/* ============================================================
   Летописец — Руководство пользователя
   Наследует токены и базу из styles.css.
   Здесь: layout со «липким» оглавлением, содержимое, интерактив.
   ============================================================ */

/* reading progress */
.g-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 200;
  background: transparent; pointer-events: none;
}
.g-progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent-2), var(--purple));
  box-shadow: 0 0 12px var(--glow);
}

/* ---------- guide hero ---------- */
.g-hero { position: relative; overflow: hidden; padding: calc(var(--nav-h) + 68px) 0 56px; }
.g-hero .hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(55% 55% at 78% 0%, var(--accent-soft), transparent 60%),
    radial-gradient(45% 55% at 8% 20%, var(--purple-soft), transparent 62%);
}
.g-hero .hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: 0.45;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(75% 60% at 50% 0%, #000 30%, transparent 78%);
          mask-image: radial-gradient(75% 60% at 50% 0%, #000 30%, transparent 78%);
}
.g-hero .wrap { position: relative; z-index: 1; }
.g-back {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 500;
  color: var(--text-2); margin-right: 8px; transition: color 0.13s; vertical-align: middle;
}
/* .g-back и .eyebrow — атомарные inline-боксы в одной строке: по умолчанию они выравниваются
   по baseline (у .g-back — от svg-иконки, у .eyebrow — от 1px-линии ::before), и текст
   «Руководство пользователя» проседает на несколько px. Выравниваем оба по middle; вертикальных
   полей у .g-back быть не должно — margin входит в inline-бокс и снова сдвигает строку. */
.g-hero .eyebrow { vertical-align: middle; }
.g-back:hover { color: var(--accent-2); }
.g-back svg { width: 15px; height: 15px; }
.g-hero h1 {
  font-size: clamp(34px, 5vw, 58px); font-weight: 600; letter-spacing: -0.033em;
  line-height: 1.04; margin: 18px 0 0; max-width: 900px; text-wrap: balance;
}
.g-hero .lede {
  font-size: clamp(17px, 2vw, 20px); color: var(--text-1); line-height: 1.58;
  max-width: 640px; margin: 22px 0 0; text-wrap: pretty;
}
.g-hero-meta { display: flex; align-items: center; gap: 12px 22px; flex-wrap: wrap; margin-top: 30px; }
.g-hero-meta .m { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--text-2); }
.g-hero-meta .m svg { width: 16px; height: 16px; color: var(--accent-2); }
.g-hero-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-3); }

/* ---------- layout: sticky TOC + content ---------- */
.g-layout {
  display: grid; grid-template-columns: 244px minmax(0, 1fr); gap: 64px;
  padding: 56px 0 40px; align-items: start;
}
.toc { position: sticky; top: calc(var(--nav-h) + 24px); }
.toc-label {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-3); padding: 0 0 12px 14px;
}
.toc ol { list-style: none; margin: 0; padding: 0; position: relative; }
.toc ol::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 2px;
  background: var(--border); border-radius: 2px;
}
.toc a {
  position: relative; display: flex; align-items: baseline; gap: 10px;
  padding: 7px 12px 7px 16px; font-size: 14px; color: var(--text-2); line-height: 1.35;
  border-radius: var(--r-sm); transition: color 0.14s, background 0.14s;
}
.toc a .num { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); min-width: 18px; }
.toc a::before {
  content: ""; position: absolute; left: -1px; top: 50%; transform: translateY(-50%) scaleY(0);
  width: 2px; height: 20px; border-radius: 2px; background: var(--accent);
  box-shadow: 0 0 10px var(--glow); transition: transform 0.2s;
}
.toc a:hover { color: var(--text-0); }
.toc a.active { color: var(--text-0); background: rgba(255,255,255,0.04); }
.toc a.active .num { color: var(--accent-2); }
.toc a.active::before { transform: translateY(-50%) scaleY(1); }

/* ---------- content sections ---------- */
.g-content { min-width: 0; }
.g-sec { scroll-margin-top: calc(var(--nav-h) + 24px); }
.g-sec + .g-sec { margin-top: 88px; padding-top: 88px; border-top: 1px solid var(--border); }
.g-sec-head { display: flex; align-items: center; gap: 16px; }
.g-sec-num {
  font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--accent-2);
  width: 42px; height: 42px; flex-shrink: 0; border-radius: var(--r-md);
  display: grid; place-items: center; background: var(--accent-soft); border: 1px solid var(--accent-line);
}
.g-sec h2 {
  font-size: clamp(26px, 3.2vw, 36px); font-weight: 600; letter-spacing: -0.028em;
  line-height: 1.1; margin: 0; text-wrap: balance;
}
.g-sec > p, .g-sub > p { font-size: 16.5px; color: var(--text-1); line-height: 1.65; margin: 20px 0 0; text-wrap: pretty; }
.g-sec > p b, .g-sub > p b { color: var(--text-0); font-weight: 600; }
.g-sec > p:first-of-type { margin-top: 22px; }
.g-lead { font-size: 18.5px !important; color: var(--text-0) !important; }

.g-sub { margin-top: 40px; }
.g-sub h3 {
  font-size: 20px; font-weight: 600; letter-spacing: -0.015em; margin: 0;
  display: flex; align-items: center; gap: 11px;
}
.g-sub h3 .hi { color: var(--accent-2); display: grid; place-items: center; }
.g-sub h3 .hi svg { width: 20px; height: 20px; }

/* ---------- screenshots ---------- */
.g-shot { margin-top: 28px; }
.g-shot .win { position: relative; }
.g-shot .win::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03);
}
.g-shot.glow-wrap { position: relative; }
.g-shot.glow-wrap::before {
  content: ""; position: absolute; inset: -6% -4% 10%; z-index: 0; pointer-events: none;
  background: radial-gradient(55% 55% at 50% 40%, var(--glow), transparent 70%); opacity: 0.4; filter: blur(24px);
}
.g-shot .win { z-index: 1; }
.g-cap {
  display: flex; align-items: flex-start; gap: 9px; margin-top: 16px;
  font-size: 14px; color: var(--text-2); line-height: 1.55; font-style: italic;
}
.g-cap svg { width: 15px; height: 15px; color: var(--accent-2); flex-shrink: 0; margin-top: 3px; }

/* dark shot without chrome (mini window) */
.g-shot-dark { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--border-2); box-shadow: var(--shadow-lg); position: relative; z-index: 1; }

/* ---------- bullet / feature lists ---------- */
.g-list { display: flex; flex-direction: column; gap: 16px; margin-top: 26px; }
.g-li { display: flex; gap: 14px; }
.g-li .ic {
  width: 38px; height: 38px; border-radius: var(--r-sm); flex-shrink: 0; display: grid; place-items: center;
  color: var(--accent-2); background: var(--accent-soft); border: 1px solid var(--accent-line);
}
.g-li .ic svg { width: 18px; height: 18px; }
.g-li .ft { font-size: 15.5px; font-weight: 600; color: var(--text-0); }
.g-li .fd { font-size: 14.5px; color: var(--text-2); margin-top: 3px; line-height: 1.55; }
.g-li .fd b { color: var(--text-1); font-weight: 600; }

/* compact checklist */
.g-checks { display: grid; gap: 12px; margin-top: 24px; }
.g-check { display: flex; align-items: flex-start; gap: 11px; font-size: 15px; color: var(--text-1); line-height: 1.55; }
.g-check .ck { width: 22px; height: 22px; flex-shrink: 0; border-radius: 6px; display: grid; place-items: center; color: var(--accent-2); background: var(--accent-soft); border: 1px solid var(--accent-line); margin-top: 1px; }
.g-check .ck svg { width: 13px; height: 13px; }
.g-check b { color: var(--text-0); font-weight: 600; }

/* ---------- callout ---------- */
.callout {
  display: flex; gap: 15px; margin-top: 28px; padding: 20px 22px; border-radius: var(--r-md);
  background: var(--bg-2); border: 1px solid var(--border-2); position: relative; overflow: hidden;
}
.callout::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); }
.callout .ci { width: 24px; height: 24px; flex-shrink: 0; color: var(--accent-2); }
.callout .ci svg { width: 24px; height: 24px; }
.callout .ct { font-size: 15px; color: var(--text-1); line-height: 1.6; }
.callout .ct b { color: var(--text-0); font-weight: 600; }
.callout.tip::before { background: var(--ok); }
.callout.tip .ci { color: var(--ok); }
.callout.warn::before { background: var(--warn); }
.callout.warn .ci { color: var(--warn); }

/* ---------- quick-start steps ---------- */
.qs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 32px; }
.qs-card {
  position: relative; padding: 26px 22px 24px; border-radius: var(--r-lg);
  background: var(--bg-2); border: 1px solid var(--border); transition: border-color 0.15s, transform 0.14s, background 0.15s;
}
.qs-card:hover { border-color: var(--accent-line); transform: translateY(-3px); background: var(--bg-3); }
.qs-card .n {
  font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: #fff;
  width: 34px; height: 34px; border-radius: var(--r-sm); display: grid; place-items: center;
  background: linear-gradient(180deg, var(--accent-2), var(--accent)); box-shadow: 0 8px 22px -8px var(--glow);
}
.qs-card h4 { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin: 18px 0 0; }
.qs-card p { font-size: 14px; color: var(--text-2); margin: 9px 0 0; line-height: 1.55; }
.qs-card .ic { position: absolute; top: 22px; right: 22px; color: var(--text-3); }
.qs-card .ic svg { width: 22px; height: 22px; }

/* ---------- keyboard chips ---------- */
.kbd {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; margin: 0 2px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500; color: var(--text-0);
  background: var(--bg-3); border: 1px solid var(--border-3); border-bottom-width: 2px; border-radius: 7px;
  vertical-align: 1px; line-height: 1.4;
}

/* ---------- report builder stepper (interactive) ---------- */
.stepper { margin-top: 30px; border: 1px solid var(--border-2); border-radius: var(--r-lg); background: var(--bg-2); overflow: hidden; }
.stepper-nav { display: flex; gap: 4px; padding: 8px; border-bottom: 1px solid var(--border); background: var(--bg-1); overflow-x: auto; }
.stepper-nav button {
  flex: 1 1 0; min-width: max-content; display: flex; align-items: center; gap: 9px;
  padding: 11px 14px; border: 0; background: transparent; color: var(--text-2); font: inherit; font-size: 13.5px; font-weight: 500;
  border-radius: var(--r-sm); cursor: pointer; white-space: nowrap; transition: background 0.14s, color 0.14s;
}
.stepper-nav button:hover { color: var(--text-0); background: rgba(255,255,255,0.04); }
.stepper-nav button.on { color: var(--text-0); background: var(--bg-3); box-shadow: var(--shadow-md); }
.stepper-nav button .sn {
  width: 24px; height: 24px; flex-shrink: 0; border-radius: 7px; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--text-2);
  background: var(--bg-3); border: 1px solid var(--border-2); transition: background 0.14s, color 0.14s;
}
.stepper-nav button.on .sn { color: #fff; background: linear-gradient(180deg, var(--accent-2), var(--accent)); border-color: transparent; }
.stepper-body { padding: 26px 26px 28px; }
.stepper-panel { display: none; }
.stepper-panel.on { display: block; animation: sp-in 0.35s cubic-bezier(0.2,0.7,0.3,1); }
@keyframes sp-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .stepper-panel.on { animation: none; } }
.stepper-panel .eyebrow { margin-bottom: 12px; }
.stepper-panel h4 { font-size: 20px; font-weight: 600; letter-spacing: -0.015em; margin: 0; }
.stepper-panel p { font-size: 15px; color: var(--text-1); margin: 12px 0 0; line-height: 1.6; }
.stepper-panel .opts { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.stepper-panel .opt {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 13px; border-radius: var(--r-full);
  background: var(--bg-3); border: 1px solid var(--border-2); font-size: 13.5px; color: var(--text-1);
}
.stepper-panel .opt svg { width: 14px; height: 14px; color: var(--accent-2); }
.stepper-panel .opt.done { border-color: var(--accent-line); color: var(--accent-2); background: var(--accent-soft); }

/* ---------- storage toggle (interactive) ---------- */
.storage { margin-top: 30px; border: 1px solid var(--border-2); border-radius: var(--r-lg); background: var(--bg-2); padding: 26px; }
.storage-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.storage-head .lbl { font-size: 15px; font-weight: 600; }
.storage-head .lbl .sub { display: block; font-size: 13px; color: var(--text-2); font-weight: 400; margin-top: 3px; }
.seg-toggle { display: inline-flex; padding: 3px; gap: 3px; background: var(--bg-1); border: 1px solid var(--border-2); border-radius: var(--r-full); }
.seg-toggle button {
  display: inline-flex; align-items: center; gap: 7px; padding: 9px 16px; border: 0; background: transparent;
  color: var(--text-2); font: inherit; font-size: 13.5px; font-weight: 600; border-radius: var(--r-full); cursor: pointer; transition: color 0.14s, background 0.14s;
}
.seg-toggle button svg { width: 15px; height: 15px; }
.seg-toggle button.on { color: #fff; background: linear-gradient(180deg, var(--accent-2), var(--accent)); box-shadow: 0 6px 16px -6px var(--glow); }
.storage-explain { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--border); }
.storage-explain > div { display: none; }
.storage-explain > div.on { display: flex; gap: 13px; animation: sp-in 0.3s ease; }
.storage-explain .ic { width: 40px; height: 40px; flex-shrink: 0; border-radius: var(--r-sm); display: grid; place-items: center; color: var(--accent-2); background: var(--accent-soft); border: 1px solid var(--accent-line); }
.storage-explain .ic svg { width: 20px; height: 20px; }
.storage-explain h4 { font-size: 15.5px; font-weight: 600; margin: 0; }
.storage-explain p { font-size: 14px; color: var(--text-2); margin: 6px 0 0; line-height: 1.55; }

/* ---------- two-col mini cards (settings / export etc) ---------- */
.g-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 26px; }
.g-card { padding: 22px; border-radius: var(--r-md); background: var(--bg-2); border: 1px solid var(--border); transition: border-color 0.15s, background 0.15s; }
.g-card:hover { border-color: var(--border-3); background: var(--bg-3); }
.g-card .ic { width: 38px; height: 38px; border-radius: var(--r-sm); display: grid; place-items: center; color: var(--accent-2); background: var(--accent-soft); border: 1px solid var(--accent-line); }
.g-card .ic svg { width: 19px; height: 19px; }
.g-card h4 { font-size: 15.5px; font-weight: 600; margin: 16px 0 0; }
.g-card p { font-size: 13.5px; color: var(--text-2); margin: 7px 0 0; line-height: 1.55; }

/* ---------- format pills (export) ---------- */
.fmt-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.fmt {
  display: flex; align-items: center; gap: 12px; padding: 14px 18px 14px 14px; border-radius: var(--r-md);
  background: var(--bg-2); border: 1px solid var(--border-2); min-width: 210px; flex: 1;
}
.fmt .tag { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.04em; padding: 5px 9px; border-radius: 7px; color: var(--accent-2); background: var(--accent-soft); border: 1px solid var(--accent-line); }
.fmt .tag.doc { color: var(--purple); background: var(--purple-soft); border-color: rgba(167,139,250,0.3); }
.fmt .tag.md { color: var(--ok); background: rgba(54,211,153,0.12); border-color: rgba(54,211,153,0.3); }
.fmt .ft { font-size: 14.5px; font-weight: 600; }
.fmt .fd { font-size: 12.5px; color: var(--text-2); margin-top: 2px; }

/* ---------- FAQ (guide) — reuse landing .qa styles via same classes ---------- */
.g-faq { margin-top: 30px; }

/* ---------- final CTA within guide ---------- */
.g-cta { text-align: center; margin-top: 96px; padding: 52px 32px; border-radius: var(--r-xl); background: linear-gradient(180deg, var(--accent-soft), transparent 55%), var(--bg-1); border: 1px solid var(--border-2); position: relative; overflow: hidden; }
.g-cta .quote { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.04em; color: var(--accent-2); }
.g-cta h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 600; letter-spacing: -0.028em; line-height: 1.1; margin: 14px 0 0; text-wrap: balance; }
.g-cta p { font-size: 16px; color: var(--text-1); margin: 14px auto 0; max-width: 520px; }
.g-cta .g-cta-btns { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

/* ---------- back to top ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 44px; height: 44px;
  border-radius: 50%; display: grid; place-items: center; color: var(--text-0);
  background: rgba(16,18,24,0.86); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-2); box-shadow: var(--shadow-lg); cursor: pointer;
  opacity: 0; transform: translateY(12px) scale(0.9); pointer-events: none; transition: opacity 0.25s, transform 0.25s;
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { border-color: var(--border-3); color: var(--accent-2); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .g-layout { grid-template-columns: 1fr; gap: 0; padding-top: 8px; }
  .toc { position: static; margin-bottom: 8px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--bg-1); padding: 14px; }
  .toc ol { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
  .toc ol::before { display: none; }
  .toc a::before { display: none; }
  .g-sec + .g-sec { margin-top: 64px; padding-top: 64px; }
  .qs { grid-template-columns: 1fr; }
  .g-cards { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .toc ol { grid-template-columns: 1fr; }
  .g-sec-head { gap: 12px; }
  .g-sec-num { width: 36px; height: 36px; }
  .stepper-nav { flex-wrap: nowrap; }
  .g-cta .g-cta-btns .btn { width: 100%; }
}