/* Research Tracker — calm, dense, instrument-like. */

:root {
  --bg:        #f6f6f3;
  --surface:   #ffffff;
  --ink:       #1b1e21;
  --ink-soft:  #3f464d;
  --muted:     #6a7078;
  --line:      #e2e2db;
  --line-firm: #cfcfc6;
  --accent:    #264c52;
  --accent-ink:#1a373b;
  --accent-bg: #e8eff0;
  --danger:    #9d2f28;
  --danger-bg: #f8eae8;
  --ok:        #2f6b4f;

  --radius: 8px;
  --pad: 1rem;
  --shadow: 0 1px 2px rgba(20, 24, 28, .05);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

/* `hidden` must win over any display rule below — several components set
   display:flex/grid, which would otherwise override the UA hidden style. */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; }

button, input, select, textarea { font: inherit; color: inherit; }

.icon { width: 1.05em; height: 1.05em; flex: none; vertical-align: -0.14em; }

/* ── Focus ──────────────────────────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
:focus:not(:focus-visible) { outline: none; }

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

/* ── Buttons ────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45em;
  padding: .55rem .9rem;
  border: 1px solid var(--line-firm);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-size: .95rem; font-weight: 500;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover { background: #f0f0ec; }
.btn:active { background: #e8e8e2; }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); }
.btn-primary:active { background: var(--accent-ink); }
.btn-primary:disabled { opacity: .55; cursor: default; }

.btn-quiet { background: transparent; }
.btn-quiet:hover { background: #ececE6; }

.btn-danger { color: var(--danger); border-color: #e0c6c2; background: transparent; }
.btn-danger:hover { background: var(--danger-bg); }

.btn-sm { padding: .38rem .65rem; font-size: .875rem; }
.btn-block { width: 100%; }
.btn-icon { padding: .4rem; }

/* ── Fields ─────────────────────────────────────────────────────────────── */

.field { display: flex; flex-direction: column; gap: .3rem; min-width: 0; }

.field-label {
  font-size: .78rem; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; color: var(--muted);
}

.field input, .field select, .field textarea {
  width: 100%;
  padding: .55rem .65rem;
  border: 1px solid var(--line-firm);
  border-radius: var(--radius);
  background: var(--surface);
  min-height: 2.6rem;
}
.field textarea { min-height: 5rem; resize: vertical; line-height: 1.5; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: #b6b6ab; }

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 4.5 6 8l3.5-3.5' fill='none' stroke='%236a7078' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .6rem center;
  background-size: 12px;
  padding-right: 2rem;
}

.hint { margin: 0 0 .6rem; color: var(--muted); font-size: .875rem; }

/* ── Sign-in ────────────────────────────────────────────────────────────── */

.auth { min-height: 100dvh; display: grid; place-items: center; padding: 1.25rem; }

.auth-card {
  width: 100%; max-width: 26rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 1.75rem 1.5rem;
}
.auth-title { font-size: 1.4rem; }
.auth-sub { margin: .5rem 0 1.4rem; color: var(--muted); font-size: .95rem; }
.auth-form { display: flex; flex-direction: column; gap: .9rem; }
.auth-note { margin: 0; font-size: .9rem; color: var(--ink-soft); }
.auth-msg { margin: 1rem 0 0; font-size: .9rem; min-height: 1.2em; color: var(--muted); }
.auth-msg-error { color: var(--danger); }
.auth-msg-ok { color: var(--ok); }

/* ── Top bar ────────────────────────────────────────────────────────────── */

.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top);
}

.topbar-inner {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  max-width: 62rem; margin: 0 auto; padding: .7rem 1rem .55rem;
}

.brand { display: flex; align-items: center; gap: .55rem; min-width: 0; color: var(--accent); }
.brand-mark { width: 1.5rem; height: 1.5rem; flex: none; }
.brand-name {
  font-weight: 600; color: var(--ink); font-size: 1rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.topbar-right { display: flex; align-items: center; gap: .6rem; }

.sync { font-size: .8rem; color: var(--muted); white-space: nowrap; }
.sync-saving  { color: var(--muted); }
.sync-saved   { color: var(--ok); }
.sync-offline { color: var(--danger); font-weight: 500; }

.tabs {
  display: flex; gap: .15rem;
  max-width: 62rem; margin: 0 auto; padding: 0 .6rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .55rem .7rem;
  border: none; border-bottom: 2px solid transparent;
  background: none; cursor: pointer;
  color: var(--muted); font-size: .92rem; font-weight: 500;
  white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-count {
  display: inline-grid; place-items: center;
  min-width: 1.35em; height: 1.35em; padding: 0 .3em;
  border-radius: 999px;
  background: var(--danger); color: #fff;
  font-size: .72rem; font-weight: 600;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */

.main { max-width: 62rem; margin: 0 auto; padding: 1.25rem 1rem 2rem; }

.footer {
  max-width: 62rem; margin: 0 auto;
  padding: 1rem 1rem calc(2rem + env(safe-area-inset-bottom));
  display: flex; flex-wrap: wrap; align-items: center; gap: .6rem;
  border-top: 1px solid var(--line);
}
.footer-who { color: var(--muted); font-size: .82rem; margin-left: auto; }

.boot { min-height: 60dvh; display: grid; place-items: center; color: var(--muted); padding: 2rem; text-align: center; }
.boot code { font-family: var(--mono); font-size: .9em; background: #ececE6; padding: .1em .35em; border-radius: 4px; }

/* ── Toolbar / filters ──────────────────────────────────────────────────── */

.toolbar { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1rem; }

.search { position: relative; display: flex; align-items: center; }
.search .icon {
  position: absolute; left: .7rem; width: 1.1rem; height: 1.1rem;
  color: var(--muted); pointer-events: none;
}
.search input {
  width: 100%; padding: .6rem .7rem .6rem 2.3rem;
  border: 1px solid var(--line-firm); border-radius: var(--radius);
  background: var(--surface); min-height: 2.7rem;
}

.filters { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.field-inline { gap: .25rem; }

.result-count { margin: 0 0 .75rem; color: var(--muted); font-size: .85rem; }

/* ── Cards ──────────────────────────────────────────────────────────────── */

.cards { display: grid; gap: .75rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: .85rem .95rem;
  display: flex; flex-direction: column; gap: .55rem;
}

.card-badges { display: flex; flex-wrap: wrap; gap: .35rem; }
.card-title { font-size: 1rem; line-height: 1.35; }

.card-meta { margin: 0; display: flex; flex-direction: column; gap: .3rem; font-size: .88rem; }
.card-meta > div { display: flex; gap: .5rem; }
.card-meta dt {
  flex: none; width: 6.2rem; color: var(--muted);
  font-size: .78rem; text-transform: uppercase; letter-spacing: .04em;
  padding-top: .12em; font-weight: 600;
}
.card-meta dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.card-meta dd.empty { color: var(--muted); font-style: italic; }

.card-open { align-self: flex-start; }

.empty-state {
  margin: 0; padding: 1.1rem; text-align: center;
  color: var(--muted); font-size: .92rem;
  border: 1px dashed var(--line-firm); border-radius: var(--radius);
}
.empty-state.ok { color: var(--ok); border-style: solid; border-color: var(--line); }

.seed-prompt { display: flex; flex-direction: column; align-items: center; gap: .75rem; padding: 1.75rem 1.1rem; }
.seed-prompt .seed-lead { margin: 0; font-size: 1rem; color: var(--ink); }
.seed-prompt .hint { margin: 0; }
.empty-state.ok .icon { margin-right: .35em; }

/* ── Badges ─────────────────────────────────────────────────────────────── */

.badge {
  display: inline-block; padding: .16rem .45rem;
  border-radius: 4px; border: 1px solid transparent;
  font-size: .74rem; font-weight: 600; letter-spacing: .02em;
  white-space: nowrap;
}

.badge-stage { background: #f0f0ea; color: var(--ink-soft); border-color: var(--line-firm); }
.stage-submitted, .stage-published { background: var(--accent-bg); color: var(--accent-ink); border-color: #c3d6d8; }

.badge-pri { border-color: transparent; }
.pri-low    { background: #eef0ee; color: #5c6560; }
.pri-medium { background: #eceff2; color: #46505a; }
.pri-high   { background: var(--danger-bg); color: var(--danger); }

.cat-autoimmune   { background: #f2e9f5; color: #5c3269; }
.cat-surgery      { background: #e6f0ea; color: #24543e; }
.cat-icu-eeg      { background: #f7ece0; color: #7c4415; }
.cat-invasive-eeg { background: #e5edf5; color: #1f4569; }
.cat-genetics     { background: #e2efef; color: #1c5a5a; }
.cat-epidemiology { background: #eeeee0; color: #5c5c26; }

/* ── Edit form ──────────────────────────────────────────────────────────── */

.picker-field { margin-bottom: 1.25rem; }

.form-grid { display: grid; grid-template-columns: 1fr; gap: .9rem; }
.field-wide { grid-column: 1 / -1; }

.subsection { margin-top: 1.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.subsection-title { font-size: 1rem; margin-bottom: .5rem; }
.subsection.danger { border-top-color: #e8d6d3; }

.deadlines { display: flex; flex-direction: column; gap: .7rem; margin-bottom: .7rem; }

.deadline-row {
  display: grid; grid-template-columns: 1fr auto; gap: .55rem; align-items: end;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .65rem;
}
.deadline-row .dl-remove { color: var(--danger); align-self: end; margin-bottom: .1rem; }

.summary {
  width: 100%; padding: .75rem;
  border: 1px solid var(--line-firm); border-radius: var(--radius);
  background: var(--surface);
  font-family: var(--mono); font-size: .82rem; line-height: 1.55;
  resize: vertical; white-space: pre;
  margin-bottom: .6rem;
}

/* ── Panels (pipeline, attention) ───────────────────────────────────────── */

.panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 1rem; margin-bottom: 1rem;
}
.panel-title { font-size: 1rem; margin-bottom: .6rem; display: flex; align-items: center; gap: .5rem; }
.panel-count {
  display: inline-grid; place-items: center; min-width: 1.5em; height: 1.5em; padding: 0 .35em;
  background: #f0f0ea; border: 1px solid var(--line-firm); border-radius: 999px;
  font-size: .78rem; color: var(--ink-soft);
}

.pipeline-chart { display: block; width: 100%; max-width: 34rem; height: auto; margin: 0 auto; }
.pl-label { font-size: 13px; fill: var(--ink-soft); font-family: var(--font); }
.pl-value { font-size: 12px; fill: var(--muted); font-family: var(--font); font-weight: 600; }
.pl-track { fill: #f0f0ea; }
.pl-bar   { fill: var(--accent); }

.deadline-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.deadline-item {
  display: grid; gap: .15rem;
  padding: .6rem 0; border-top: 1px solid var(--line);
}
.deadline-item:first-child { border-top: none; padding-top: 0; }

.dl-when {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .85rem; font-weight: 600; color: var(--ink-soft);
}
.dl-what { font-size: .92rem; }
.deadline-item.is-overdue .dl-when { color: var(--danger); }
.dl-tag {
  background: var(--danger-bg); color: var(--danger);
  font-size: .7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .05em; padding: .1rem .35rem; border-radius: 4px;
}
.dl-project {
  justify-self: start; text-align: left;
  background: none; border: none; padding: 0;
  color: var(--accent); font-size: .85rem; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}

/* ── Toast ──────────────────────────────────────────────────────────────── */

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(1.25rem + env(safe-area-inset-bottom)); z-index: 50;
  max-width: calc(100vw - 2rem);
  background: var(--ink); color: #fff;
  padding: .6rem 1rem; border-radius: 999px;
  font-size: .88rem; box-shadow: 0 4px 14px rgba(20, 24, 28, .22);
}

/* ── Wider screens ──────────────────────────────────────────────────────── */

@media (min-width: 40rem) {
  .toolbar { flex-direction: row; align-items: flex-end; }
  .search { flex: 1 1 auto; }
  .filters { flex: 0 0 auto; grid-template-columns: 11rem 11rem; }
  .form-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .deadline-row { grid-template-columns: 11rem 1fr auto; }
  .deadline-item { grid-template-columns: 13rem 1fr; align-items: baseline; }
  .deadline-item .dl-project { grid-column: 2; }
}

@media (min-width: 52rem) {
  .cards { grid-template-columns: 1fr 1fr; }
}

/* ── Motion ─────────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}