
  padding-left: 14px;
  white-space: pre;
}
.formulas .sym { color: var(--muted); }

/* ── Status cell ────────────────────────────────────────────── */
.status { padding: 24px 26px; display: flex; flex-direction: column; gap: 14px; }
.status .row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px;
}
.status .row .k {
  color: var(--muted); letter-spacing: .1em; text-transform: uppercase; font-size: 10.5px;
}
.status .row .v { color: var(--ink); display: flex; align-items: center; }
.status .row a { text-decoration: none; color: var(--ink); border-bottom: 1px dashed var(--muted); }
.status .spacer { flex: 1; }
.status .cv {
  font-family: var(--mono); font-size: 12px; text-align: center;
  padding: 12px 14px;
  background: var(--accent);
  color: var(--panel);
  text-decoration: none; letter-spacing: .06em; font-weight: 600;
}
.status .cv { color: var(--cv-ink); }

/* ── Currently 2x2 ──────────────────────────────────────────── */
.now {
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr 1fr;
}
.now .head {
  grid-column: span 2;
  padding: 18px 22px 10px;
  border-bottom: 1px solid var(--rule);
}
.now .item {
  padding: 22px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 10px;
}
.now .item.a { border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.now .item.b { border-bottom: 1px solid var(--rule); justify-content: flex-start; }
.now .item.c { border-right: 1px solid var(--rule); }
.now .item .v {
  font-family: var(--sans);
  font-size: 16px; line-height: 1.35;
  color: var(--ink);
}
.now-list {
  font-family: var(--sans);
  font-size: 16px; line-height: 1.35;
  color: var(--ink); margin: 6px 0 0; padding-left: 16px;
}
.now-list li { padding: 1px 0; }

/* ── About ──────────────────────────────────────────────────── */
.about { padding: 32px; }
.about p {
  font-family: var(--sans);
  font-size: 16px; line-height: 1.6; margin: 16px 0 0; color: var(--ink);
}
.about p + p { margin-top: 14px; }
.about .coursework {
  list-style: none; padding: 0; margin: 12px 0 0;
  font-family: var(--mono); font-size: 12.5px;
  columns: 2; column-gap: 24px;
}
.about .coursework li { padding: 5px 0; color: var(--ink); }
.about .coursework .mark { color: var(--accent); }
.about .sub { margin-top: 26px; }

/* ── Work log ───────────────────────────────────────────────── */
.worklog { padding: 0; }
.worklog .head {
  padding: 22px 28px 12px;
  display: flex; justify-content: space-between;
}
.worklog .columns {
  display: grid;
  grid-template-columns: 60px 140px 1.2fr 2fr 30px;
  gap: 20px;
  padding: 10px 28px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.worklog .columns span {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}
.worklog .columns .arrow { text-align: right; }
.worklog a.entry {
  display: grid;
  grid-template-columns: 60px 140px 1.2fr 2fr 30px;
  gap: 20px;
  padding: 18px 28px;
  text-decoration: none; color: var(--ink);
  align-items: baseline;
  background: transparent;
}
.worklog a.entry + a.entry { border-top: 1px solid var(--rule); }
.worklog a.entry .n       { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.worklog a.entry .project { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: .04em; }
.worklog a.entry .title   { font-family: var(--sans); font-size: 20px; font-weight: 600; }
.worklog a.entry .summary { font-family: var(--sans); font-size: 14px; color: var(--muted); line-height: 1.45; }
.worklog a.entry .arrow   { font-family: var(--mono); font-size: 14px; color: var(--accent); text-align: right; }

/* ── Contact ────────────────────────────────────────────────── */
.contact { padding: 40px 32px; }
.contact .heading {
  font-family: var(--sans);
  font-size: 20px; font-weight: 600; margin-top: 16px;
  letter-spacing: -0.01em;
}
.contact .heading a { color: var(--accent); text-decoration: none; }

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  padding: 18px 28px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
  display: flex; justify-content: space-between;
}

/* ──────────────────────────────────────────────────────────────
   SUB-PAGE SPECIFIC
   ────────────────────────────────────────────────────────────── */

.subhead { padding: 36px 36px 28px; }
.subhead .proj-line {
  display: flex; gap: 16px; align-items: baseline; margin-bottom: 18px;
}
.subhead .proj-line .k {
  font-family: var(--mono);
  font-size: 11px; color: var(--muted);
  letter-spacing: .12em; text-transform: uppercase;
}
.subhead .proj-line .v {
  font-family: var(--mono);
  font-size: 12px; color: var(--muted); letter-spacing: .04em;
}
.subhead h1 {
  font-family: var(--sans);
  font-weight: 700; font-size: 56px; line-height: 1;
  margin: 0; letter-spacing: -0.03em;
}
.subhead .tagline {
  font-family: var(--sans);
  font-size: 18px; line-height: 1.5; margin-top: 20px;
  max-width: 720px; color: var(--ink);
}

/* modules grid — labeled columns of tags */
.modules { padding: 0; display: grid; }
.modules .mod {
  padding: 20px 24px;
  display: flex; flex-direction: column; gap: 12px;
  min-height: 92px;
}
.modules .mod + .mod { border-left: 1px solid var(--rule); }
.modules .mod .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.modules .mod .tag {
  font-family: var(--mono);
  font-size: 11px; padding: 3px 8px;
  border: 1px solid var(--rule); border-radius: 2px;
  color: var(--ink);
}

/* summary block */
.sum { padding: 32px; }
.sum p {
  font-family: var(--sans);
  font-size: 16px; line-height: 1.65;
  margin: 16px 0 0; max-width: 820px;
}
.sum p + p { margin-top: 14px; }

/* content block */
.content .head {
  padding: 22px 32px 12px;
  display: flex; justify-content: space-between;
}
.content section {
  padding: 22px 32px;
  border-top: 1px solid var(--rule);
}
.content h2 {
  font-family: var(--sans);
  font-weight: 600; font-size: 24px;
  margin: 8px 0 0;
  letter-spacing: -0.01em;
}
.content p {
  font-family: var(--sans);
  font-size: 15.5px; line-height: 1.7;
  margin: 0; max-width: 820px;
}
.content ul {
  font-family: var(--sans);
  font-size: 15px; line-height: 1.7;
  margin: 0; padding-left: 20px; max-width: 820px;
}
.content ul li { padding: 2px 0; }
.content pre {
  font-family: var(--mono);
  font-size: 12.5px; line-height: 1.6;
  margin: 10px 0 0;
  padding: 16px 18px;
  background: var(--bg);
  border: 1px solid var(--rule);
  overflow: auto;
  color: var(--ink);
  white-space: pre;
}
.content .figure-box {
  margin-top: 10px;
  border: 1px solid var(--rule);
  min-height: 220px;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  background-image: repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 12px);
}
.content .figcaption {
  font-family: var(--mono);
  margin-top: 10px;
  font-size: 11.5px; letter-spacing: .02em;
  color: var(--muted);
}
.content figure { margin: 0; }
.content figure img { width: 100%; height: auto; display: block; border: 1px solid var(--rule); }
.content .content-split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.content .split-figs { display: flex; flex-direction: column; gap: 20px; }
@media (max-width: 900px) { .content .content-split { grid-template-columns: 1fr; } }
.content .note { border-left: 2px solid var(--accent); }
.content .note .label {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 6px;
}

/* sub-page nav cell (back link) */
.subnav {
  padding: 28px 32px;
  display: flex; justify-content: space-between; align-items: center;
}
.subnav a {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
}
.subnav .trail {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}

/* ── Responsive (phones) ────────────────────────────────────── */
@media (max-width: 900px) {
  .grid { padding: 16px; gap: 12px; }
  .span-4, .span-5, .span-7, .span-8, .span-12 { grid-column: span 12; }
  .identity h1    { font-size: 44px; }
  .subhead h1     { font-size: 36px; }
  .formulas       { display: none; }
  .now            { grid-template-columns: 1fr 1fr; }
  .worklog .columns,
  .worklog a.entry {
    grid-template-columns: 40px 1fr;
    row-gap: 6px;
  }
  .worklog .columns .hide-sm,
  .worklog a.entry .hide-sm { display: none; }
  .about .coursework { columns: 1; }
  .modules { grid-template-columns: 1fr !important; }
  .modules .mod + .mod { border-left: none; border-top: 1px solid var(--rule); }
  .topbar { padding: 12px 16px; flex-wrap: wrap; gap: 10px; }
  .topbar .left .path, .topbar .left .ver { display: none; }
}
