/* =====================================================================
   Design tokens. To match your portfolio exactly, change the colours and
   fonts in this block; everything else follows.
   ===================================================================== */
:root {
  --paper: #F6F6F3;
  --surface: #FFFFFF;
  --ink: #15171C;
  --muted: #565B66;
  --line: #D9D9D3;
  --field-border: #8B8F98;
  --accent: #1D3FB8;
  --danger: #A31D1D;
  --ok: #1E6B3A;
  --focus: #1D3FB8;

  --font-sans: 'Archivo', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;

  --max: 1120px;
  --gutter: clamp(1rem, 4vw, 2rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
body.no-scroll { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { color: var(--ink); }
h1, h2, h3 { margin: 0; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }

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

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--ink); color: #fff; padding: 0.6rem 1rem; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* ---------- Header / footer ---------- */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.wordmark { font-weight: 800; font-size: 1.125rem; letter-spacing: 0.02em; color: var(--ink); text-decoration: none; }
.nav-list { list-style: none; display: flex; gap: clamp(1rem, 3vw, 2rem); }
.nav-list a, .footer-links a {
  color: var(--ink); text-decoration: none; font-weight: 700; font-size: 0.8125rem;
  letter-spacing: 0.08em; text-transform: uppercase; padding-block: 0.5rem; display: inline-block;
}
.nav-list a:hover, .footer-links a:hover { color: var(--accent); text-decoration: underline; }

.site-footer { border-top: 1px solid var(--line); margin-top: clamp(3rem, 8vw, 6rem); padding-block: 2rem 2.5rem; }
.footer-inner { display: grid; gap: 0.75rem; }
.footer-name { font-weight: 800; margin: 0; letter-spacing: 0.02em; }
.footer-close { color: var(--muted); margin: 0; max-width: 46ch; }
.footer-links { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
@media (min-width: 720px) {
  .footer-inner { grid-template-columns: 1fr auto; align-items: end; }
  .footer-links { grid-column: 2; grid-row: 1 / span 2; justify-self: end; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 44px; padding: 0.65rem 1.25rem; border: 1.5px solid var(--ink); border-radius: 2px;
  background: var(--ink); color: #fff; cursor: pointer; text-decoration: none;
  font: 700 0.8125rem/1.2 var(--font-sans); letter-spacing: 0.08em; text-transform: uppercase;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-secondary { background: transparent; color: var(--ink); }
.btn-secondary:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-quiet { background: transparent; border-color: transparent; color: var(--muted); }
.btn-quiet:hover { background: transparent; border-color: transparent; color: var(--ink); text-decoration: underline; }
.btn-small { min-height: 40px; padding: 0.4rem 0.85rem; font-size: 0.75rem; }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:disabled:hover { background: var(--ink); border-color: var(--ink); }
.btn-secondary:disabled:hover { background: transparent; color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 11vw, 7.5rem) clamp(2.5rem, 7vw, 5rem); }
.hero h1 {
  font-weight: 800; text-transform: uppercase; letter-spacing: -0.02em; line-height: 0.98;
  font-size: clamp(2.5rem, 9.5vw, 5.75rem); max-width: 13ch; text-wrap: balance;
}
.hero h1 em { font-family: var(--font-serif); font-style: italic; font-weight: 400; text-transform: none; letter-spacing: -0.01em; color: var(--accent); }
.hero-intro { max-width: 58ch; font-size: clamp(1.0625rem, 2.4vw, 1.25rem); color: var(--muted); margin: 1.75rem 0 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ---------- Library ---------- */
.library { padding-block: clamp(2rem, 6vw, 4rem) 0; scroll-margin-top: 1rem; }
.section-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 800; text-transform: uppercase;
  letter-spacing: -0.01em; line-height: 1.05; margin-bottom: 1.5rem;
  padding-top: 1.25rem; border-top: 2px solid var(--ink);
}
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.chip {
  min-height: 40px; padding: 0.4rem 1rem; border: 1px solid var(--field-border); border-radius: 999px;
  background: transparent; color: var(--ink); font: 500 0.9375rem/1 var(--font-sans); cursor: pointer;
}
.chip:hover { border-color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }

.grid { list-style: none; display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.card { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); transition: border-color 0.15s; }
.card:hover { border-color: var(--ink); }
.card:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.card-media { aspect-ratio: 4 / 3; background: #E6E6E1; overflow: hidden; border-bottom: 1px solid var(--line); }
.card-media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.card-media-fallback {
  display: flex; align-items: center; justify-content: center; height: 100%; padding: 1rem;
  text-align: center; color: var(--muted); font-weight: 700;
}
.card-body { display: flex; flex-direction: column; flex: 1; padding: 1.1rem 1.1rem 1.25rem; }
.card-cat { color: var(--accent); font-weight: 700; font-size: 0.875rem; margin: 0 0 0.35rem; }
.card-title { font-size: 1.3125rem; line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.4rem; }
.card-period { color: var(--muted); font-size: 0.875rem; margin: 0 0 0.6rem; }
.card-desc {
  color: #30343C; margin: 0 0 0.9rem;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.card-results { list-style: none; margin: 0 0 1rem; padding: 0 0 0 0.75rem; border-left: 3px solid var(--accent); font-size: 0.9375rem; }
.card-results li + li { margin-top: 0.25rem; }
.card-link {
  margin-top: auto; align-self: flex-start; color: var(--ink); font-weight: 700; font-size: 0.8125rem;
  letter-spacing: 0.08em; text-transform: uppercase; text-decoration: underline; text-underline-offset: 0.3em;
}
.card-link::after { content: ""; position: absolute; inset: 0; }
.card-link:focus-visible { outline: none; }

.state { padding: 2.5rem 1rem; border: 1px dashed var(--field-border); text-align: center; color: var(--muted); background: transparent; }
.state p:last-child { margin-bottom: 0; }
.state-error { color: var(--danger); border-color: var(--danger); }
.state-error a { color: var(--danger); }

/* ---------- Case study view ---------- */
.case-wrap { padding-block: 1.5rem 0; }
.link-back {
  background: none; border: 0; padding: 0.5rem 0; margin-bottom: 1rem; color: var(--accent); cursor: pointer;
  font: 700 0.8125rem/1 var(--font-sans); letter-spacing: 0.08em; text-transform: uppercase; min-height: 44px;
}
.link-back:hover { color: var(--ink); text-decoration: underline; }
.case-title {
  font-size: clamp(1.75rem, 5.5vw, 3.25rem); font-weight: 800; text-transform: uppercase;
  letter-spacing: -0.02em; line-height: 1.02; max-width: 22ch; text-wrap: balance;
}
.case-title:focus { outline: none; }
.case-meta { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 1rem 0 0; color: var(--muted); }
.case-cat { color: var(--accent); font-weight: 700; }
.case-desc { max-width: 64ch; font-size: 1.125rem; margin: 1rem 0 0; }
.results { margin-top: 1.25rem; max-width: 64ch; }
.results-title { font-size: 0.9375rem; font-weight: 700; margin-bottom: 0.4rem; }
.results ul { list-style: none; padding-left: 0.85rem; border-left: 3px solid var(--accent); }
.results li + li { margin-top: 0.3rem; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.tag { border: 1px solid var(--line); background: var(--surface); padding: 0.15rem 0.6rem; font-size: 0.8125rem; border-radius: 999px; }
.case-links { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 1rem 0 0; font-size: 0.9375rem; }

.pdf-host { margin-top: 1.5rem; border: 1px solid var(--line); background: #E4E4DF; }
.pdf-toolbar {
  position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem;
  padding: 0.5rem; background: var(--surface); border-bottom: 1px solid var(--line);
}
.pdf-zoom-label { min-width: 3.25rem; text-align: center; font-variant-numeric: tabular-nums; font-weight: 500; }
.pdf-page-label { margin-left: auto; color: var(--muted); font-size: 0.9375rem; }
.pdf-scroller { height: 80vh; height: min(80dvh, 1100px); overflow: auto; -webkit-overflow-scrolling: touch; }
.pdf-status { margin: 0; padding: 3rem 1rem; text-align: center; color: var(--muted); }
.pdf-pages { width: max-content; min-width: 100%; padding: 12px; }
.pdf-page { margin: 0 auto 12px; background: #fff; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2); }
.pdf-page canvas { display: block; }
.pdf-host > .state { margin: 1rem; background: var(--surface); }

/* ---------- Admin ---------- */
.admin-shell { padding-block: 2rem 0; }
.admin-who { display: flex; align-items: center; gap: 0.75rem; min-width: 0; }
.who { color: var(--muted); font-size: 0.875rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 34vw; }
.admin-title { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 800; text-transform: uppercase; letter-spacing: -0.01em; line-height: 1.05; }
.panel { background: var(--surface); border: 1px solid var(--line); padding: clamp(1rem, 4vw, 2rem); }
.panel .admin-title { margin-bottom: 1.25rem; }
.narrow { max-width: 460px; margin-inline: auto; }
.hint { color: var(--muted); margin: 0.75rem 0 1.5rem; }
.list-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }

.field { margin-bottom: 1.25rem; }
.field label, .upload-box label { display: block; font-weight: 700; margin-bottom: 0.35rem; }
.req { font-weight: 400; color: var(--muted); font-size: 0.875rem; }
.field input[type="text"], .field input[type="email"], .field input[type="password"], .field input[type="url"], .field textarea {
  width: 100%; min-height: 44px; padding: 0.6rem 0.75rem; border: 1px solid var(--field-border);
  border-radius: 2px; background: #fff; color: var(--ink); font: inherit;
}
.field textarea { resize: vertical; }
.field input[type="file"] { width: 100%; padding: 0.5rem 0; font: inherit; }
.field-hint { color: var(--muted); font-size: 0.875rem; margin: 0.35rem 0 0; }
.check { display: flex !important; align-items: center; gap: 0.5rem; font-weight: 400 !important; margin-top: 0.5rem; }
.check input { width: 1.125rem; height: 1.125rem; }
.row { display: grid; gap: 0 1.25rem; }
@media (min-width: 680px) { .row { grid-template-columns: 1fr 1fr; } }

.form-error { color: var(--danger); border: 1px solid var(--danger); background: #FBEFEF; padding: 0.75rem 1rem; margin-bottom: 1.25rem; }
.form-error ul { margin: 0.25rem 0 0; padding-left: 1.25rem; }
.form-error-title { font-weight: 700; margin: 0; }
#login-error { margin-bottom: 1rem; }
.form-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.upload-box { margin: 1rem 0; padding: 1rem; border: 1px solid var(--line); background: var(--paper); }
.upload-box progress { width: 100%; height: 12px; accent-color: var(--accent); }

.items { list-style: none; display: grid; gap: 0.75rem; }
.item { display: grid; grid-template-columns: 72px 1fr; gap: 0.5rem 1rem; align-items: start; padding: 0.9rem; background: var(--surface); border: 1px solid var(--line); }
.item-thumb { width: 72px; height: 96px; object-fit: cover; object-position: top; background: #E6E6E1; border: 1px solid var(--line); }
.item-main { min-width: 0; }
.item-title { font-size: 1.125rem; font-weight: 700; line-height: 1.25; overflow-wrap: anywhere; }
.item-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0.75rem; margin: 0.4rem 0 0; color: var(--muted); font-size: 0.9375rem; }
.item-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 0.5rem; }
@media (min-width: 900px) {
  .item { grid-template-columns: 72px 1fr auto; align-items: center; }
  .item-actions { grid-column: auto; justify-content: flex-end; max-width: 420px; }
}
.badge { font-weight: 700; font-size: 0.8125rem; padding: 0.1rem 0.55rem; border-radius: 999px; border: 1px solid; }
.badge-live { color: var(--ok); border-color: var(--ok); }
.badge-draft { color: var(--muted); border-color: var(--field-border); }

.overlay { position: fixed; inset: 0; z-index: 50; overflow: auto; background: var(--paper); }
.preview-bar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.6rem var(--gutter); background: var(--accent); color: #fff;
}
.preview-bar p { margin: 0; font-weight: 500; }
.preview-bar .btn { background: #fff; color: var(--ink); border-color: #fff; }
.overlay .case-wrap { padding-bottom: 3rem; }
.overlay .pdf-toolbar { top: 0; }

.toasts { position: fixed; left: 50%; bottom: 1rem; transform: translateX(-50%); z-index: 100; width: min(92vw, 520px); display: grid; gap: 0.5rem; pointer-events: none; }
.toast { pointer-events: auto; display: flex; justify-content: space-between; align-items: flex-start; gap: 0.75rem; padding: 0.8rem 1rem; background: var(--ink); color: #fff; border-left: 6px solid var(--ok); }
.toast-error { background: #fff; color: var(--danger); border: 1px solid var(--danger); border-left-width: 6px; }
.toast-x { background: none; border: 0; font-size: 1.5rem; line-height: 1; cursor: pointer; color: inherit; min-width: 32px; min-height: 32px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}