/* CHEMIA SGP (SZKOŁA GIMNAZJALNA PROFILOWANA) NOWA STRONA GŁÓWNA */

:root {
  --blue: #05b;
  --blue-light: #3d8fe6;
  --blue-mid: #1a73d4;
  --blue-dark: #004a9c;
  --blue-edge: #003a7a;
  --steel-hi: #f7f9fb;
  --steel-1: #e6eaee;
  --steel-2: #d2d8de;
  --steel-3: #bfc7cf;
  --steel-line: #9aa4ae;
  --steel-dark: #5d6873;
  --steel-darker: #3f4852;
  --ink: #1d242b;
}

html {
  /* szczotkowany metal: drobne pionowe rysy + łagodny gradient */
  background-color: #aab3bc;
  background-image:
    repeating-linear-gradient(90deg,
      rgba(255, 255, 255, .13) 0, rgba(255, 255, 255, .13) 1px,
      rgba(0, 0, 0, .05) 1px, rgba(0, 0, 0, .05) 2px,
      rgba(255, 255, 255, 0) 2px, rgba(255, 255, 255, 0) 4px),
    linear-gradient(to bottom, #c9d0d7 0%, #aab3bc 100%);
  min-height: 100%;
}

body {
  box-sizing: border-box;
  max-width: 760px;
  margin: 24px auto;
  padding: 0 0 24px;
  font-family: "Lucida Grande", "Lucida Sans Unicode", Tahoma, Verdana, sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
  background:
    repeating-linear-gradient(90deg,
      rgba(255, 255, 255, .35) 0, rgba(255, 255, 255, .35) 1px,
      rgba(0, 0, 0, .025) 1px, rgba(0, 0, 0, .025) 2px,
      rgba(255, 255, 255, 0) 2px, rgba(255, 255, 255, 0) 4px),
    linear-gradient(to bottom, #eef1f4 0%, #dde2e7 100%);
  /* podwójna ramka: ciemna zewnętrzna + jasna fazka wewnętrzna */
  border: 1px solid #6c7782;
  outline: 1px solid #f4f6f8;
  outline-offset: -2px;
}

/* ---------- pasek języków ---------- */
body > span:first-child {
  display: block;
  padding: 6px 14px;
  font-size: 12px;
  text-align: right;
  color: var(--steel-darker);
  background: linear-gradient(to bottom,
    #fdfdfe 0%, #e9edf0 50%, #d6dce1 50%, #e3e7eb 100%);
  border-bottom: 1px solid var(--steel-line);
}

body > span:first-child a {
  display: inline-block;
  margin: 0 1px;
  padding: 1px 8px;
  color: var(--blue);
  text-decoration: none;
  background: linear-gradient(to bottom, #ffffff 0%, #eef1f4 50%, #dbe0e5 50%, #e8ecef 100%);
  border: 1px solid var(--steel-line);
  border-top-color: #fff;
  border-left-color: #cfd5db;
}

body > span:first-child a:hover {
  color: #fff;
  background: linear-gradient(to bottom, var(--blue-light) 0%, var(--blue-mid) 50%, var(--blue) 50%, var(--blue-dark) 100%);
  border-color: var(--blue-edge);
}

/* ---------- nagłówek: błyszczący niebieski pasek ---------- */
h1 {
  margin: 0;
  padding: 18px 20px 16px;
  font-size: 28px;
  font-weight: bold;
  letter-spacing: .5px;
  color: #fff;
  background: linear-gradient(to bottom,
    #4a9bf0 0%, #2a80dd 49%, var(--blue) 50%, var(--blue-dark) 100%);
  border-top: 1px solid #8cc4ff;
  border-bottom: 1px solid var(--blue-edge);
}

/* ---------- podtytuł: grawerowany pas ---------- */
h1 + p {
  margin: 0;
  padding: 7px 20px;
  font-size: 12px;
  letter-spacing: .3px;
  text-transform: uppercase;
  color: var(--steel-darker);
  background: linear-gradient(to bottom, #cdd4db 0%, #e1e6ea 100%);
  border-top: 1px solid #fff;
  border-bottom: 1px solid var(--steel-line);
}

/* ---------- "Rok 1": metalowa zakładka ---------- */
h3 {
  margin: 20px 16px 10px;
  padding: 6px 12px;
  font-size: 15px;
  color: var(--ink);
  background: linear-gradient(to bottom,
    #ffffff 0%, #eef1f4 50%, #d5dbe0 50%, #e4e8ec 100%);
  border: 1px solid var(--steel-line);
  border-left: 8px solid var(--blue);
  border-top-color: #fff;
}

/* ---------- lista ---------- */
ol {
  counter-reset: lekcja;
  list-style: none;
  margin: 0 16px;
  padding: 0;
}

/* nagłówki działów (<b> wewnątrz <ol>): szczotkowana stal */
ol > b {
  display: block;
  margin: 18px 0 -1px;
  padding: 6px 12px;
  font-size: 13px;
  letter-spacing: .3px;
  color: #fff;
  background: linear-gradient(to bottom,
    #7b8794 0%, #66727f 49%, var(--steel-dark) 50%, var(--steel-darker) 100%);
  border: 1px solid #2f363e;
  border-top-color: #9aa6b2;
}

ol > b:first-child {
  margin-top: 0;
}

/* wiersz listy: metalowa płytka z numerem */
ol > li {
  counter-increment: lekcja;
  display: flex;
  align-items: stretch;
  margin: 0 0 -1px;
  background: linear-gradient(to bottom, #ffffff 0%, #f1f4f6 50%, #e3e7eb 50%, #ebeef1 100%);
  border: 1px solid var(--steel-3);
  border-top-color: #fff;
}

ol > li::before {
  content: counter(lekcja);
  flex: 0 0 2.8em;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  color: var(--steel-darker);
  background: linear-gradient(to bottom, #e9edf0 0%, #d9dee3 50%, #c6cdd4 50%, #d0d6dc 100%);
  border-right: 1px solid var(--steel-line);
}

ol > li a {
  flex: 1;
  display: block;
  padding: 7px 12px;
  color: var(--blue);
  text-decoration: none;
}

/* najechanie: błyszczący niebieski przycisk */
ol > li:hover {
  position: relative;
  border-color: var(--blue-edge);
  background: linear-gradient(to bottom,
    var(--blue-light) 0%, var(--blue-mid) 50%, var(--blue) 50%, var(--blue-dark) 100%);
}

ol > li:hover::before {
  color: #fff;
  background: linear-gradient(to bottom, #2b6fc0 0%, #14589f 50%, #004a9c 50%, #003f86 100%);
  border-right-color: var(--blue-edge);
}

ol > li:hover a {
  color: #fff;
}

ol > li a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -4px;
  background: var(--blue);
  color: #fff;
}

ol > li a:visited {
  color: #4a3f9a;
}

ol > li:hover a:visited {
  color: #fff;
}

.hometext{
  margin-left: 15px;
  margin-right: 15px;
}

@media (max-width: 800px) {
  body {
    margin: 0;
    border-left: 0;
    border-right: 0;
  }
  h1 {
    font-size: 22px;
  }
}