/* webbuddy — оформление. Без внешних шрифтов и скриптов. */
:root {
  --bg: #fbf9f4;
  --surface: #ffffff;
  --surface-2: #f3efe6;
  --text: #1e2328;
  --muted: #5d6671;
  --line: #e6e0d3;
  --accent: #17695c;
  --accent-ink: #ffffff;
  --accent-soft: #e2f0ec;
  --warn: #9a4a0b;
  --warn-soft: #fdf1e3;
  --warn-line: #f1d3ae;
  --c-security: #9a4a0b;
  --c-phone: #1f5fa8;
  --c-computer: #6b4bb0;
  --c-internet: #17695c;
  --shadow: 0 1px 2px rgba(30, 35, 40, .06), 0 4px 16px rgba(30, 35, 40, .05);
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --surface: #1c2024;
    --surface-2: #22272c;
    --text: #e9e6df;
    --muted: #a3abb4;
    --line: #2f353b;
    --accent: #5cc2ae;
    --accent-ink: #0d1f1b;
    --accent-soft: #19302b;
    --warn: #f0a868;
    --warn-soft: #2a2119;
    --warn-line: #4a3624;
    --c-security: #f0a868;
    --c-phone: #7fb0ea;
    --c-computer: #b69cf0;
    --c-internet: #5cc2ae;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 18px/1.65 var(--font);
}
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
img { max-width: 100%; height: auto; }
.muted { color: var(--muted); }

.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1rem; }
.narrow { max-width: 44rem; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--surface); padding: .5rem 1rem; z-index: 10; }

.ico { width: 1.5em; height: 1.5em; flex: none; }
.ico-s { width: 1.05em; height: 1.05em; }

/* шапка */
.top { border-bottom: 1px solid var(--line); background: var(--bg); }
.top-in { display: flex; align-items: center; gap: 1rem; min-height: 4rem; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: .55rem; color: var(--text); text-decoration: none;
  font-weight: 700; font-size: 1.2rem; letter-spacing: -.01em; }
.logo svg { width: 2rem; height: 2rem; }
.logo-bg { fill: var(--accent); }
.logo-fg { fill: var(--accent-ink); }
.logo-dot { fill: var(--accent); }
.top nav { margin-left: auto; display: flex; gap: .25rem; flex-wrap: wrap; }
.top nav a { color: var(--text); text-decoration: none; padding: .4rem .75rem; border-radius: 999px; font-size: 1rem; }
.top nav a:hover { background: var(--surface-2); }
.top nav a[aria-current] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

/* главная */
.hero { background: linear-gradient(180deg, var(--accent-soft), var(--bg)); border-bottom: 1px solid var(--line); }
.hero-in { padding-top: 3.5rem; padding-bottom: 3rem; }
.hero h1 { font-size: clamp(2.1rem, 6vw, 3.3rem); line-height: 1.1; margin: 0 0 1rem; letter-spacing: -.02em; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 40rem; margin: 0 0 1.4rem; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none;
  padding: .75rem 1.25rem; border-radius: 999px; font-weight: 600; margin: 0 .4rem .5rem 0; }
.btn:hover { filter: brightness(1.07); }
.btn-ghost { background: transparent; color: var(--accent); box-shadow: inset 0 0 0 2px var(--accent); }

.sec-title { display: flex; align-items: center; gap: .5rem; font-size: 1.45rem; margin: 2.8rem 0 1rem;
  letter-spacing: -.01em; }
.topics { display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem; }
@media (min-width: 64rem) { .topics { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 36rem) { .topics { grid-template-columns: 1fr; } }
.topic { display: flex; align-items: center; gap: .9rem; padding: 1.1rem 1.2rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--text);
  box-shadow: var(--shadow); transition: transform .15s ease; }
.topic:hover { transform: translateY(-2px); }
.topic > span:nth-child(2) { display: flex; flex-direction: column; line-height: 1.35; }
.topic .muted { font-size: .92rem; }
.topic .count { margin-left: auto; font-weight: 700; color: var(--muted); font-size: .95rem; }
.topic-security .ico { color: var(--c-security); }
.topic-phone .ico { color: var(--c-phone); }
.topic-computer .ico { color: var(--c-computer); }
.topic-internet .ico { color: var(--c-internet); }

.help { margin-top: 2.8rem; background: var(--warn-soft); border: 1px solid var(--warn-line);
  border-radius: var(--radius); padding: 1.3rem 1.5rem; }
.help h2 { display: flex; align-items: center; gap: .6rem; margin: 0 0 .6rem; font-size: 1.3rem; color: var(--warn); }
.help ol { margin: 0; padding-left: 1.3rem; }
.help li { margin: .45rem 0; }

/* карточки */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: transform .15s ease; }
.card:hover { transform: translateY(-2px); }
.card-link { display: flex; flex-direction: column; height: 100%; padding: 1.15rem 1.25rem; color: var(--text);
  text-decoration: none; }
.card h3 { font-size: 1.15rem; line-height: 1.35; margin: .5rem 0 .4rem; }
.card p { margin: 0 0 .6rem; color: var(--muted); font-size: 1rem; }
.card .meta { margin-top: auto; margin-bottom: 0; font-size: .88rem; }
.chip { display: inline-flex; align-items: center; gap: .35rem; font-size: .85rem; font-weight: 600;
  padding: .15rem .6rem; border-radius: 999px; background: var(--surface-2); align-self: flex-start; }
.chip-security { color: var(--c-security); }
.chip-phone { color: var(--c-phone); }
.chip-computer { color: var(--c-computer); }
.chip-internet { color: var(--c-internet); }
.more { margin: 1rem 0 0; font-weight: 600; }
.meta { color: var(--muted); font-size: .95rem; }

.page-head { padding: 2.5rem 0 .5rem; }
.page-head h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); margin: 0 0 .6rem; letter-spacing: -.02em; }
.cat-block .sec-title { margin-top: 2.2rem; margin-bottom: .2rem; }
.cat-block > p { margin: 0 0 1rem; }

/* статья */
.crumbs { padding-top: 1.8rem; font-size: .95rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.post h1 { font-size: clamp(1.9rem, 5.2vw, 2.6rem); line-height: 1.15; margin: .6rem 0 .8rem; letter-spacing: -.02em; }
.post .lede { margin-bottom: .6rem; }
.short { background: var(--accent-soft); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0 1rem; }
.short h2 { font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 0 0 .4rem; }
.short ul { list-style: none; margin: 0; padding: 0; }
.short li { display: flex; gap: .55rem; align-items: baseline; margin: .35rem 0; }
.short .ico { color: var(--accent); position: relative; top: .15em; }

.prose h2 { font-size: 1.5rem; line-height: 1.25; margin: 2.2rem 0 .7rem; letter-spacing: -.01em; }
.prose h3 { font-size: 1.2rem; margin: 1.6rem 0 .5rem; }
.prose p, .prose ul, .prose ol { margin: 0 0 1rem; }
.prose li { margin: .35rem 0; }
.prose li::marker { color: var(--muted); }
.prose code { font: .88em ui-monospace, Menlo, Consolas, monospace; background: var(--surface-2);
  border-radius: 5px; padding: .08em .35em; overflow-wrap: anywhere; }
.prose kbd { font: .85em ui-monospace, Menlo, Consolas, monospace; background: var(--surface-2);
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: .05em .4em; }
.prose .path { font-weight: 600; }
.prose blockquote { margin: 1.2rem 0; padding: .8rem 1.1rem; border-left: 4px solid var(--accent);
  background: var(--surface); border-radius: 0 10px 10px 0; }
.prose .note, .prose .warn { border-radius: 12px; padding: .9rem 1.1rem; margin: 1.2rem 0; }
.prose .note { background: var(--surface-2); }
.prose .warn { background: var(--warn-soft); border: 1px solid var(--warn-line); }
.prose .warn b:first-child { color: var(--warn); }
.prose table { border-collapse: collapse; width: 100%; margin: 0 0 1.2rem; font-size: 1rem; display: block;
  overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { color: var(--muted); font-weight: 600; }
.checklist { list-style: none; padding: 0; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .9rem 1.2rem; }
.checklist li { padding-left: 1.9rem; position: relative; }
.checklist li::before { content: ""; position: absolute; left: 0; top: .3em; width: 1.1rem; height: 1.1rem;
  border: 2px solid var(--accent); border-radius: 5px; }

.related { margin-top: 3rem; }
.related h2 { font-size: 1.3rem; }

/* инструменты */
.chip-tool { color: var(--accent); }
.tool { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.25rem; margin: 1.5rem 0 1rem; box-shadow: var(--shadow); }
.tool label { font-weight: 600; }
.tool-row { display: flex; gap: .5rem; margin-top: .5rem; flex-wrap: wrap; }
.tool input[type=text] { flex: 1 1 16rem; min-width: 0; font: inherit; font-size: 1rem; padding: .7rem .85rem;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--text); }
.tool input[type=text]:focus { border-color: var(--accent); outline: 2px solid var(--accent-soft); }
.tool-hint { font-size: .92rem; margin: .7rem 0 0; }
.tool fieldset { border: 0; padding: 0; margin: 0 0 1rem; }
.tool legend { font-weight: 600; margin-bottom: .45rem; padding: 0; }
.seg { display: flex; gap: .4rem; flex-wrap: wrap; }
.seg label { font-weight: 400; display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .8rem;
  border: 1px solid var(--line); border-radius: 999px; cursor: pointer; background: var(--bg); }
.seg label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.seg input { accent-color: var(--accent); margin: 0; }
.check { display: flex; gap: .5rem; align-items: center; font-weight: 400 !important; }
.check input { width: 1.15rem; height: 1.15rem; accent-color: var(--accent); }
button, .btn-sec { font: inherit; font-weight: 600; font-size: 1rem; border: 0; border-radius: 999px; cursor: pointer;
  padding: .7rem 1.2rem; background: var(--accent); color: var(--accent-ink); }
button:hover { filter: brightness(1.07); }
.btn-sec { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }

.tool-result { border-radius: var(--radius); padding: 1.1rem 1.25rem; margin: 1rem 0 1.5rem; border: 1px solid var(--line);
  background: var(--surface); }
.tool-result > :last-child { margin-bottom: 0; }
.result-title { font-size: 1.25rem; font-weight: 700; margin: 0 0 .5rem; }
.result-danger { background: #fdecea; border-color: #f5c2bc; }
.result-danger .result-title { color: #b42318; }
.result-warn { background: var(--warn-soft); border-color: var(--warn-line); }
.result-warn .result-title { color: var(--warn); }
.result-ok { background: var(--accent-soft); border-color: transparent; }
.result-ok .result-title { color: var(--accent); }
@media (prefers-color-scheme: dark) {
  .result-danger { background: #2e1a1a; border-color: #5a2d2a; }
  .result-danger .result-title { color: #ff9b8f; }
}
.addr { font: 1.05rem/1.5 ui-monospace, Menlo, Consolas, monospace; overflow-wrap: anywhere; margin: .2rem 0 .8rem; }
.addr mark { background: var(--accent); color: var(--accent-ink); border-radius: 4px; padding: 0 .2em; font-weight: 700; }
.addr-muted { color: var(--muted); }
.findings { list-style: none; padding: 0; margin: 0 0 .8rem; }
.findings li { position: relative; padding-left: 1.6rem; margin: .45rem 0; }
.findings li::before { position: absolute; left: 0; font-weight: 700; }
.f-danger::before { content: "✕"; color: #d92d20; }
.f-warn::before { content: "!"; color: var(--warn); left: .3rem !important; }
.f-info::before { content: "i"; color: var(--muted); font-style: italic; left: .35rem !important; }
.f-ok::before { content: "✓"; color: var(--accent); }

.pw { font: 700 clamp(1.15rem, 4.5vw, 1.6rem)/1.35 ui-monospace, Menlo, Consolas, monospace; overflow-wrap: anywhere;
  background: var(--surface); border: 1px dashed var(--accent); border-radius: 10px; padding: .6rem .8rem; margin: .2rem 0 .5rem;
  user-select: all; }
.pw-words { color: var(--muted); margin: 0 0 .8rem; }
.pw-strength { font-size: .95rem; }
.tool-result button { margin: .2rem .4rem .2rem 0; }

.quiz { margin: 1.5rem 0; }
.quiz-bar { height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin: -.4rem 0 1rem; }
.quiz-bar span { display: block; height: 100%; background: var(--accent); transition: width .3s ease; }
.quiz-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow); }
.quiz-ch { font-size: .9rem; font-weight: 600; color: var(--muted); margin: 0 0 .5rem; }
.quiz-context { font-style: italic; margin: 0 0 .5rem; }
.quiz-text { font-size: 1.15rem; margin: 0; }
.quiz-acts { display: flex; gap: .6rem; flex-wrap: wrap; margin: 1rem 0; }
.quiz-acts button { flex: 1 1 12rem; }

/* подвал */
.foot { margin-top: 4rem; border-top: 1px solid var(--line); background: var(--surface-2); }
.foot-in { padding-top: 1.6rem; padding-bottom: 2rem; font-size: .95rem; }
.foot p { margin: 0 0 .4rem; max-width: 44rem; }

@media (max-width: 36rem) {
  body { font-size: 17px; }
  .top nav { margin-left: 0; width: 100%; margin-bottom: .5rem; }
  .top nav a { padding: .35rem .6rem; }
  .hero-in { padding-top: 2.2rem; padding-bottom: 2rem; }
  .help { padding: 1.1rem 1.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .card, .topic { transition: none; }
}
@media print {
  .top nav, .foot, .related, .skip { display: none; }
  body { background: #fff; color: #000; }
}