/* ==========================================================================
   مرکز مشاوره آماری — استایل اختصاصی اجزاء
   توکن‌های پایه (--bg/--fg/--brand/…) از assets/style.css سایت اصلی می‌آیند.
   اینجا فقط توکن‌هایی می‌مانند که سایت اصلی آن‌ها را ندارد.
   رنگ نهادی سرمه‌ای/طلایی به emerald سایت اصلی نگاشت شده است.
   ========================================================================== */
:root {
  --navy-900: var(--fg);
  --navy-800: #1e293b;
  --navy-700: var(--brand);
  --navy-600: var(--brand-2);
  --gold: var(--brand);
  --gold-soft: rgba(16, 185, 129, .10);
  --bg-alt: var(--bg-soft);
  --brand-hover: #047857;
  --on-brand: #ffffff;
  --accent-soft: rgba(13, 148, 136, .10);
  --warn-soft: rgba(217, 119, 6, .10);
  --r-xs: 5px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --topbar-h: 0px;

  --code-bg: #f8fafc;
  --code-bar: #eef2f7;
  --code-fg: #1d2836;
  --tok-kw: #8a2f6b;
  --tok-str: #0f766e;
  --tok-fn: #1e3a5f;
  --tok-num: #9a5b0b;
  --tok-com: #7b8594;
  --tok-op: #55606f;
}
[data-theme="dark"] {
  --code-bg: #101a26;
  --code-bar: #182534;
  --code-fg: #dce5f0;
  --tok-kw: #d98cc0;
  --tok-str: #7fce9f;
  --tok-fn: #7fb2e8;
  --tok-num: #e3ab6a;
  --tok-com: #6f7d8f;
  --tok-op: #9fadbe;
}

/* ---------- پایه ---------- */
/* ---------- پایه ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Vazirmatn, "Segoe UI", Tahoma, system-ui, sans-serif;
  font-size: 15.5px;
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--navy-900);
}
[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4 { color: var(--fg); }

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-hover); }
button { font: inherit; color: inherit; cursor: pointer; }
img, svg { max-width: 100%; height: auto; display: block; }
code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

::selection { background: rgba(16, 185, 129, .18); }

::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--surface-2); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--r-full);
  border: 3px solid var(--surface-2);
}
::-webkit-scrollbar-thumb:hover { background: var(--fg-dim); }

}

  position: absolute;
  inset-inline-start: -9999px;
  top: 0;
  z-index: 300;
  padding: 11px 18px;
  background: var(--navy-800);
  color: #fff;
  border-radius: 0 0 var(--r-sm) 0;
}

/* ---------- دکمه‌ها ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
  transition: background .18s, border-color .18s, color .18s, box-shadow .18s;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; stroke: currentColor; flex: 0 0 auto; }
.btn:active { box-shadow: inset 0 1px 3px rgba(0, 0, 0, .18); }

.btn--primary {
  background: var(--navy-700);
  border-color: var(--navy-700);
  color: #fff;
}
.btn--primary:hover { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }

.btn--outline {
  background: var(--surface);
  border-color: var(--navy-700);
  color: var(--navy-700);
}
.btn--outline:hover { background: var(--navy-700); color: #fff; }

.btn--ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--fg-muted);
}
.btn--ghost:hover { background: var(--surface-2); border-color: var(--border-strong); color: var(--fg); }

.btn--gold { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn--gold:hover { background: var(--brand-hover); border-color: var(--brand-hover); color: #fff; }

.btn--sm { padding: 8px 15px; font-size: 13px; }
.btn--lg { padding: 13px 28px; font-size: 15.5px; }
.btn--block { width: 100%; }

/* ---------- بخش‌ها ---------- */
.section { padding-block: clamp(44px, 6vw, 72px); }
.section--alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section__head { max-width: 720px; margin-bottom: 32px; }
.section__head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-block;
  padding-inline-end: 11px;
  margin-bottom: 12px;
  border-inline-end: 3px solid var(--gold);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .3px;
  color: var(--gold);
  text-transform: none;
}
.section__head--center .eyebrow {
  border: 0;
  padding: 5px 14px;
  background: var(--gold-soft);
  border-radius: var(--r-xs);
}

h2 { font-size: clamp(22px, 3vw, 30px); }
h3 { font-size: clamp(17px, 2vw, 21px); }

.lead {
  margin: 12px 0 0;
  font-size: 15.5px;
  color: var(--fg-muted);
  line-height: 1.95;
}

/* ---------- بخش معرفی (به‌جای هیرو) ---------- */
.intro {
  background:
    linear-gradient(rgba(22, 48, 79, .94), rgba(16, 35, 61, .96)),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, .022) 0 2px, transparent 2px 9px);
  background-color: var(--navy-800);
  color: #e6ecf4;
  padding-block: clamp(38px, 6vw, 62px);
  border-bottom: 3px solid var(--gold);
}
.intro h1, .intro h2, .intro h3 { color: #fff; }

.intro__grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}
.intro h1 { font-size: clamp(24px, 3.6vw, 36px); line-height: 1.5; }
.intro .lead { color: #c3cfdd; font-size: 15.5px; }
.intro__actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 26px; }
.intro .btn--primary { background: var(--gold); border-color: var(--gold); }
.intro .btn--primary:hover { background: #a07d38; border-color: #a07d38; }
.intro .btn--outline { border-color: rgba(255, 255, 255, .45); color: #fff; background: transparent; }
.intro .btn--outline:hover { background: #fff; color: var(--navy-800); border-color: #fff; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r);
  overflow: hidden;
}
.stats > div {
  background: rgba(16, 35, 61, .6);
  padding: 18px 20px;
}
.stats b {
  display: block;
  font-size: 27px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}
.stats span { font-size: 12.5px; color: #a9b8ca; }

/* کارت ساختار درخت (رسمی، بدون انیمیشن) */

/* ---------- کارت‌ها ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 16px;
}

.card {
  padding: 22px;
  border: 1px solid var(--border);
  border-top: 3px solid var(--navy-700);
  border-radius: var(--r);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow); border-top-color: var(--gold); }

.card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.card__icon svg { width: 20px; height: 20px; stroke: var(--navy-700); }

.card h3 { font-size: 16px; margin-bottom: 8px; }
.card p { margin: 0; font-size: 14px; color: var(--fg-muted); line-height: 1.9; }

/* ---------- ویزارد ---------- */
.wizard {
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.wizard__bar { height: 5px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.wizard__fill {
  height: 100%;
  width: 0;
  background: var(--navy-700);
  transition: width .35s var(--ease);
}
.wizard__body { padding: clamp(20px, 3.4vw, 32px); }

.wizard__crumbs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 22px; }
.wizard__crumbs:empty { display: none; }
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  font-size: 12.5px;
  color: var(--fg-muted);
  transition: border-color .18s, color .18s, background .18s;
}
.crumb:hover { border-color: var(--navy-700); color: var(--navy-700); background: var(--surface); }
.crumb b {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy-700);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
}

.wizard__step {
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .3px;
  margin-bottom: 8px;
}
.wizard__q { font-size: clamp(18px, 2.3vw, 23px); margin-bottom: 10px; }
.wizard__help {
  padding: 14px 16px;
  margin-bottom: 22px;
  border-inline-start: 3px solid var(--navy-700);
  border-radius: 0 var(--r-xs) var(--r-xs) 0;
  background: var(--surface-2);
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.9;
}

.opts { display: grid; gap: 9px; }
.opt {
  display: flex;
  align-items: center;
  gap: 13px;
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  text-align: start;
  font-size: 15px;
  font-weight: 600;
  transition: border-color .18s, background .18s, box-shadow .18s;
}
.opt:hover {
  border-color: var(--navy-700);
  background: var(--surface-2);
  box-shadow: var(--shadow-sm);
}
.opt__num {
  flex: 0 0 auto;
  width: 27px;
  height: 27px;
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-700);
}
.opt:hover .opt__num { background: var(--navy-700); border-color: var(--navy-700); color: #fff; }
.opt__arrow { margin-inline-start: auto; color: var(--fg-dim); }
.opt:hover .opt__arrow { color: var(--navy-700); }
.opt__arrow svg { width: 17px; height: 17px; stroke: currentColor; }

.wizard__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

/* ---------- نتیجه ---------- */
.result__head { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-bottom: 10px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  font-size: 12px;
  font-weight: 700;
  color: var(--fg-muted);
  white-space: nowrap;
}
.pill--path { background: var(--navy-700); border-color: var(--navy-700); color: #fff; }
.pill--kind { background: var(--gold-soft); border-color: rgba(140, 109, 47, .35); color: var(--gold); }
.pill--ref { background: var(--accent-soft); border-color: rgba(31, 111, 79, .3); color: var(--accent); }
.pill--added {
  background: var(--surface-2);
  border-color: var(--border-strong);
  color: var(--fg-muted);
}

.result__title { font-size: clamp(18px, 2.3vw, 24px); margin-bottom: 8px; }
.result__dv { color: var(--fg-muted); font-size: 14.5px; margin: 0 0 20px; }

.result__note {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 22px;
  border: 1px solid var(--border);
  border-inline-start: 3px solid var(--gold);
  border-radius: var(--r-sm);
  background: var(--gold-soft);
  font-size: 13.5px;
  color: var(--fg-muted);
  line-height: 1.9;
}
.result__note svg { flex: 0 0 auto; width: 19px; height: 19px; stroke: var(--gold); margin-top: 3px; }

.block { margin-bottom: 28px; }
.block__title {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-bottom: 9px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--border);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--navy-800);
}
[data-theme="dark"] .block__title { color: var(--fg); }
.block__title svg { width: 18px; height: 18px; stroke: var(--navy-700); }
.block__title .count {
  margin-inline-start: auto;
  padding: 2px 10px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--surface-2);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--fg-dim);
}

/* کارت روش */
.method {
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  overflow: hidden;
  margin-bottom: 10px;
}
.method--primary { border-inline-start: 4px solid var(--navy-700); }
.method--extra { border-inline-start: 4px solid var(--border-strong); }

.method__head {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  width: 100%;
  padding: 15px 17px;
  background: none;
  border: 0;
  text-align: start;
  transition: background .18s;
}
.method__head:hover { background: var(--surface-2); }
.method__title { flex: 1; min-width: 0; }
.method__name { font-size: 15.5px; font-weight: 700; color: var(--navy-900); }
[data-theme="dark"] .method__name { color: var(--fg); }
.method__en {
  font-size: 12px;
  color: var(--fg-dim);
  font-family: ui-monospace, monospace;
  direction: ltr;
  text-align: start;
}
.method__desc { margin: 7px 0 0; font-size: 13.5px; color: var(--fg-muted); line-height: 1.85; }
.method__chev { flex: 0 0 auto; margin-top: 3px; color: var(--fg-dim); transition: transform .25s var(--ease); }
.method__chev svg { width: 17px; height: 17px; stroke: currentColor; }
.method[aria-expanded="true"] .method__chev { transform: rotate(-180deg); }
.method[aria-expanded="true"] .method__head { border-bottom: 1px solid var(--border); }
.method__body { display: none; padding: 17px; background: var(--surface-2); }
.method[aria-expanded="true"] .method__body { display: block; }

.node__meta { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 14px; }

/* برگه‌های نرم‌افزار */
.ctabs { display: flex; gap: 5px; margin-bottom: 10px; }
.ctab {
  padding: 6px 15px;
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  background: var(--surface-2);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--fg-dim);
  transition: background .18s, color .18s;
}
.ctab:hover { color: var(--fg); }
.ctab[aria-selected="true"] { background: var(--surface); color: var(--navy-800); border-color: var(--navy-700); }
[data-theme="dark"] .ctab[aria-selected="true"] { color: var(--fg); }

.codebox { margin-top: 4px; }

.code {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 0 var(--r) var(--r) var(--r);
  background: var(--code-bg);
  overflow: hidden;
}

.code__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  background: var(--code-bar);
  border-bottom: 1px solid var(--border);
}
.code__lang {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--navy-700);
  padding: 2px 9px;
  border-radius: var(--r-full);
  background: var(--surface);
  border: 1px solid var(--border);
}
[data-theme="dark"] .code__lang { color: var(--brand); }
.code__hint {
  font-size: 12px;
  color: var(--fg-dim);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code__copy {
  flex: 0 0 auto;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: var(--surface);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--fg-muted);
  transition: color .18s, border-color .18s, background .18s;
}
.code__copy:hover {
  color: var(--navy-700);
  border-color: var(--navy-700);
  background: var(--surface-2);
}
[data-theme="dark"] .code__copy:hover { color: var(--brand); border-color: var(--brand); }

.code__pre {
  margin: 0;
  padding: 13px 16px;
  direction: ltr;
  text-align: left;
  overflow-x: auto;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 12.8px;
  line-height: 1.95;
  color: var(--code-fg);
  tab-size: 2;
}
.code__pre code { font: inherit; color: inherit; }
.code__line { display: block; white-space: pre-wrap; word-break: break-word; }
.code[data-lang="SPSS"] .code__pre { direction: rtl; text-align: start; font-family: inherit; font-size: 13.5px; }

.tok--kw  { color: var(--tok-kw); font-weight: 600; }
.tok--str { color: var(--tok-str); }
.tok--fn  { color: var(--tok-fn); font-weight: 600; }
.tok--num { color: var(--tok-num); }
.tok--com { color: var(--tok-com); font-style: italic; }
.tok--op  { color: var(--tok-op); }

/* پیش‌فرض */
.assum {
  padding: 15px 17px;
  border: 1px solid var(--border);
  border-inline-start: 3px solid var(--gold);
  border-radius: var(--r-sm);
  background: var(--surface);
  margin-bottom: 9px;
}
.assum__name { font-size: 14.5px; font-weight: 700; margin-bottom: 9px; color: var(--navy-900); }
[data-theme="dark"] .assum__name { color: var(--fg); }
.assum__row { display: flex; gap: 9px; font-size: 13px; line-height: 1.85; margin-bottom: 5px; }
.assum__row:last-child { margin-bottom: 0; }
.assum__label {
  flex: 0 0 92px;
  padding: 1px 0;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--fg-dim);
  margin-top: 2px;
}
.assum__row--check .assum__label { color: var(--navy-700); }
.assum__row--fix .assum__label { color: var(--accent); }
[data-theme="dark"] .assum__row--check .assum__label { color: var(--brand); }
.assum__text { color: var(--fg-muted); flex: 1; }

/* مسیر پیموده‌شده */
.trail { display: grid; gap: 8px; }
.trail__item {
  display: flex;
  gap: 13px;
  padding: 12px 15px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
}
.trail__n {
  flex: 0 0 auto;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy-700);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
}
.trail__q { font-size: 13px; color: var(--fg-dim); display: block; }
.trail__a { font-size: 14px; font-weight: 700; margin-top: 2px; display: block; }

/* ---------- درخت کامل ---------- */
.tree-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  margin-bottom: 18px;
}
.search { position: relative; flex: 1 1 240px; max-width: 400px; }
.search svg {
  position: absolute;
  inset-inline-start: 13px;
  inset-block-start: 50%;
  transform: translateY(-50%);
  width: 17px;
  height: 17px;
  stroke: var(--fg-dim);
  pointer-events: none;
}
.search input {
  width: 100%;
  padding: 10px 42px 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  transition: border-color .18s, box-shadow .18s;
}
.search input::placeholder { color: var(--fg-dim); }
.search input:focus {
  outline: none;
  border-color: var(--navy-700);
  box-shadow: 0 0 0 3px rgba(36, 80, 127, .15);
}

.tree { display: grid; gap: 9px; }
.node {
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  overflow: hidden;
}
.node[hidden] { display: none; }
.node__head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 17px;
  background: none;
  border: 0;
  border-inline-start: 3px solid var(--navy-700);
  text-align: start;
  font-size: 14.5px;
  font-weight: 700;
  transition: background .18s;
}
.node__head:hover { background: var(--surface-2); }
.node[aria-expanded="true"] .node__head { background: var(--surface-2); border-bottom: 1px solid var(--border); }
.node__chev { flex: 0 0 auto; color: var(--fg-dim); transition: transform .25s var(--ease); }
.node__chev svg { width: 17px; height: 17px; stroke: currentColor; }
.node[aria-expanded="true"] .node__chev { transform: rotate(-180deg); }
.node__body { display: none; padding: 17px; }
.node[aria-expanded="true"] .node__body { display: block; }

.table-scroll { overflow-x: auto; margin-inline: -17px; padding-inline: 17px; }
.row-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.row-table th, .row-table td {
  padding: 11px 13px;
  text-align: start;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
  line-height: 1.85;
}
.row-table th {
  font-size: 12px;
  font-weight: 700;
  color: var(--fg-dim);
  background: var(--surface-2);
  border-bottom: 2px solid var(--border-strong);
  white-space: nowrap;
}
.row-table tbody tr:hover { background: var(--surface-2); }
.row-table td:first-child { font-weight: 700; white-space: nowrap; color: var(--navy-800); }
[data-theme="dark"] .row-table td:first-child { color: var(--fg); }
.row-table .m-ref { color: var(--fg); }
.row-table .m-add { color: var(--fg-dim); font-style: italic; }

/* ---------- واژه‌نامه و پیش‌فرض‌ها ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 13px; }
.term {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-inline-start: 3px solid var(--navy-700);
  border-radius: var(--r-sm);
  background: var(--surface);
  transition: box-shadow .2s, border-color .2s;
}
.term:hover { box-shadow: var(--shadow-sm); border-inline-start-color: var(--gold); }
.term__name { font-size: 15px; font-weight: 700; margin-bottom: 7px; color: var(--navy-800); }
[data-theme="dark"] .term__name { color: var(--fg); }
.term__def { font-size: 13.5px; color: var(--fg-muted); line-height: 1.9; margin: 0; }

/* ---------- ربات تلگرام ---------- */

/* ---------- ربات‌ها: بله + تلگرام کنار هم ---------- */
.bot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}
.bot-card {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  border-inline-start: 3px solid var(--navy-700);
}
.bot-card--bale { border-inline-start-color: #17a673; }
.bot-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.bot-card__icon {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  background: var(--navy-800);
  color: #fff;
}
.bot-card--bale .bot-card__icon { background: #17a673; }
.bot-card__icon svg { width: 20px; height: 20px; stroke: currentColor; }
.bot-card__head h3 { font-size: 16.5px; margin: 0; }
.bot-card__tag {
  font-size: 11.5px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: .04em;
  direction: ltr;
  display: inline-block;
}

@media (max-width: 720px) {
  .bot-grid { grid-template-columns: 1fr; }
}

.steps { display: grid; gap: 14px; margin: 22px 0 0; padding: 0; list-style: none; counter-reset: s; }
.steps li { display: flex; gap: 14px; counter-increment: s; }
.steps li::before {
  content: counter(s);
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  background: var(--navy-700);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
.steps b { display: block; font-size: 14.5px; }
.steps span { font-size: 13.5px; color: var(--fg-muted); line-height: 1.85; }
.steps code {
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: var(--surface-2);
  font-size: 12.5px;
  direction: ltr;
  display: inline-block;
}

/* ---------- اطلاعیه ---------- */
.notice {
  display: flex;
  gap: 14px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-inline-start: 4px solid var(--gold);
  border-radius: var(--r-sm);
  background: var(--gold-soft);
}
.notice svg { flex: 0 0 auto; width: 22px; height: 22px; stroke: var(--gold); margin-top: 3px; }
.notice h3 { font-size: 15.5px; margin-bottom: 7px; color: var(--navy-900); }
[data-theme="dark"] .notice h3 { color: var(--fg); }
.notice p { margin: 0; font-size: 14px; color: var(--fg-muted); line-height: 1.9; }

/* ---------- کمکی‌ها ---------- */
[hidden] { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

.toast {
  position: fixed;
  inset-block-end: 22px;
  inset-inline-start: 50%;
  transform: translate(50%, 150%);
  z-index: 400;
  padding: 11px 22px;
  border: 1px solid var(--navy-700);
  border-radius: var(--r-sm);
  background: var(--navy-800);
  color: #fff;
  box-shadow: var(--shadow-lg);
  font-size: 13.5px;
  font-weight: 600;
  transition: transform .3s var(--ease);
}
.toast.show { transform: translate(50%, 0); }

/* ---------- واکنش‌گرا ---------- */
@media (max-width: 980px) {
  .intro__grid { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .opt { padding: 13px 15px; font-size: 14.5px; }
  .btn { padding: 10px 18px; }
}
@media (max-width: 520px) {
  .assum__row { flex-direction: column; gap: 2px; }
  .assum__label { flex: 0 0 auto; }
}
@media print {
  .nav, .footer, .wizard__nav, .tree-tools, .intro__visual { display: none; }
  body { background: #fff; color: #000; }
  .method__body, .node__body { display: block !important; }
  .card, .node, .method, .term, .assum { break-inside: avoid; }
}

/* ---------- سربرگ صفحات داخلی ---------- */
.pagehead {
  background:
    linear-gradient(180deg, var(--navy-800) 0%, var(--navy-900) 100%);
  color: #fff;
  padding-block: clamp(32px, 5vw, 54px);
}
.pagehead h1 {
  color: #fff;
  font-size: clamp(22px, 3.2vw, 31px);
  margin-bottom: 10px;
}
.pagehead .lead { color: #c5d2e1; max-width: 760px; margin: 0; }
.pagehead .eyebrow { color: var(--gold); }
.pagehead .eyebrow::before { background: var(--gold); }
.pagehead__links {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}
.pagehead__links a {
  padding: 7px 15px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: var(--r-full);
  font-size: 13.5px;
  font-weight: 600;
  color: #dbe5f0;
  transition: background .18s, color .18s, border-color .18s;
}
.pagehead__links a:hover {
  background: #fff;
  color: var(--navy-800);
  border-color: #fff;
}

/* ---------- نمودار ساختار درخت ---------- */
.flow {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.flow__scroll {
  overflow-x: auto;
  padding: 18px 14px;
  -webkit-overflow-scrolling: touch;
}
.flow__canvas { min-width: max-content; margin-inline: auto; }
.flow__svg { display: block; max-width: none; height: auto; }

.flow__link {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 1.6;
}
.flow__edge {
  font-family: Vazirmatn, system-ui, sans-serif;
  font-size: 10.5px;
  fill: var(--fg-dim);
}
.flow__node rect {
  fill: var(--surface-2);
  stroke: var(--border-strong);
  stroke-width: 1.3;
  transition: fill .18s var(--ease), stroke .18s var(--ease);
}
.flow__node text {
  font-family: Vazirmatn, system-ui, sans-serif;
  fill: var(--fg);
}
.flow__q { font-size: 11.5px; font-weight: 600; }

.flow__node--profile { cursor: pointer; }
.flow__node--profile rect {
  fill: var(--navy-700);
  stroke: var(--navy-800);
}
[data-theme="dark"] .flow__node--profile rect { fill: var(--navy-600); stroke: var(--brand); }
.flow__node--profile text { fill: #fff; }
.flow__path { font-size: 11px; font-weight: 800; fill: var(--gold-soft) !important; }
.flow__title { font-size: 10px; opacity: .92; }
.flow__node--profile:hover rect { fill: var(--navy-600); stroke: var(--gold); }
.flow__node--profile:focus-visible rect { stroke: var(--gold); stroke-width: 2.4; }
.flow__node--profile:focus { outline: none; }

.flow__legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 12.5px;
  color: var(--fg-muted);
}
.flow__key { display: inline-flex; align-items: center; gap: 7px; }
.flow__key::before {
  content: "";
  width: 13px;
  height: 13px;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
}
.flow__key--p::before { background: var(--navy-700); border-color: var(--navy-800); }
.flow__key--note { color: var(--fg-dim); }
.flow__key--note::before { display: none; }

/* ---------- یادداشت زیر دکمهٔ ربات ---------- */
.bot-card__note { font-size: 13.5px; margin-bottom: 0; }

/* ---------- صیقل مدرن ---------- */
.card, .wizard, .method, .node, .assum, .term, .bot-card, .notice {
  border-radius: var(--r);
}
.card { transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease); }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.wizard { box-shadow: var(--shadow); }
.section__head h2 { letter-spacing: -.01em; }

/* ---------- نوار ناوبری داخلی مرکز مشاوره ----------
   زیر هدر اصلی سایت؛ بخش‌های داخلی این تب را در دسترس نگه می‌دارد. */
.subnav {
  position: sticky;
  top: var(--nav-h);
  z-index: 90;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.subnav__inner {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-block: 6px;
}
.subnav__inner::-webkit-scrollbar { display: none; }
.subnav__link {
  flex: none;
  padding: 8px 14px;
  border-radius: var(--r-full);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--fg-muted);
  white-space: nowrap;
  transition: background .16s, color .16s;
}
.subnav__link:hover { background: var(--surface-2); color: var(--fg); }
.subnav__link.is-active {
  background: var(--grad-soft);
  color: var(--brand);
  font-weight: 800;
}
[data-theme="dark"] .subnav {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}