/* ============ TOKENY ============ */
:root {
  --paper: #F5F3EC;
  --paper-raised: #FBFAF6;
  --ink: #1F2A24;
  --ink-soft: #4B564E;
  --river: #1B4B5A;      /* akcent podstawowy: woda / hydrologia */
  --river-light: #3E7688;
  --soil: #8C6A46;       /* akcent drugorzędny: geologia / prawo / instytucje */
  --ok: #3F7A52;
  --warn: #B23B3B;
  --hairline: #DAD5C4;
  --shadow: 0 8px 24px rgba(31,42,36,.10);

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", -apple-system, Segoe UI, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
}
.wrap { max-width: 920px; margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--river); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ============ NAGŁÓWEK ============ */
.site-header {
  background: var(--paper-raised);
  border-bottom: 1px solid var(--hairline);
  position: sticky; top: 0; z-index: 20;
}
.site-header__row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; gap: 20px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand__mark {
  width: 22px; height: 22px; border-radius: 50%;
  background: conic-gradient(from 200deg, var(--river), var(--river-light), var(--soil), var(--river));
  flex-shrink: 0;
}
.brand__text { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; line-height: 1.1; }
.brand__text small { font-weight: 400; color: var(--ink-soft); font-size: .85em; }

.site-nav { display: flex; align-items: center; gap: 2px; }
.site-nav a {
  color: var(--ink-soft); text-decoration: none; font-size: .92rem;
  padding: 8px 10px; border-radius: 5px; white-space: nowrap;
}
.site-nav a:hover, .site-nav a:focus-visible { background: var(--paper); color: var(--river); }

.nav-dropdown { position: relative; }
.nav-dropdown__toggle {
  font-family: var(--font-body); color: var(--ink-soft); font-size: .92rem;
  background: none; border: none; cursor: pointer;
  padding: 8px 10px; border-radius: 5px; display: flex; align-items: center; gap: 4px;
}
.nav-dropdown__toggle:hover, .nav-dropdown__toggle:focus-visible,
.nav-dropdown__toggle[aria-expanded="true"] { background: var(--paper); color: var(--river); }
.nav-dropdown__caret { font-size: .7em; transition: transform .15s ease; }
.nav-dropdown__toggle[aria-expanded="true"] .nav-dropdown__caret { transform: rotate(180deg); }

.nav-dropdown__panel {
  display: none; flex-direction: column; gap: 1px;
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 300px; max-width: 340px;
  background: var(--paper-raised); border: 1px solid var(--hairline); border-radius: 10px;
  box-shadow: var(--shadow); padding: 8px; z-index: 30;
}
.nav-dropdown__panel.is-open { display: flex; }
.nav-dropdown__panel a {
  color: var(--ink); text-decoration: none; font-size: .92rem; line-height: 1.3;
  padding: 9px 10px; border-radius: 6px; white-space: normal;
}
.nav-dropdown__panel a:hover, .nav-dropdown__panel a:focus-visible { background: var(--paper); color: var(--river); }
.nav-dropdown__extra {
  margin-top: 6px; padding-top: 12px !important;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono); font-size: .8rem !important; color: var(--ink-soft);
}

@media (max-width: 640px) {
  .site-nav { flex-wrap: wrap; }
  .nav-dropdown__panel { left: auto; right: 0; min-width: 260px; }
}

/* ============ UKŁAD GŁÓWNY + SYGNATURA: profil poziomu wód ============ */
.page-grid {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 28px;
  padding: 40px 20px 80px;
}
.profile-rail {
  position: sticky; top: 90px; height: calc(100vh - 160px);
  display: flex; flex-direction: column; align-items: center;
}
.profile-rail__track {
  position: relative; width: 3px; flex: 1;
  background: linear-gradient(var(--hairline), var(--hairline)) center/1px 100% no-repeat;
  border-radius: 2px;
}
.profile-rail__track::before {
  content: ""; position: absolute; inset: 0;
  background: var(--river);
  opacity: .18;
}
.profile-rail__level {
  position: absolute; left: 50%; transform: translate(-50%, -50%);
  top: var(--poziom, 20%);
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--river);
  box-shadow: 0 0 0 4px rgba(27,75,90,.15);
}
.profile-rail__label {
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: .03em;
  color: var(--ink-soft); text-align: center; margin-top: 10px; text-transform: uppercase;
}
@media (max-width: 720px) { .profile-rail { display: none; } .page-grid { grid-template-columns: 1fr; } }

/* ============ TREŚĆ ============ */
.content { max-width: 720px; }
.eyebrow {
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .08em;
  font-size: .74rem; color: var(--river); margin: 0 0 6px;
}
.content h1 {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.15; margin: 0 0 14px;
}
.content h2 {
  font-family: var(--font-display); font-weight: 600; font-size: 1.5rem;
  margin: 2.2em 0 .6em; padding-top: .3em; border-top: 1px solid var(--hairline);
}
.content h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; margin: 1.6em 0 .5em; }
.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 0 0 1.6em; }
.content p { margin: 0 0 1.1em; }
.content ul, .content ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.content li { margin-bottom: .4em; }
.content a { color: var(--river); text-decoration-thickness: 1px; text-underline-offset: 2px; }
.content blockquote {
  margin: 1.6em 0; padding: .2em 1.2em; border-left: 3px solid var(--soil);
  color: var(--ink-soft); font-style: italic;
}
.content table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .93rem; }
.content th, .content td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--hairline); }
.content code { font-family: var(--font-mono); background: var(--paper-raised); padding: .12em .4em; border-radius: 4px; font-size: .9em; }
.content img {
  max-width: 100%; height: auto; display: block; margin: 1.6em 0;
  border-radius: 8px; border: 1px solid var(--hairline);
}
.content figcaption, .content img + em {
  display: block; font-size: .85rem; color: var(--ink-soft); margin-top: -1.2em; margin-bottom: 1.6em;
}

/* ============ ZNACZNIKI [ai.nr] ============ */
.ai-block {
  margin-top: 2.6em; padding: 18px 20px; background: var(--paper-raised);
  border: 1px solid var(--hairline); border-radius: 10px;
}
.ai-block__title { font-family: var(--font-display); font-size: 1.05rem; margin: 0 0 6px; }
.ai-block__intro { font-size: .9rem; color: var(--ink-soft); margin: 0 0 12px; }
.ai-block__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.ai-block__meta { font-family: var(--font-mono); font-size: .72rem; color: var(--ink-soft); }
.ai-tag {
  font-family: var(--font-mono); font-size: .8rem; cursor: pointer;
  background: #fff; border: 1px solid var(--river); color: var(--river);
  border-radius: 5px; padding: 3px 8px;
}
.ai-tag:hover, .ai-tag:focus-visible { background: var(--river); color: #fff; }

/* ============ TABELA ŹRÓDEŁ ============ */
.sources-block { margin-top: 2em; }
.sources-block__title { font-family: var(--font-display); font-size: 1.05rem; margin: 0 0 10px; }
.sources-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.sources-table th {
  text-align: left; font-family: var(--font-mono); font-weight: 500; text-transform: uppercase;
  font-size: .68rem; letter-spacing: .04em; color: var(--ink-soft);
  border-bottom: 1px solid var(--ink-soft); padding: 6px 10px;
}
.sources-table td { padding: 8px 10px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.status { font-size: .82rem; white-space: nowrap; }
.status--ok { color: var(--ok); }
.status--warn { color: var(--warn); }

.page-footer { margin-top: 2.4em; padding-top: 1.2em; border-top: 1px solid var(--hairline); font-size: .85rem; color: var(--ink-soft); }

/* ============ PANEL BOCZNY (prompty AI) ============ */
.ai-panel {
  position: fixed; top: 0; right: 0; height: 100vh; width: min(420px, 92vw);
  background: var(--paper-raised); box-shadow: var(--shadow);
  transform: translateX(100%); transition: transform .28s ease;
  z-index: 50; overflow-y: auto; border-left: 1px solid var(--hairline);
}
.ai-panel.is-open { transform: translateX(0); }
.ai-panel__inner { padding: 24px 22px 60px; }
.ai-panel__close {
  background: none; border: none; font-size: 1.1rem; cursor: pointer; color: var(--ink-soft);
  float: right;
}
.ai-panel__id { font-family: var(--font-mono); color: var(--river); font-size: .8rem; margin: 0; }
.ai-panel__title { font-family: var(--font-display); font-size: 1.15rem; margin: .2em 0 1em; }
.ai-panel h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); margin: 1.4em 0 .4em; }
.ai-panel__prompt, .ai-panel__response { font-size: .92rem; white-space: pre-wrap; }
.ai-panel-scrim {
  position: fixed; inset: 0; background: rgba(31,42,36,.25); z-index: 40;
}

/* ============ STOPKA ============ */
.site-footer { border-top: 1px solid var(--hairline); padding: 22px 0 60px; font-size: .82rem; color: var(--ink-soft); }
.site-footer a { color: var(--ink-soft); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ai-panel { transition: none; }
}

.lang-switch {
  font-family: var(--font-mono); font-size: .78rem !important;
  border: 1px solid var(--river-light); border-radius: 5px;
  margin-left: 4px;
}