/* =========================================================================
   styles.css — spokojny, akademicki interfejs badania
   Fonty wyłącznie systemowe. Brak zasobów zewnętrznych.
   ========================================================================= */

:root {
  --ink: #20282b;          /* tekst podstawowy */
  --ink-soft: #4c585d;     /* tekst pomocniczy (kontrast > 7:1 na tle) */
  --paper: #f6f7f8;        /* tło strony */
  --card: #ffffff;         /* tło karty */
  --line: #d4dadd;         /* obramowania */
  --accent: #10555c;       /* akcent — głęboki morski, kontrast 7,9:1 na białym */
  --accent-ink: #0c4046;
  --accent-soft: #e3eef0;
  --warn-bg: #fdf3e0;
  --warn-line: #d9a441;
  --warn-ink: #6b4a00;
  --error: #a02020;
  --error-bg: #fbeeee;
  --ok: #1d6b3a;
  --radius: 10px;
  --maxw: 46rem;
  font-size: 17px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

/* ---- Nagłówek i pasek postępu ---------------------------------------- */

.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0.7rem 1rem 0.6rem;
}
.app-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.study-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
}
.step-label {
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
@media (prefers-reduced-motion: reduce) {
  .progress-native::-webkit-progress-value { transition: none; }
}

/* ---- Układ główny ------------------------------------------------------ */

main {
  max-width: var(--maxw);
  margin: 1.4rem auto 3rem;
  padding: 0 1rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.7rem;
}
@media (max-width: 480px) {
  .card { padding: 1.1rem 1rem; }
  :root { font-size: 16px; }
}

h1 { font-size: 1.45rem; line-height: 1.3; margin: 0 0 0.9rem; }
/* v2.3.9: na ekranach badania jeden nagłówek wystarcza jako wyraźny punkt orientacyjny.
   Kolor korzysta z tego samego akcentu co główne przyciski. */
#screen > h1 { color: var(--accent); }
/* v2.3.7: H1 otrzymuje fokus programatycznie dla czytników ekranu po zmianie
   sekcji, ale nie jest elementem interaktywnym — nie pokazujemy ramki fokusu. */
h1[tabindex="-1"]:focus { outline: none; }
h2 { font-size: 1.15rem; margin: 1.4rem 0 0.6rem; }
p  { margin: 0 0 0.9rem; }

.body-copy p { margin: 0 0 1rem; }
.body-copy strong { font-weight: 700; color: var(--ink); }
/* v2.3.9: dane eyebrow pozostają w JSON dla zgodności i ewentualnego powrotu,
   ale nie są prezentowane wizualnie ani czytnikom ekranu. */
.section-eyebrow { display: none; }

/* ---- Placeholder „DO UZUPEŁNIENIA" ------------------------------------ */

.placeholder-flag {
  display: inline-block;
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  color: var(--warn-ink);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.45rem;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}
.placeholder-box {
  background: var(--warn-bg);
  border: 1px dashed var(--warn-line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  color: var(--warn-ink);
  white-space: pre-wrap;
}

/* ---- Materiał bodźcowy ------------------------------------------------- */

.stimulus-box {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  background: #fbfcfc;
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
  margin: 0.4rem 0 1rem;
}

/* ---- Pytania ------------------------------------------------------------ */

fieldset.question {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
  padding: 1.1rem 0 1.2rem;
}
fieldset.question:first-of-type { border-top: 0; padding-top: 0.3rem; }
legend.q-text, .q-text {
  font-weight: 600;
  padding: 0;
  margin: 0 0 0.6rem;
  line-height: 1.45;
}
.req-mark { color: var(--error); font-weight: 700; }
.q-help { font-size: 0.85rem; color: var(--ink-soft); margin: -0.3rem 0 0.6rem; }
.number-help { margin: 0.35rem 0 0.6rem; }

.choice-list { display: flex; flex-direction: column; gap: 0.35rem; }
.choice-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}
.choice-item:hover { border-color: var(--accent); }
.choice-item input { margin-top: 0.25rem; flex: 0 0 auto; }
.choice-item input:focus-visible + span { text-decoration: underline; }

/* Likert */
.likert-row {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  align-items: stretch;
}
.likert-option {
  flex: 1 1 3rem;
  min-width: 3rem;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.55rem 0.2rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}
.likert-option:hover { border-color: var(--accent); }
.likert-option input { margin: 0; }
.likert-option .num { font-weight: 600; }
.likert-option.checked,
.choice-item.checked {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.likert-anchors {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.35rem;
  gap: 1rem;
}

input[type="number"], input[type="text"], input[type="email"],
input[type="password"], textarea, select {
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  max-width: 100%;
}
input[type="number"] { width: 8rem; }
textarea { width: 100%; min-height: 5.5rem; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---- Błędy i komunikaty ------------------------------------------------- */

.field-error {
  color: var(--error);
  background: var(--error-bg);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font-size: 0.88rem;
  margin-top: 0.5rem;
}
.form-alert {
  border: 1px solid var(--error);
  background: var(--error-bg);
  color: var(--error);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  margin-bottom: 1rem;
}
.notice {
  border: 1px solid var(--line);
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  margin: 0.8rem 0;
}
.notice.warning { background: var(--warn-bg); border-color: var(--warn-line); color: var(--warn-ink); }
.notice.success { border-color: var(--ok); color: var(--ok); background: #eef7f0; }

.withdrawal-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.55rem;
  letter-spacing: 0.12em;
  display: inline-block;
  margin: 0.45rem 0 0.75rem;
  user-select: all;
}
.withdrawal-copy-row {
  margin-bottom: 0.9rem;
}

/* ---- Przyciski nawigacji ------------------------------------------------ */

.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1.6rem;
  flex-wrap: wrap;
}
button {
  font: inherit;
  border-radius: 8px;
  padding: 0.6rem 1.3rem;
  cursor: pointer;
  border: 1px solid var(--accent);
}
button.primary {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
button.primary:hover { background: var(--accent-ink); }
button.secondary {
  background: #fff;
  color: var(--accent-ink);
}
button.secondary:hover { background: var(--accent-soft); }
button.quiet {
  background: transparent;
  border-color: transparent;
  color: var(--ink-soft);
  text-decoration: underline;
  padding: 0.6rem 0.4rem;
}
button.quiet:hover { color: var(--error); }
button.danger {
  background: #fff;
  border-color: var(--error);
  color: var(--error);
}
button.danger:hover { background: var(--error-bg); }
button:disabled { opacity: 0.55; cursor: not-allowed; }

/* ---- Stopka -------------------------------------------------------------- */

.app-footer {
  max-width: var(--maxw);
  margin: 0 auto 2rem;
  padding: 0 1rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.app-footer a, a { color: var(--accent-ink); }

.demo-banner {
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-line);
  color: var(--warn-ink);
  text-align: center;
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  font-weight: 600;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

/* ---- Panel administratora ------------------------------------------------ */

.admin-layout { max-width: 72rem; margin: 1.2rem auto 3rem; padding: 0 1rem; }
.admin-grid { display: grid; grid-template-columns: 260px 1fr; gap: 1rem; }
@media (max-width: 860px) { .admin-grid { grid-template-columns: 1fr; } }
.admin-nav { display: flex; flex-direction: column; gap: 0.3rem; }
.admin-nav button {
  text-align: left; background: #fff; border: 1px solid var(--line);
  color: var(--ink);
}
.admin-nav button[aria-current="true"] {
  border-color: var(--accent); background: var(--accent-soft); font-weight: 600;
}
.admin-panel { min-height: 20rem; }
table.data {
  border-collapse: collapse; width: 100%; font-size: 0.9rem; background: #fff;
}
table.data th, table.data td {
  border: 1px solid var(--line); padding: 0.45rem 0.6rem; text-align: left;
  vertical-align: top;
}
table.data th { background: var(--accent-soft); }
.badge {
  display: inline-block; border-radius: 999px; font-size: 0.72rem;
  padding: 0.1rem 0.55rem; border: 1px solid var(--line); background: #fff;
  font-weight: 600;
}
.badge.active { border-color: var(--ok); color: var(--ok); }
.badge.draft { border-color: var(--warn-line); color: var(--warn-ink); }
.badge.archived { color: var(--ink-soft); }
.row-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.row-actions button { padding: 0.25rem 0.7rem; font-size: 0.85rem; }
.editor-block {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 0.9rem 1rem; margin-bottom: 0.8rem;
}
.editor-block.locked { background: var(--paper); }
.field-row { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 0.7rem; }
.field-row label { font-size: 0.85rem; font-weight: 600; }
.inline-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }


/* ---------------------------------------------------------------------
   Klasy narzędziowe (wersja 2.1): zastępują dawne style inline, aby
   aplikacja działała pod restrykcyjnym CSP style-src 'self'
   (bez 'unsafe-inline'). Style ustawiane przez JS jako atrybut style
   byłyby blokowane przez taką politykę.
   --------------------------------------------------------------------- */
.u-flex-gap { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.u-w-full { width: 100%; }
.u-w-code { width: 100%; max-width: 20rem; }
.u-mt-05 { margin-top: 0.5rem; }
.u-mt-08 { margin-top: 0.8rem; }
.u-mt-1 { margin-top: 1rem; }
.u-ml-05 { margin-left: 0.5rem; }
.u-label-strong { font-weight: 600; display: block; margin-bottom: 0.3rem; }
.u-flex-between { display: flex; justify-content: space-between; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.u-flex-between-05 { display: flex; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; }
.u-bg-soft { background: #fbfcfc; }
.u-opt-row { display: flex; gap: 0.4rem; align-items: center; margin-bottom: 0.3rem; flex-wrap: wrap; }
.u-w-7 { width: 7rem; }
.u-flex1-min10 { flex: 1; min-width: 10rem; }
.u-small { font-size: 0.8rem; }
.u-ta-tall { min-height: 16rem; width: 100%; }


/* Natywny pasek postępu (wersja 2.2) — zastępuje dawny div z szerokością
   ustawianą przez JS; wartość aktualizowana atrybutem value, więc nie ma
   żadnej styczności z CSP style-src. */
.progress-native {
  width: 100%;
  height: 0.55rem;
  appearance: none;
  -webkit-appearance: none;
  border: none;
  border-radius: 999px;
  overflow: hidden;
  background: var(--border, #d9e0e2);
  display: block;
}
.progress-native::-webkit-progress-bar { background: var(--border, #d9e0e2); border-radius: 999px; }
.progress-native::-webkit-progress-value { background: var(--accent, #10555c); border-radius: 999px; transition: width 0.25s ease; }
.progress-native::-moz-progress-bar { background: var(--accent, #10555c); border-radius: 999px; }

/* v2.3.2 — materiał bodźcowy jako obrazy (responsywne, bez zniekształcenia) */
.stimulus-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0.5rem 0 1rem;
  border: 1px solid var(--border, #d0d0d0);
  border-radius: 8px;
}
.stimulus-part-label {
  font-weight: 600;
}

/* v2.3.3 — instrukcja przed częścią 1/3 i pełny opis skali 1–7 */
.stimulus-instruction { margin-bottom: 1rem; }
.stimulus-instruction p:first-child { font-weight: 400; }
.likert-scale-key {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.45rem;
}
.scale-legend-vertical {
  margin: 0.6rem 0 0.9rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.scale-legend-title { font-weight: 600; margin-bottom: 0.2rem; }
.scale-legend-line { line-height: 1.45; }
.text-link {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--accent);
  padding: 0;
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
}
.rodo-link { margin: 0.15rem 0 0.3rem; }
.legal-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(20, 32, 35, 0.48);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.legal-modal {
  width: min(760px, 100%);
  max-height: min(86vh, 900px);
  overflow: auto;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 1.1rem 1.25rem 1.35rem;
}
.legal-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: -1.1rem;
  background: #fff;
  padding: 1.1rem 0 0.7rem;
  z-index: 1;
}
.legal-modal-head h2 { margin: 0; color: var(--accent); }
.legal-modal-content .body-copy p { margin: 0 0 0.85rem; }