/* ==========================================================================
   Blueprint design system, shared by every page.
   Visual style adapted from "how browsers :has()" by Jhey Tompkins
   (codepen.io/jh3y/pen/xbqmjgW).
   ========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600;700;800&display=swap");

/* ---------- themes: blueprint (default), light, night ---------- */
:root,
:root[data-theme="blueprint"] {
  --paper: #0a3460;
  --paper-2: #0c3a6a;
  --paper-deep: #072546;
  --ink: #eaf4ff;
  --ink-2: rgba(234, 244, 255, 0.74);
  --ink-3: rgba(234, 244, 255, 0.42);
  --ink-4: rgba(234, 244, 255, 0.16);
  --line: rgba(234, 244, 255, 0.88);
  --on-ink: #072546;
  --cyan: #7fdcff;
  --amber: #ffc163;
  --red: #ff7d7d;
  --cyan-soft: rgba(127, 220, 255, 0.07);
  --amber-soft: rgba(255, 193, 99, 0.14);
  --grid-major: rgba(150, 200, 255, 0.13);
  --grid-minor: rgba(150, 200, 255, 0.06);
  --glow: #0f4a82;
  --sheet-bg: rgba(4, 26, 52, 0.4);
  --sheet-ring: rgba(9, 48, 90, 0.92);
  --fill: rgba(4, 26, 52, 0.55);
  --fill-2: rgba(234, 244, 255, 0.05);
  --shadow: rgba(0, 0, 0, 0.6);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --paper: #f4f0e6;
  --paper-2: #ebe5d6;
  --paper-deep: #e8e1cf;
  --ink: #0f2f57;
  --ink-2: rgba(15, 47, 87, 0.78);
  --ink-3: rgba(15, 47, 87, 0.45);
  --ink-4: rgba(15, 47, 87, 0.14);
  --line: rgba(15, 47, 87, 0.85);
  --on-ink: #f4f0e6;
  --cyan: #0b6aa8;
  --amber: #b25e00;
  --red: #b8322a;
  --cyan-soft: rgba(11, 106, 168, 0.07);
  --amber-soft: rgba(178, 94, 0, 0.12);
  --grid-major: rgba(15, 47, 87, 0.10);
  --grid-minor: rgba(15, 47, 87, 0.045);
  --glow: #fbf8f1;
  --sheet-bg: rgba(255, 255, 255, 0.55);
  --sheet-ring: rgba(236, 230, 214, 0.95);
  --fill: rgba(255, 255, 255, 0.7);
  --fill-2: rgba(15, 47, 87, 0.04);
  --shadow: rgba(15, 47, 87, 0.25);
  color-scheme: light;
}

:root[data-theme="night"] {
  --paper: #0d1218;
  --paper-2: #141b23;
  --paper-deep: #07090c;
  --ink: #e6edf5;
  --ink-2: rgba(230, 237, 245, 0.72);
  --ink-3: rgba(230, 237, 245, 0.38);
  --ink-4: rgba(230, 237, 245, 0.12);
  --line: rgba(230, 237, 245, 0.8);
  --on-ink: #07090c;
  --cyan: #7fdcff;
  --amber: #ffc163;
  --red: #ff7d7d;
  --cyan-soft: rgba(127, 220, 255, 0.05);
  --amber-soft: rgba(255, 193, 99, 0.12);
  --grid-major: rgba(127, 220, 255, 0.07);
  --grid-minor: rgba(127, 220, 255, 0.03);
  --glow: #122231;
  --sheet-bg: rgba(255, 255, 255, 0.02);
  --sheet-ring: rgba(16, 22, 30, 0.95);
  --fill: rgba(7, 9, 12, 0.6);
  --fill-2: rgba(230, 237, 245, 0.04);
  --shadow: rgba(0, 0, 0, 0.8);
  color-scheme: dark;
}

:root {
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --cond: "Barlow Condensed", "Roboto Condensed", "Arial Narrow", Arial, sans-serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  background: var(--paper-deep);
  color: var(--ink);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  font: 17px/1.6 var(--sans);
  color: var(--ink);
  background:
    linear-gradient(var(--grid-major) 1px, transparent 1px) 0 0 / 120px 120px,
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px) 0 0 / 120px 120px,
    linear-gradient(var(--grid-minor) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px) 0 0 / 24px 24px,
    radial-gradient(ellipse 120% 70% at 50% 0%, var(--glow) 0%, var(--paper) 50%, var(--paper-deep) 100%);
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
}

a { color: var(--cyan); text-underline-offset: 3px; }
b, strong { font-weight: 650; }

::selection { background: var(--amber); color: var(--on-ink); }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 10;
  padding: 10px 16px; background: var(--amber); color: var(--on-ink);
  font: 700 13px var(--mono); text-decoration: none;
}
.skip:focus { top: 16px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.hatch-bg { fill: var(--amber-soft); }
.hatch-line { stroke: var(--amber); stroke-width: 2.2; }
.arrow-head { fill: var(--ink); }
.arrow-head--cyan { fill: var(--cyan); }
.tick-mark { stroke: var(--ink-2); stroke-width: 1.4; }

/* smooth theme switch */
body, .sheet, .tb, .btn, input { transition: background-color 0.3s, color 0.3s, border-color 0.3s; }

/* ---------- top bar ---------- */
.topbar {
  max-width: 1200px; margin: 0 auto; padding: 18px 22px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  font: 600 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
}
.topbar__mark { color: var(--ink); font-weight: 800; }
.topbar__right { display: flex; align-items: center; gap: 12px; }
.topbar__user { display: flex; align-items: center; gap: 12px; min-width: 0; }
.topbar__who { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-transform: none; letter-spacing: 0.04em; }

/* ---------- sheets ---------- */
.doc {
  max-width: 1200px; margin: 0 auto;
  padding: 40px 22px 56px;
  display: grid; gap: 64px;
}

.sheet {
  position: relative;
  min-width: 0;
  padding: 84px clamp(18px, 4.6vw, 64px) 56px;
  border: 1.5px solid var(--line);
  background: var(--sheet-bg);
  box-shadow:
    0 0 0 7px var(--sheet-ring),
    0 0 0 8px var(--ink-4),
    0 30px 60px -30px var(--shadow);
}

/* Registration mark, bottom right */
.sheet::after {
  content: ""; position: absolute; right: 14px; bottom: 14px;
  width: 22px; height: 22px; border-radius: 50%;
  box-shadow: inset 0 0 0 1px var(--ink-3);
  background:
    linear-gradient(var(--ink-3), var(--ink-3)) center / 1px 100% no-repeat,
    linear-gradient(var(--ink-3), var(--ink-3)) center / 100% 1px no-repeat;
  pointer-events: none;
}

.strip {
  position: absolute; inset: 0 0 auto; height: 38px;
  display: grid; grid-template-columns: auto 1fr auto; align-items: stretch;
  border-bottom: 1px solid var(--ink-3);
  font: 600 11px/38px var(--mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-2);
}
/* Ruler ticks under the strip */
.strip::after {
  content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 11px;
  background:
    repeating-linear-gradient(90deg, var(--ink-3) 0 1px, transparent 1px 120px) 0 0 / 100% 11px no-repeat,
    repeating-linear-gradient(90deg, var(--ink-4) 0 1px, transparent 1px 24px) 0 0 / 100% 6px no-repeat;
  pointer-events: none;
}
.strip__no { padding: 0 16px; border-right: 1px solid var(--ink-3); color: var(--ink); font-weight: 800; }
.strip__title { padding: 0 16px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.strip__ref { padding: 0 16px; border-left: 1px solid var(--ink-3); white-space: nowrap; }
@media (max-width: 640px) { .strip__ref { display: none; } }

/* ---------- type ---------- */
h1, h2, h3 {
  font-family: var(--cond); font-weight: 700;
  text-transform: uppercase; text-wrap: balance;
}
h1 {
  margin: 14px 0 22px;
  font-size: clamp(44px, 5.8vw, 76px);
  line-height: 0.92; letter-spacing: 0.005em;
}
h1 .accent { color: var(--cyan); }
h2 { margin: 0 0 10px; font-size: clamp(30px, 3.8vw, 46px); line-height: 1; letter-spacing: 0.025em; }

.kicker {
  margin: 0;
  font: 600 12px/1.6 var(--mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan);
}
.lede {
  margin: 0; max-width: 40ch;
  font-size: clamp(18px, 2vw, 21px); line-height: 1.55; color: var(--ink-2);
}
.lede strong { color: var(--ink); }

.callout {
  display: flex; align-items: flex-start; gap: 14px;
  margin: 28px 0 0; max-width: 46ch; padding: 14px 18px;
  border: 1px dashed var(--cyan); background: var(--cyan-soft);
  font-size: 17px; line-height: 1.5;
}
.callout__tag {
  flex: none; margin-top: 3px; padding: 2px 8px;
  background: var(--cyan); color: var(--on-ink);
  font: 800 10.5px/1.6 var(--mono); letter-spacing: 0.16em; text-transform: uppercase;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 16px;
  border: 1px solid var(--ink-3); border-radius: 0;
  background: transparent; color: var(--ink);
  font: 700 11.5px/1.3 var(--mono); letter-spacing: 0.1em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn:hover { border-color: var(--cyan); color: var(--cyan); background: transparent; }
.btn--primary { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.btn--primary::after { content: "→"; display: inline-block; transition: transform 0.2s; }
.btn--primary:hover::after { transform: translateX(4px); }
.btn--small { padding: 6px 10px; font-size: 10.5px; }
.btn:disabled { opacity: 0.6; cursor: wait; }

/* ---------- title block ---------- */
.titleblock {
  margin: 56px 0 0;
  display: grid; grid-template-columns: 2.1fr 1.7fr 1fr 1.5fr; gap: 1px;
  background: var(--ink-3); border: 1.5px solid var(--line);
}
.tb { min-width: 0; padding: 10px 14px 12px; background: var(--paper); }
.tb dt { font: 600 10px var(--mono); letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-3); }
.tb dd { margin: 5px 0 0; font: 600 14.5px var(--mono); color: var(--ink); overflow-wrap: anywhere; }
.tb--title dd { font: 700 21px/1.1 var(--cond); text-transform: uppercase; letter-spacing: 0.03em; }
.tb--author dd { display: flex; align-items: center; gap: 12px; font-size: 16px; }
.monogram {
  flex: none; display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  border: 1.5px solid var(--ink); background: var(--paper-deep);
  font: 800 14px var(--mono); letter-spacing: 0.06em; color: var(--cyan);
}
@media (max-width: 760px) {
  .titleblock { grid-template-columns: 1fr 1fr; }
  .tb--title, .tb--author { grid-column: 1 / -1; }
}

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

@media (max-width: 520px) {
  .topbar { padding: 14px 16px 0; }
  .topbar__who { display: none; }
  .topbar__right > span:not([class]) { display: none; } /* "Cape Town, ZA" on the login page */
}

/* ==========================================================================
   Toggle switches, adapted from "Pure CSS Toggle Buttons" by Himalaya Singh
   (codepen.io/singhimalaya/pen/EdVzNL), redrawn in the blueprint palette.
   ========================================================================== */
:root { --spring: cubic-bezier(0.18, 0.89, 0.35, 1.15); }

/* ---------- on/off switch: <button class="sw" role="switch" aria-checked> ---------- */
.sw {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 0; border: 0; background: none; cursor: pointer;
  color: var(--ink);
  font: 700 11.5px var(--mono); letter-spacing: 0.1em; text-transform: uppercase;
  -webkit-tap-highlight-color: transparent;
}
.sw__track {
  position: relative; flex: none;
  width: 74px; height: 36px; border-radius: 100px;
  background: var(--fill-2);
  box-shadow: inset 0 0 0 1px var(--ink-3);
  transition: background 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}
.sw__track::before, .sw__track::after {           /* NO / YES words in the track */
  position: absolute; top: 50%; translate: 0 -50%;
  font: 800 9.5px var(--mono); letter-spacing: 0.06em; color: var(--ink-3);
  transition: opacity 0.2s;
}
.sw__track::before { content: attr(data-off); right: 9px; }
.sw__track::after  { content: attr(data-on);  left: 10px; opacity: 0; }
.sw__knob {
  position: absolute; top: 4px; left: 4px;
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ink-3); color: var(--on-ink);
  font: 800 13px/1 var(--mono);
  transition: left 0.3s var(--spring), background 0.3s ease, transform 0.4s var(--spring), width 0.25s ease;
}
.sw:active .sw__knob { width: 40px; border-radius: 100px; }             /* stretch, like button 3 */
.sw[aria-checked="true"]:active .sw__knob { left: 30px; }
.sw[aria-checked="true"] .sw__track { background: var(--cyan-soft); box-shadow: inset 0 0 0 1px var(--cyan); }
.sw[aria-checked="true"] .sw__track::before { opacity: 0; }
.sw[aria-checked="true"] .sw__track::after { opacity: 1; color: var(--cyan); }
.sw[aria-checked="true"] .sw__knob { left: 42px; background: var(--cyan); }
.sw:hover .sw__track { box-shadow: inset 0 0 0 1px var(--cyan); }
.sw:focus-visible { outline: none; }
.sw:focus-visible .sw__track { outline: 2px solid var(--amber); outline-offset: 3px; }

/* star variant: the knob flips over (button 5) and turns amber */
.sw--star .sw__track { perspective: 60px; overflow: visible; }
.sw--star .sw__knob { transform: rotateY(0); }
.sw--star[aria-checked="true"] .sw__track { background: var(--amber-soft); box-shadow: inset 0 0 0 1px var(--amber); }
.sw--star[aria-checked="true"] .sw__track::after { color: var(--amber); }
.sw--star[aria-checked="true"] .sw__knob { background: var(--amber); transform: rotateY(360deg); }

/* ---------- segmented switch: sliding block under 2 or 3 labels (buttons 12–13) ---------- */
.seg {
  --n: 2; --i: 0;
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: repeat(var(--n), 1fr);
  padding: 4px; border-radius: 2px;
  background: var(--fill-2);
  box-shadow: inset 0 0 0 1px var(--ink-3);
}
.seg button {
  position: relative; z-index: 1;
  padding: 8px 10px; border: 0; background: none; cursor: pointer;
  color: var(--ink-2);
  font: 800 10.5px var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
  transition: color 0.3s ease;
  white-space: nowrap;
}
.seg button[aria-checked="true"], .seg button[aria-selected="true"] { color: var(--on-ink); }
.seg button:focus-visible { outline: 2px solid var(--amber); outline-offset: -2px; }
.seg__knob {
  position: absolute; z-index: 0; top: 4px; bottom: 4px; left: 4px;
  width: calc((100% - 8px) / var(--n));
  translate: calc(100% * var(--i)) 0;
  background: var(--ink);
  border-radius: 2px;
  transition: translate 0.35s var(--spring), background 0.3s ease;
}
.seg:hover .seg__knob { background: var(--cyan); }
.seg--small button { padding: 6px 8px; font-size: 9.5px; }

/* site nav in the top bar */
.topbar__nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.topbar__nav a { color: var(--ink-2); text-decoration: none; }
.topbar__nav a:hover { color: var(--cyan); }
.topbar__nav a[aria-current="page"] { color: var(--ink); box-shadow: 0 2px 0 var(--amber); }
@media (max-width: 640px) { .topbar__nav a:not([aria-current]) { display: none; } }

@media (max-width: 520px) {
  .topbar { flex-wrap: wrap; row-gap: 10px; }
  .topbar__right, .topbar__user { flex-wrap: wrap; row-gap: 8px; }
}

/* ==========================================================================
   Floating pill navbar (inspired by martinpriotti.dev), blueprint palette.
   Sits in its own slot in the top bar; floats only once the top bar has scrolled away,
   so it never covers the theme switch or account buttons.
   ========================================================================== */
.topbar { gap: 16px; }
.pillnav-slot { flex: 1 1 auto; display: flex; justify-content: center; min-width: 0; height: 44px; }
.pillnav {
  position: relative; z-index: 800;
  display: flex; align-items: center; padding: 3px;
  border-radius: 24px;
  background: color-mix(in srgb, var(--paper) 62%, transparent);
  -webkit-backdrop-filter: blur(12.5px) saturate(1.2); backdrop-filter: blur(12.5px) saturate(1.2);
  box-shadow: inset 0 0 0 1px var(--ink-4);
  transition: box-shadow 0.3s, background 0.3s;
}
.pillnav.is-floating {
  position: fixed; top: 14px; left: 50%; translate: -50% 0;
  box-shadow: inset 0 0 0 1px var(--ink-3), 0 14px 30px -14px var(--shadow);
  animation: pill-drop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes pill-drop { from { opacity: 0; transform: translateY(-18px); } }
.pillnav a {
  position: relative; z-index: 1;
  min-width: 84px; padding: 11px 14px; border-radius: 22px;
  text-align: center; text-decoration: none;
  font: 700 10.5px var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3);
  transition: color 0.3s;
}
.pillnav a.is-lit, .pillnav a:hover { color: var(--on-ink); }
.pillnav a:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
.pillnav__knob {
  position: absolute; z-index: 0; left: 0; top: 3px; bottom: 3px; width: 84px;
  border-radius: 22px; background: var(--ink);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), width 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s;
}
.pillnav:hover .pillnav__knob { background: var(--cyan); }

/* not enough room in the top bar: the pill lives at the bottom of the screen instead */
@media (max-width: 1100px) {
  .pillnav-slot { flex: 0 0 0; height: 0; overflow: visible; }
  .pillnav, .pillnav.is-floating {
    position: fixed; top: auto; bottom: 14px; left: 50%; translate: -50% 0; animation: none;
    box-shadow: inset 0 0 0 1px var(--ink-3), 0 14px 30px -14px var(--shadow);
  }
  .doc { padding-bottom: 96px; }
}
@media (max-width: 520px) {
  .pillnav a { min-width: 0; padding: 11px 12px; font-size: 9.5px; letter-spacing: 0.1em; }
}
/* Netlify adds a "Powered by Netlify" badge in the bottom-right corner (iframe#nl-badge-frame).
   On narrow screens it would sit on top of the pill, so lift the pill above it. */
@media (max-width: 700px) {
  body:has(#nl-badge-frame) .pillnav, body:has(#nl-badge-frame) .pillnav.is-floating { bottom: calc(76px + env(safe-area-inset-bottom, 0px)); }
  body:has(#nl-badge-frame) .doc { padding-bottom: 160px; }
}
@media print { .pillnav { display: none; } }

/* CV download button */
.btn--cv { border-color: var(--amber); color: var(--amber); }
.btn--cv:hover { background: var(--amber); border-color: var(--amber); color: var(--on-ink); }
.btn--primary.btn--cv { background: var(--amber); color: var(--on-ink); }
.btn--primary.btn--cv::after { content: none; }
.btn--primary.btn--cv:hover { background: var(--ink); border-color: var(--ink); }
.monogram--photo { object-fit: cover; padding: 0; }