/* DD-Vault. Ei ulkoisia fontteja, ei JavaScriptiä, ei inline-tyylejä (CSP: style-src 'self'). */
:root {
  color-scheme: light dark;

  --c-bg-light: oklch(98.5% 0.004 240);
  --c-bg-dark: oklch(19% 0.012 250);
  --c-surface-light: #fff;
  --c-surface-dark: oklch(24% 0.014 250);
  --c-text-light: oklch(25% 0.02 250);
  --c-text-dark: oklch(93% 0.008 250);
  --c-muted-light: oklch(45% 0.02 250);
  --c-muted-dark: oklch(75% 0.015 250);
  --c-line-light: oklch(89% 0.008 250);
  --c-line-dark: oklch(36% 0.015 250);
  --c-accent-light: oklch(45% 0.11 235);
  --c-accent-dark: oklch(78% 0.1 230);
  --c-accent-text-light: #fff;
  --c-accent-text-dark: oklch(20% 0.03 250);
  --c-soft-light: oklch(95% 0.025 235);
  --c-soft-dark: oklch(30% 0.04 240);
  --c-ok-light: oklch(42% 0.11 150);
  --c-ok-dark: oklch(80% 0.13 150);
  --c-warn-light: oklch(45% 0.12 70);
  --c-warn-dark: oklch(83% 0.13 80);

  --c-bg: light-dark(var(--c-bg-light), var(--c-bg-dark));
  --c-surface: light-dark(var(--c-surface-light), var(--c-surface-dark));
  --c-text: light-dark(var(--c-text-light), var(--c-text-dark));
  --c-muted: light-dark(var(--c-muted-light), var(--c-muted-dark));
  --c-line: light-dark(var(--c-line-light), var(--c-line-dark));
  --c-accent: light-dark(var(--c-accent-light), var(--c-accent-dark));
  --c-accent-text: light-dark(var(--c-accent-text-light), var(--c-accent-text-dark));
  --c-soft: light-dark(var(--c-soft-light), var(--c-soft-dark));
  --c-ok: light-dark(var(--c-ok-light), var(--c-ok-dark));
  --c-warn: light-dark(var(--c-warn-light), var(--c-warn-dark));

  --radius: 10px;
  --gap: clamp(0.75rem, 2vw, 1.25rem);
  accent-color: var(--c-accent);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font: 1rem/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-block-size: 100dvh;
  display: flex;
  flex-direction: column;
}

a { color: var(--c-accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

:where(a:any-link, button, input, select, textarea, summary):focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}

h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.75rem); margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 0.75rem; }
p { text-wrap: pretty; }

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: -10rem;
  padding: 0.5rem 1rem;
  background: var(--c-accent);
  color: var(--c-accent-text);
  border-radius: var(--radius);
  z-index: 10;
}
.skip-link:focus { inset-block-start: 0.5rem; }

.visually-hidden {
  clip-path: inset(50%);
  block-size: 1px;
  inline-size: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
}

/* Yläpalkki */
.site-header {
  background: var(--c-surface);
  border-block-end: 1px solid var(--c-line);
}
.header-inner {
  max-inline-size: 78rem;
  margin-inline: auto;
  padding: 0.6rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}
.logo {
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.logo svg { inline-size: 1.4rem; block-size: 1.4rem; }
.room-name { color: var(--c-muted); font-size: 0.9rem; }

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-block-size: 2.5rem;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius);
  color: var(--c-text);
  text-decoration: none;
}
.main-nav a:hover { background: var(--c-soft); }
.main-nav a[aria-current="page"] {
  background: var(--c-soft);
  font-weight: 700;
  box-shadow: inset 0 -3px 0 var(--c-accent);
}
.badge {
  display: inline-block;
  min-inline-size: 1.4rem;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--c-accent);
  color: var(--c-accent-text);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.4rem;
}
.user-menu {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.user-menu .who { color: var(--c-muted); }

/* Sisältö */
main {
  flex: 1;
  inline-size: 100%;
  max-inline-size: 78rem;
  margin-inline: auto;
  padding: var(--gap) 1rem 2.5rem;
}
.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 0.75rem;
  margin-block-end: 1rem;
}
.page-head p { margin: 0; color: var(--c-muted); }

.card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: var(--gap);
}

.layout-2 {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}
/* Ruudukon lapset saavat kutistua: muuten leveä asiakirjataulukko venyttää sivun puhelimella. */
.layout-2 > * { min-inline-size: 0; }
@media (min-width: 52rem) {
  .layout-2 { grid-template-columns: 17rem 1fr; }
  .layout-2.wide-aside { grid-template-columns: 1fr 22rem; }
}

/* Murupolku */
.breadcrumb ol {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
}
.breadcrumb li + li::before { content: "›" / ""; color: var(--c-muted); margin-inline-end: 0.35rem; }
.breadcrumb a[aria-current="page"] { font-weight: 700; color: var(--c-text); text-decoration: none; }

/* Kansiopuu */
.tree h2 { margin-block-start: 0; font-size: 1rem; }
.tree ul { list-style: none; margin: 0; padding: 0; }
.tree ul ul { padding-inline-start: 1rem; border-inline-start: 1px solid var(--c-line); margin-inline-start: 0.6rem; }
.tree a {
  display: flex;
  gap: 0.45rem;
  align-items: baseline;
  min-block-size: 2.25rem;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  color: var(--c-text);
  text-decoration: none;
}
.tree a:hover { background: var(--c-soft); }
.tree a[aria-current="page"] { background: var(--c-soft); font-weight: 700; }
.tree .num { color: var(--c-muted); font-variant-numeric: tabular-nums; min-inline-size: 1.8rem; }
.tree .count { margin-inline-start: auto; color: var(--c-muted); font-size: 0.85rem; }

/* Taulukot */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; inline-size: 100%; font-size: 0.95rem; }
caption { text-align: start; font-weight: 700; padding-block-end: 0.6rem; }
th, td { text-align: start; padding: 0.6rem 0.6rem; border-block-end: 1px solid var(--c-line); vertical-align: top; }
thead th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--c-muted); }
tbody tr:hover { background: var(--c-soft); }
td.num, th.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.new-dot::after {
  content: "uusi";
  margin-inline-start: 0.4rem;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--c-soft);
  color: var(--c-accent);
  font-size: 0.72rem;
  font-weight: 700;
  vertical-align: 0.1em;
}

.status { font-weight: 700; font-size: 0.85rem; white-space: nowrap; }
.status.open { color: var(--c-warn); }
.status.done { color: var(--c-ok); }
.status.closed { color: var(--c-muted); }
.status::before { content: "●" / ""; margin-inline-end: 0.3rem; }

/* Lomakkeet ja napit */
form { margin: 0; }
.field { display: grid; gap: 0.3rem; margin-block-end: 1rem; }
label { font-weight: 600; }
.hint { color: var(--c-muted); font-size: 0.875rem; margin: 0; }
input:not([type="checkbox"], [type="radio"]), select, textarea {
  font: inherit;
  font-size: max(1rem, 16px);
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  min-block-size: 2.75rem;
  inline-size: 100%;
}
input:not([type="checkbox"], [type="radio"]):hover, select:hover, textarea:hover { border-color: var(--c-muted); }
textarea { min-block-size: 7rem; resize: vertical; }
input.otp {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 1.35rem;
  letter-spacing: 0.35em;
  max-inline-size: 12rem;
}

.btn, button {
  font: inherit;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-block-size: 2.75rem;
  padding: 0.5rem 1.1rem;
  border-radius: 8px;
  border: 1px solid var(--c-accent);
  background: var(--c-accent);
  color: var(--c-accent-text);
  text-decoration: none;
  cursor: pointer;
}
.btn.secondary, button.secondary { background: transparent; color: var(--c-accent); }
.btn.danger, button.danger { background: transparent; color: var(--c-warn); border-color: var(--c-warn); }
.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }

/* Kirjautuminen */
.auth {
  max-inline-size: 26rem;
  margin: clamp(1.5rem, 8vh, 5rem) auto 2rem;
}
.auth .card { padding: clamp(1.25rem, 4vw, 2rem); }
.trust {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: grid;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--c-muted);
}
.trust li::before { content: "✓" / ""; color: var(--c-ok); font-weight: 700; margin-inline-end: 0.45rem; }

/* Tiedot ja ilmoitukset */
.meta { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.4rem; font-size: 0.9rem; }
.meta strong { display: inline-block; min-inline-size: 6.5rem; color: var(--c-muted); font-weight: 600; }
.notice {
  border-inline-start: 4px solid var(--c-accent);
  background: var(--c-soft);
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

/* Q&A */
.thread { display: grid; gap: 1rem; }
.msg { border: 1px solid var(--c-line); border-radius: var(--radius); padding: 0.9rem 1rem; background: var(--c-surface); }
.msg header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; font-size: 0.875rem; color: var(--c-muted); margin-block-end: 0.4rem; }
.msg header strong { color: var(--c-text); }
.msg.answer { border-inline-start: 4px solid var(--c-ok); }
.msg p { margin: 0.3rem 0; }
/* Viestin rivinvaihdot säilyvät; pitkä osoite ei levennä sivua. */
.msg p.body { white-space: pre-wrap; overflow-wrap: anywhere; }
.card.narrow { max-inline-size: 46rem; }
.notice.error { border-color: var(--c-warn); }
main > .breadcrumb { margin-block-end: 0.75rem; }
a.ask { margin-inline-start: 0.4rem; font-size: 0.875rem; }
.page-head .actions { margin-inline-start: auto; }

.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-block-end: 1rem; }
.filters a {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  text-decoration: none;
  color: var(--c-text);
  min-block-size: 2.25rem;
  display: inline-flex;
  align-items: center;
}
.filters a[aria-current="true"] { background: var(--c-soft); border-color: var(--c-accent); font-weight: 700; }

/* Hallinta */
.matrix select { min-inline-size: 8.5rem; }
.matrix th[scope="row"] { white-space: nowrap; }
.legend { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.875rem; color: var(--c-muted); margin: 0.75rem 0 0; padding: 0; list-style: none; }
.section-nav ul { list-style: none; margin: 0 0 1rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.section-nav a { padding: 0.35rem 0.85rem; border-radius: 999px; border: 1px solid var(--c-line); text-decoration: none; color: var(--c-text); }
.hash { font-family: ui-monospace, Menlo, monospace; font-size: 0.8rem; color: var(--c-muted); }

/* Alapalkki */
.site-footer {
  border-block-start: 1px solid var(--c-line);
  color: var(--c-muted);
  font-size: 0.85rem;
}
.site-footer .inner {
  max-inline-size: 78rem;
  margin-inline: auto;
  padding: 0.9rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

@media (pointer: coarse) {
  .tree a, .main-nav a { min-block-size: 2.75rem; }
}

@media (forced-colors: active) {
  .main-nav a[aria-current="page"], .tree a[aria-current="page"] { outline: 2px solid CanvasText; }
  .badge { border: 1px solid CanvasText; }
}

@media (prefers-reduced-motion: no-preference) {
  .main-nav a, .tree a, .btn, button { transition: background-color 0.15s; }
}

/* Apuluokat (ei inline-tyylejä: CSP default-src 'self') */
.stack + .stack, .layout-2 + .card, .card + .card { margin-block-start: var(--gap); }
.flush { margin-block-start: 0; }
.spaced { margin-block-start: 1rem; }
.mt { margin-block-start: 1rem; }
.invite { display: grid; gap: 0 1rem; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); align-items: end; }
.invite button { margin-block-end: 1rem; }
.matrix th, .matrix td { vertical-align: middle; }
:where(.card, section, .auth .card) > p.hint { margin-block: 0 0.9rem; }

/* V1 */
.tree li.d1 a { padding-inline-start: 1.7rem; }
.tree li.d2 a { padding-inline-start: 2.9rem; }
.tree details { margin-block-start: 0.75rem; border-block-start: 1px solid var(--c-line); padding-block-start: 0.6rem; }
details > summary { cursor: pointer; font-weight: 600; min-block-size: 2.25rem; display: flex; align-items: center; color: var(--c-accent); }
details > summary::before { content: "+" / ""; margin-inline-end: 0.5rem; font-weight: 700; }
details[open] > summary::before { content: "–" / ""; }
details[open] > summary { margin-block-end: 0.6rem; }
.user-menu form { display: inline; }
button.linklike {
  background: none; border: 0; padding: 0; min-block-size: 1.5rem;
  color: var(--c-accent); font-weight: 400; text-decoration: underline; text-underline-offset: 0.18em;
}
button.linklike.danger { color: var(--c-warn); }
.error {
  border-inline-start: 4px solid var(--c-warn);
  background: var(--c-soft);
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  margin: 0 0 1rem;
  font-weight: 600;
}
.notice p { margin: 0; }
.notice input { margin-block-start: 0.5rem; font-family: ui-monospace, Menlo, monospace; font-size: 0.85rem; }
.auth.wide { max-inline-size: 34rem; }
.auth h2 { font-size: 1.05rem; margin-block-start: 1.25rem; }
.auth h3 { font-size: 0.95rem; margin-block: 1.1rem 0.3rem; }
.secret code { display: inline-block; font-size: 1.05rem; padding: 0.4rem 0.6rem; user-select: all; }
.qr { display: block; background: #fff; padding: 0.5rem; border-radius: 8px; max-inline-size: 100%; block-size: auto; image-rendering: pixelated; }
code { font-family: ui-monospace, Menlo, monospace; font-size: 0.95em; background: var(--c-soft); padding: 0.1rem 0.35rem; border-radius: 4px; overflow-wrap: anywhere; }
h3 { font-size: 1rem; margin: 1.5rem 0 0.6rem; }
input[type="file"] { padding: 0.4rem; }
@media (max-width: 51.99rem) {
  .layout-2 > .tree { order: 2; } /* puhelimessa asiakirjat ensin, kansiopuu niiden alla */
}
.hash { white-space: nowrap; }
/* Kohteen vähimmäiskoko 24 px (WCAG 2.5.8), reilummin kosketusnäytöllä */
.user-menu a, .actions a:not(.btn), button.linklike, td > a, .breadcrumb a { display: inline-flex; align-items: center; min-block-size: 1.75rem; }
@media (pointer: coarse) {
  .user-menu a, .actions a:not(.btn), button.linklike, td > a { min-block-size: 2.5rem; }
}

/* Lukittu viittaus uuden kysymyksen lomakkeessa. */
.field .label { font-weight: 600; display: block; }
.ref-locked { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: baseline; background: var(--c-soft); border-radius: 8px; padding: 0.6rem 0.75rem; margin: 0.3rem 0 0; }

/* Vesileimattu esikatselu. */
.pager { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; margin-block: 0.75rem; }
.pager .off { opacity: 0.45; }
.page-img { margin: 0; }
.page-img img { display: block; max-inline-size: 100%; block-size: auto; border: 1px solid var(--c-line); background: #fff; }