/* ==========================================================================
   Rok Črešnik — portfolio & CV
   Design tokens, layout and components. No build step, no framework.
   ========================================================================== */

/* --- Tokens: light (default) ---------------------------------------------- */
:root {
  --ink:            #14120e;
  --ink-strong:     #000000;
  --muted:          #5f5a50;
  --faint:          #8d867a;
  --bg:             #faf8f4;
  --bg-raised:      #ffffff;
  --bg-sunken:      #f2efe8;
  --line:           #e2ddd2;
  --line-strong:    #cec7b8;
  --accent:         #a8442a;
  --accent-soft:    #f3e3dd;
  --accent-ink:     #8c3722;

  --font-display: "Instrument Serif", "Iowan Old Style", "Palatino Linotype",
                  Palatino, Georgia, serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
                  Roboto, Helvetica, Arial, sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
                  "Liberation Mono", monospace;

  --measure: 68ch;
  --page: 1120px;
  --radius: 4px;

  color-scheme: light;
}

/* --- Tokens: dark --------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink:          #ece7dd;
    --ink-strong:   #ffffff;
    --muted:        #a49d90;
    --faint:        #7d766a;
    --bg:           #12110f;
    --bg-raised:    #1a1916;
    --bg-sunken:    #0d0c0b;
    --line:         #2b2924;
    --line-strong:  #3d3a33;
    --accent:       #e08a6c;
    --accent-soft:  #2a1f1a;
    --accent-ink:   #f0a888;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --ink:          #ece7dd;
  --ink-strong:   #ffffff;
  --muted:        #a49d90;
  --faint:        #7d766a;
  --bg:           #12110f;
  --bg-raised:    #1a1916;
  --bg-sunken:    #0d0c0b;
  --line:         #2b2924;
  --line-strong:  #3d3a33;
  --accent:       #e08a6c;
  --accent-soft:  #2a1f1a;
  --accent-ink:   #f0a888;
  color-scheme: dark;
}

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.62;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

h1, h2, h3, h4 { margin: 0; font-weight: 400; line-height: 1.12; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; }

a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Layout --------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section + .section { border-top: 1px solid var(--line); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .75rem 1.5rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faint);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: -.01em;
}

.section-note {
  margin: 0;
  max-width: 46ch;
  font-size: .92rem;
  color: var(--muted);
  margin-left: auto;
}

.lede { max-width: var(--measure); }

/* --- Skip link ------------------------------------------------------------ */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: .6rem 1rem;
  z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

/* --- Header --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 3.75rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.28rem;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.brand .brand-role {
  display: none;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-left: .75rem;
}
@media (min-width: 900px) { .brand .brand-role { display: inline; } }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 2vw, 1.6rem);
}

.site-nav a {
  font-size: .86rem;
  color: var(--muted);
  padding-block: .35rem;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }

.nav-hide-sm { display: none; }
@media (min-width: 660px) { .nav-hide-sm { display: inline; } }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--accent); }
.theme-toggle svg { width: 15px; height: 15px; }
/* The button shows the theme it switches *to*: a moon while light, a sun while dark. */
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
.theme-toggle[data-resolved="dark"] .icon-sun { display: block; }
.theme-toggle[data-resolved="dark"] .icon-moon { display: none; }

/* --- Hero ----------------------------------------------------------------- */
.hero { padding-block: clamp(3.5rem, 10vw, 7rem) clamp(3rem, 6vw, 4.5rem); }

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.6rem;
}
.hero-status .dot {
  width: .45rem; height: .45rem;
  border-radius: 50%;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  letter-spacing: -.02em;
  max-width: 19ch;
  margin-bottom: 1.5rem;
}
.hero h1 em { font-style: italic; color: var(--accent); }

.hero-lede {
  max-width: 60ch;
  font-size: clamp(1.02rem, 1.4vw, 1.16rem);
  color: var(--muted);
}
.hero-lede strong { color: var(--ink); font-weight: 500; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .62rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: .88rem;
  color: var(--ink);
  background: transparent;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { border-color: var(--accent); color: var(--accent-ink); }
.btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn svg { width: 14px; height: 14px; }

/* --- Facts band ----------------------------------------------------------- */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.fact {
  background: var(--bg);
  padding: 1.6rem clamp(1.25rem, 5vw, 3rem);
}
.fact-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  line-height: 1;
  letter-spacing: -.01em;
  margin-bottom: .5rem;
}
.fact-label {
  font-size: .82rem;
  color: var(--muted);
  display: block;
}

/* --- Work list ------------------------------------------------------------ */
.work-list { list-style: none; }

.work-item { border-top: 1px solid var(--line); }
.work-item:last-child { border-bottom: 1px solid var(--line); }

.work-link {
  display: grid;
  grid-template-columns: 1fr;
  gap: .5rem 2rem;
  padding: clamp(1.5rem, 3vw, 2.1rem) 0;
  transition: background .2s ease, padding-inline .2s ease;
}
@media (min-width: 800px) {
  .work-link { grid-template-columns: minmax(0, 7.5rem) minmax(0, 1fr) minmax(0, 22rem) auto; align-items: start; }
  .work-link:hover { background: var(--bg-sunken); padding-inline: 1.25rem; }
}

.work-period {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--faint);
  padding-top: .35rem;
  white-space: nowrap;
}

.work-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  letter-spacing: -.01em;
}
.work-role {
  display: block;
  font-family: var(--font-body);
  font-size: .82rem;
  color: var(--accent-ink);
  margin-top: .3rem;
}

.work-desc {
  margin: 0;
  font-size: .93rem;
  color: var(--muted);
}

.work-arrow {
  align-self: center;
  color: var(--faint);
  transition: transform .2s ease, color .2s ease;
  display: none;
}
@media (min-width: 800px) { .work-arrow { display: block; } }
.work-link:hover .work-arrow { transform: translateX(4px); color: var(--accent); }
.work-arrow svg { width: 18px; height: 18px; display: block; }

/* --- Tags ----------------------------------------------------------------- */
.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .85rem;
}
.tags li {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: .18rem .6rem;
  white-space: nowrap;
}

/* --- Card grid (other work) ----------------------------------------------- */
.card-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15.5rem), 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.card {
  background: var(--bg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -.01em;
}
.card .card-meta {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--faint);
  text-transform: uppercase;
}
.card p { margin: .3rem 0 0; font-size: .88rem; color: var(--muted); }
.card a.card-out {
  margin-top: auto;
  padding-top: .9rem;
  font-size: .8rem;
  color: var(--accent-ink);
  border-bottom: 0;
}
.card a.card-out:hover { text-decoration: underline; }

/* --- Timeline ------------------------------------------------------------- */
.timeline { list-style: none; }

.tl-era { border-top: 1px solid var(--line); padding-block: clamp(1.75rem, 3vw, 2.5rem); }
.tl-era:last-child { border-bottom: 1px solid var(--line); }

.tl-grid { display: grid; gap: 1rem 2.5rem; }
@media (min-width: 800px) { .tl-grid { grid-template-columns: 13rem minmax(0, 1fr); } }

.tl-years {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--accent-ink);
}
.tl-era-title {
  display: block;
  font-family: var(--font-body);
  font-size: .82rem;
  color: var(--faint);
  margin-top: .35rem;
  max-width: 12rem;
}

.tl-roles { list-style: none; display: grid; gap: 1.35rem; }
.tl-role h3 {
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -.005em;
}
.tl-role .tl-role-meta {
  display: block;
  font-size: .82rem;
  color: var(--accent-ink);
  margin-top: .15rem;
}
.tl-role p { margin: .45rem 0 0; font-size: .92rem; color: var(--muted); max-width: 62ch; }

.note {
  margin-top: 2rem;
  padding: 1.1rem 1.3rem;
  background: var(--bg-sunken);
  border-left: 2px solid var(--line-strong);
  font-size: .88rem;
  color: var(--muted);
  max-width: 70ch;
}
.note p:last-child { margin-bottom: 0; }

/* --- Two column prose ----------------------------------------------------- */
.cols { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 900px) { .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.stack-group { margin-bottom: 1.75rem; }
.stack-group h3 {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: .6rem;
}
.stack-group p { margin: 0; font-size: .95rem; }

.bullets { list-style: none; display: grid; gap: .55rem; }
.bullets li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .95rem;
  color: var(--muted);
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .35rem;
  height: 1px;
  background: var(--accent);
}
.bullets li strong { color: var(--ink); font-weight: 500; }

/* --- Contact -------------------------------------------------------------- */
.contact-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
@media (min-width: 860px) { .contact-grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); } }

.contact-h {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: -.02em;
  margin-bottom: 1rem;
  max-width: 16ch;
}

.contact-list { list-style: none; display: grid; gap: 1rem; }
.contact-list dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
}
.contact-list dd { margin: .2rem 0 0; }
.contact-list a { border-bottom: 1px solid var(--line-strong); }
.contact-list a:hover { border-bottom-color: var(--accent); color: var(--accent-ink); }

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.25rem;
  font-size: .82rem;
  color: var(--faint);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: center; }
.site-footer .foot-links { margin-left: auto; display: flex; gap: 1.25rem; }
.site-footer a:hover { color: var(--ink); }

/* ==========================================================================
   Case-study pages
   ========================================================================== */
.case { padding-block: clamp(2.5rem, 6vw, 4.5rem) 0; }

.back {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 2.5rem;
}
.back:hover { color: var(--accent-ink); }
.back svg { width: 13px; height: 13px; }

.case-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  letter-spacing: -.02em;
  max-width: 16ch;
  margin-bottom: 1.25rem;
}

.case-lede {
  max-width: 62ch;
  font-size: clamp(1.02rem, 1.4vw, 1.14rem);
  color: var(--muted);
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1.5rem 2rem;
  margin-top: 2.75rem;
  padding-block: 1.75rem;
  border-block: 1px solid var(--line);
}
.case-meta dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: .35rem;
}
.case-meta dd { margin: 0; font-size: .93rem; }

.case-body { padding-block: clamp(3rem, 6vw, 4.5rem); }
.case-body > .wrap { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 940px) {
  .case-body > .wrap { grid-template-columns: minmax(0, 1fr) minmax(0, 19rem); align-items: start; }
}

.prose { max-width: var(--measure); }
.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -.01em;
  margin-top: 2.75rem;
  margin-bottom: .9rem;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-top: 1.75rem;
  margin-bottom: .5rem;
}
.prose p { color: var(--muted); }
.prose p strong, .prose li strong { color: var(--ink); font-weight: 500; }
.prose .bullets { margin-top: .5rem; }

.aside { display: grid; gap: 2rem; position: sticky; top: 5.5rem; }
@media (max-width: 939px) { .aside { position: static; } }

.aside-block h2 {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: .85rem;
}

.results { list-style: none; display: grid; gap: 1.1rem; }
.results .r-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.85rem;
  line-height: 1;
  letter-spacing: -.01em;
}
.results .r-label { display: block; font-size: .84rem; color: var(--muted); margin-top: .3rem; }

.links { list-style: none; display: grid; gap: .55rem; }
.links a {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  font-size: .88rem;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}
.links a:hover { color: var(--accent-ink); border-bottom-color: var(--accent); }
.links a::after { content: "↗"; font-size: .75em; color: var(--faint); }

.case-next { border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.case-next .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: baseline; }
.case-next .next-label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
}
.case-next .next-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  letter-spacing: -.01em;
}
.case-next a:hover .next-title { color: var(--accent-ink); }

/* --- Print ---------------------------------------------------------------- */
@media print {
  .site-header, .theme-toggle, .hero-actions, .site-footer, .case-next, .back { display: none !important; }
  body { background: #fff; color: #000; font-size: 10.5pt; }
  .section { padding-block: 1.25rem; border-top: 1px solid #ccc; }
  a { text-decoration: none; color: #000; }
  .work-item, .card-grid, .tl-era { break-inside: avoid; }
}