/* ==========================================================
   File Reducer – main stylesheet
   Light theme · Poppins · 1140px content width
   ========================================================== */

@font-face { font-family: "Poppins"; src: url("../fonts/poppins-regular.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Poppins"; src: url("../fonts/poppins-medium.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Poppins"; src: url("../fonts/poppins-bold.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --ink: #0d1424;
  --text: #3b4659;
  --muted: #677487;
  --line: #e2e8f1;
  --line-strong: #cfd8e5;
  --primary: #1d5bff;
  --primary-dark: #1645c4;
  --primary-soft: #e8efff;
  --teal: #0b9a8d;
  --teal-soft: #e3f6f3;
  --accent: #f26b3a;
  --accent-soft: #fdeee7;
  --warn: #a15c07;
  --warn-soft: #fff6e6;
  --danger: #b42318;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;
  --shadow-s: 0 1px 2px rgba(13, 20, 36, .06), 0 2px 8px rgba(13, 20, 36, .04);
  --shadow-m: 0 10px 30px -12px rgba(13, 20, 36, .18);
  --shadow-l: 0 24px 60px -24px rgba(29, 91, 255, .28);
  --header-h: 72px;
  --container: 1140px;
  --font: "Poppins", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); overflow-x: hidden; }
img, svg, video { max-width: 100%; display: block; }
img { height: auto; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4 { font-family: var(--font); color: var(--ink); line-height: 1.25; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3.05rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 1.25rem + 1.3vw, 2.25rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
button, input, select, textarea { font-family: var(--font); font-size: 1rem; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.skip-link { position: absolute; left: 12px; top: -60px; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: var(--radius-s); z-index: 100; }
.skip-link:focus { top: 12px; color: #fff; }
[hidden] { display: none !important; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.section { padding: 88px 0; }
.section + .section { border-top: 1px solid var(--line); }

/* one consistent heading + description alignment for every section */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-head h2, .section-head h1 { margin-bottom: 14px; }
.section-head p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--primary); margin-bottom: 10px; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 999px; font-weight: 500; font-size: .98rem; border: 1.5px solid transparent; cursor: pointer; transition: background-color .2s, color .2s, border-color .2s, box-shadow .2s, transform .2s; white-space: nowrap; text-decoration: none; }
.btn svg { flex: none; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px -8px rgba(29, 91, 255, .6); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-outline { background: var(--surface); color: var(--primary); border-color: #c4d4ff; }
.btn-outline:hover { background: var(--primary-soft); color: var(--primary-dark); }
.btn-small { min-height: 38px; padding: 0 14px; font-size: .88rem; }
.btn-block { width: 100%; margin-top: 14px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- header ---------- */
#site-header { display: block; min-height: var(--header-h); }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--line); transition: box-shadow .25s; }
#site-header { position: sticky; top: 0; z-index: 50; }
.site-header.is-scrolled { box-shadow: 0 6px 24px -14px rgba(13, 20, 36, .25); }
.header-inner { height: var(--header-h); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 1.15rem; letter-spacing: -.01em; justify-self: start; }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
.brand:hover { color: var(--ink); }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; justify-content: center; gap: 6px; }
.main-nav a { display: block; padding: 8px 14px; border-radius: 999px; color: var(--text); font-weight: 500; font-size: .95rem; transition: background-color .2s, color .2s; }
.main-nav a:hover { color: var(--ink); background: #eef2f8; }
.main-nav a.is-active, .main-nav a[aria-current="page"] { color: var(--primary); background: var(--primary-soft); }
.header-cta { justify-self: end; display: flex; align-items: center; gap: 10px; }
.header-cta .btn { min-height: 44px; }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); align-items: center; justify-content: center; cursor: pointer; }
.menu-toggle .icon-close { display: none; }
.menu-open .menu-toggle .icon-open { display: none; }
.menu-open .menu-toggle .icon-close { display: block; }

/* ---------- hero ---------- */
.hero { padding: 48px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 0.86fr 1.14fr; gap: 48px; align-items: start; }
.hero-copy { padding-top: 28px; }
.hero-badge { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 6px 14px 6px 8px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: .85rem; font-weight: 500; color: var(--ink); margin-bottom: 20px; }
.hero-badge span { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--teal-soft); color: var(--teal); }
.hero h1 { margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero-lead { font-size: 1.08rem; margin-bottom: 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 30px; }
.hero-trust { list-style: none; margin: 0; padding: 22px 0 0; border-top: 1px dashed var(--line-strong); display: grid; gap: 12px; }
.hero-trust li { display: flex; align-items: center; gap: 12px; font-size: .93rem; color: var(--ink); }
.hero-trust svg { color: var(--teal); flex: none; }

/* ---------- tool ---------- */
.tool { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); box-shadow: var(--shadow-l); padding: 10px; scroll-margin-top: calc(var(--header-h) + 16px); }
.tool-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 4px; background: #f1f4f9; border-radius: 16px; }
.tool-tabs button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; border: 0; border-radius: 12px; background: transparent; color: var(--muted); font-weight: 500; cursor: pointer; transition: background-color .2s, color .2s, box-shadow .2s; }
.tool-tabs button:hover { color: var(--ink); }
.tool-tabs button[aria-selected="true"] { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-s); }
.tool-panel { padding: 18px 12px 12px; }
.drop { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 6px; padding: 26px 18px; border: 2px dashed #c6d3ea; border-radius: var(--radius-m); background: #fafcff; cursor: pointer; transition: border-color .2s, background-color .2s; }
.drop:hover, .drop.is-over { border-color: var(--primary); background: var(--primary-soft); }
.drop:focus-within { outline: 3px solid var(--primary); outline-offset: 2px; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.drop-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--surface); color: var(--primary); box-shadow: var(--shadow-s); margin-bottom: 4px; }
.drop strong { color: var(--ink); font-weight: 500; }
.drop strong u { color: var(--primary); text-decoration: none; border-bottom: 1.5px solid currentColor; }
.drop small { color: var(--muted); font-size: .82rem; }
.chosen-list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 6px; max-height: 168px; overflow-y: auto; }
.chosen { display: flex; align-items: center; gap: 10px; padding: 7px 8px 7px 12px; background: #f5f7fb; border-radius: 10px; font-size: .88rem; }
.chosen-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink); }
.chosen-size { color: var(--muted); font-size: .8rem; }
.chosen-remove { flex: none; width: 30px; height: 30px; border: 0; background: transparent; color: var(--muted); border-radius: 8px; display: grid; place-items: center; cursor: pointer; }
.chosen-remove:hover { background: #e7ecf4; color: var(--danger); }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; margin-top: 16px; }
.opt { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.opt-full { grid-column: 1 / -1; }
.opt > label, .opt-label { font-size: .84rem; font-weight: 500; color: var(--ink); display: flex; justify-content: space-between; gap: 8px; }
.opt output { color: var(--primary); font-weight: 700; }
.opt select, .opt input[type="number"] { width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); color: var(--ink); }
.opt select:focus, .opt input[type="number"]:focus { border-color: var(--primary); outline: 3px solid rgba(29, 91, 255, .2); outline-offset: 0; }
.opt input[type="range"] { width: 100%; accent-color: var(--primary); min-height: 44px; }
.opt-hint { font-size: .78rem; color: var(--muted); margin: 0; }
.segmented { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-strong); border-radius: 10px; overflow: hidden; }
.segmented label { position: relative; text-align: center; padding: 10px 6px; font-size: .86rem; font-weight: 500; cursor: pointer; color: var(--muted); }
.segmented input { position: absolute; opacity: 0; }
.segmented input:checked + span { color: var(--primary); }
.segmented label:has(input:checked) { background: var(--primary-soft); }
.segmented label:focus-within { outline: 3px solid var(--primary); outline-offset: -3px; }
.opt > label.check { justify-content: flex-start; font-weight: 400; }
.check { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--ink); cursor: pointer; min-height: 44px; }
.check input { width: 18px; height: 18px; accent-color: var(--primary); }
.tool-actions { display: flex; gap: 10px; margin-top: 18px; }
.tool-actions .btn-primary { flex: 1; }
.tool-error { margin: 14px 0 0; padding: 10px 14px; border-radius: 10px; background: #fff1f0; color: var(--danger); font-size: .88rem; border: 1px solid #fecdca; }
.tool-error[hidden] { display: none; }
.tool-note { margin: 12px 0 0; font-size: .82rem; color: var(--muted); }
.support-msg { margin: 12px 0 0; padding: 10px 14px; border-radius: 10px; background: var(--warn-soft); color: var(--warn); font-size: .86rem; }
.results { margin-top: 16px; display: grid; gap: 10px; }
.results:empty { display: none; }
.status { margin: 0; font-size: .88rem; color: var(--ink); font-weight: 500; }
.result { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.result.is-warn { border-color: #f6d9a8; background: #fffbf3; }
.result-thumb img { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; background: #eef2f8; }
.result-info { flex: 1; min-width: 0; }
.result-name { margin: 0; font-size: .9rem; font-weight: 500; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-meta { margin: 0; font-size: .82rem; color: var(--text); }
.result-note { margin: 2px 0 0; font-size: .78rem; color: var(--warn); line-height: 1.5; }
.result-video { width: 100%; max-height: 260px; border-radius: 12px; background: #0d1424; }
.progress { margin-top: 16px; }
.progress[hidden] { display: none; }
.progress-track { height: 10px; border-radius: 999px; background: #edf1f7; overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--primary), var(--teal)); border-radius: inherit; transition: width .3s linear; }
.progress p { margin: 8px 0 0; font-size: .84rem; color: var(--ink); }
.format-chip { display: inline-block; padding: 1px 8px; border-radius: 6px; background: var(--teal-soft); color: var(--teal); font-weight: 700; font-size: .78rem; }

/* ---------- about (split, image + copy) ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-l); border: 1px solid var(--line); box-shadow: var(--shadow-m); }
.about-media figcaption { margin-top: 12px; font-size: .85rem; color: var(--muted); }
.about-copy h3 { font-size: 1.3rem; }
.about-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; border-top: 1px solid var(--line); }
.about-facts div { padding: 18px 12px 0 0; }
.about-facts div + div { padding-left: 18px; border-left: 1px solid var(--line); }
.about-facts strong { display: block; color: var(--ink); font-size: 1.05rem; }
.about-facts span { font-size: .86rem; color: var(--muted); }

/* ---------- features (icon list with dividers) ---------- */
.feature-list { display: grid; grid-template-columns: 1fr 1fr; column-gap: 64px; list-style: none; margin: 0; padding: 0; }
.feature-list li { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 26px 8px; border-bottom: 1px solid var(--line); border-radius: 12px; transition: background-color .25s; }
.feature-list li:hover { background: var(--surface); }
.feature-list li:hover .f-icon { transform: translateY(-3px); }
.f-icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); transition: transform .25s; }
.feature-list li:nth-child(3n+2) .f-icon { background: var(--teal-soft); color: var(--teal); }
.feature-list li:nth-child(3n) .f-icon { background: var(--accent-soft); color: var(--accent); }
.feature-list h3 { margin-bottom: 6px; }
.feature-list p { margin: 0; font-size: .95rem; }

/* ---------- how it works (timeline) ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; counter-reset: step; }
.steps::before { content: ""; position: absolute; top: 36px; left: 12.5%; right: 12.5%; height: 2px; background: repeating-linear-gradient(90deg, var(--line-strong) 0 10px, transparent 10px 18px); }
.steps li { text-align: center; position: relative; }
.step-icon { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 50%; background: var(--surface); border: 2px solid var(--primary); color: var(--primary); display: grid; place-items: center; position: relative; z-index: 1; box-shadow: 0 0 0 8px var(--bg); }
.step-tag { display: block; font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--teal); margin-bottom: 4px; }
.steps h3 { margin-bottom: 8px; }
.steps p { font-size: .94rem; margin: 0; }

/* ---------- formats (table) ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-m); border: 1px solid var(--line); background: var(--surface); }
.data-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: .95rem; }
.data-table th, .data-table td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table thead th { background: #f3f6fb; color: var(--ink); font-weight: 700; font-size: .85rem; letter-spacing: .04em; text-transform: uppercase; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover td { background: #fafcff; }
.data-table td:first-child { color: var(--ink); font-weight: 500; white-space: nowrap; }
.type-cell { display: flex; align-items: center; gap: 10px; }
.type-cell svg { color: var(--primary); }

/* ---------- use cases (cards) ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 28px 26px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.case:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: #c9d6f3; }
.case-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 12px; color: var(--teal); background: var(--teal-soft); margin-bottom: 18px; transition: transform .25s; }
.case:hover .case-icon { transform: rotate(-6deg); }
.case p { margin: 0; font-size: .94rem; }

/* ---------- benefits (columns with vertical rules) ---------- */
.benefit-row { display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; margin: 0; padding: 0; }
.benefit-row li { padding: 8px 26px 8px; border-left: 1px solid var(--line); transition: transform .25s; }
.benefit-row li:first-child { border-left: 0; padding-left: 0; }
.benefit-row li:hover { transform: translateY(-3px); }
.benefit-row li:hover .b-icon { color: var(--accent); }
.b-icon { color: var(--primary); margin-bottom: 16px; transition: color .25s; }
.benefit-row h3 { font-size: 1.08rem; }
.benefit-row p { margin: 0; font-size: .94rem; }

/* ---------- privacy (accent strip) ---------- */
.privacy-block { display: grid; grid-template-columns: auto 1fr; gap: 36px; align-items: start; max-width: 960px; margin: 0 auto; padding: 8px 0 8px 36px; border-left: 4px solid var(--teal); }
.privacy-shield { width: 88px; height: 88px; border-radius: 24px; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal); }
.privacy-block p { font-size: 1.02rem; }
.privacy-points { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 28px; }
.privacy-points li { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--ink); font-size: .93rem; }
.privacy-points svg { color: var(--teal); }

/* ---------- limits (two columns, split by rule) ---------- */
.limits { display: grid; grid-template-columns: 1fr 1fr; }
.limits > div { padding: 0 44px; }
.limits > div:first-child { padding-left: 0; border-right: 1px solid var(--line); }
.limits > div:last-child { padding-right: 0; }
.limits h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.limits ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.limits li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; font-size: .95rem; padding: 10px 12px; border-radius: 10px; transition: background-color .25s; }
.limits li:hover { background: var(--surface); }
.limits .ok svg { color: var(--teal); }
.limits .caution svg { color: var(--warn); }
.limits .label-ok { color: var(--teal); }
.limits .label-caution { color: var(--warn); }

/* ---------- troubleshooting (issue / fix rows) ---------- */
.fix-list { margin: 0; border-top: 1px solid var(--line); }
.fix-row { display: grid; grid-template-columns: 340px 1fr; gap: 40px; padding: 26px 4px; border-bottom: 1px solid var(--line); }
.fix-row dt { display: flex; gap: 14px; align-items: flex-start; color: var(--ink); font-weight: 500; font-size: 1.02rem; }
.fix-row dt svg { flex: none; color: var(--accent); margin-top: 2px; }
.fix-row dd { margin: 0; font-size: .95rem; }

/* ---------- guides preview / blog cards ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.post-card { display: flex; flex-direction: column; background: var(--surface); border-radius: var(--radius-m); overflow: hidden; border: 1px solid var(--line); transition: transform .25s, box-shadow .25s; }
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); }
.post-card .thumb { aspect-ratio: 16 / 9; overflow: hidden; background: #eef2f8; }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.post-card:hover .thumb img { transform: scale(1.03); }
.post-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.post-tag { font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); margin-bottom: 8px; }
.post-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { font-size: .92rem; margin-bottom: 16px; }
.read-more { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; font-weight: 500; font-size: .92rem; }
.read-more svg { transition: transform .2s; }
.post-card:hover .read-more svg { transform: translateX(4px); }
.center-cta { text-align: center; margin-top: 40px; }

/* ---------- FAQ ---------- */
.faq-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; align-items: start; }
.faq-cat { font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; color: var(--primary); display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; font-size: 1rem; font-weight: 500; }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; border: 0; background: none; text-align: left; color: var(--ink); font-weight: 500; font-size: 1rem; line-height: 1.5; cursor: pointer; }
.faq-q:hover { color: var(--primary); }
.faq-q .chev { flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: #edf1f7; color: var(--ink); transition: transform .25s, background-color .25s; }
.faq-q[aria-expanded="true"] .chev { transform: rotate(180deg); background: var(--primary); color: #fff; }
.faq-a { padding: 0 44px 18px 0; }
.faq-a[hidden] { display: none; }
.faq-a p { margin: 0; font-size: .95rem; }

/* ---------- page hero for inner pages ---------- */
.page-top { padding: 56px 0 8px; }
.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 18px; }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: var(--line-strong); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }

/* ---------- article ---------- */
.article-layout > * { min-width: 0; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 56px; align-items: start; padding: 24px 0 88px; }
.article-header h1 { font-size: clamp(1.85rem, 1.3rem + 2vw, 2.6rem); }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: .86rem; color: var(--muted); margin-bottom: 24px; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-figure { margin: 0 0 32px; }
.article-figure img { width: 100%; border-radius: var(--radius-l); border: 1px solid var(--line); }
.article-figure figcaption { font-size: .84rem; color: var(--muted); margin-top: 10px; }
.prose { font-size: 1.04rem; line-height: 1.8; color: var(--text); }
.prose h2 { margin: 1.8em 0 .6em; font-size: clamp(1.4rem, 1.2rem + .7vw, 1.75rem); scroll-margin-top: calc(var(--header-h) + 20px); }
.prose h3 { margin: 1.5em 0 .5em; font-size: 1.2rem; scroll-margin-top: calc(var(--header-h) + 20px); }
.prose ul { padding-left: 0; list-style: none; margin: 0 0 1.4em; }
.prose ul li { position: relative; padding-left: 28px; margin-bottom: 10px; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .7em; width: 9px; height: 9px; border-radius: 3px; background: var(--primary); transform: rotate(45deg); }
.prose strong { color: var(--ink); }
.prose .table-wrap { margin: 0 0 1.6em; }
.prose .data-table { min-width: 520px; font-size: .93rem; }
.prose .data-table th, .prose .data-table td { padding: 12px 16px; }
.prose .callout { margin: 0 0 1.6em; padding: 18px 22px; border-left: 4px solid var(--teal); background: var(--surface); border-radius: 0 12px 12px 0; }
.prose .callout p:last-child { margin: 0; }
.article-faq .faq-item:first-of-type { border-top: 1px solid var(--line); }
.sidebar { position: sticky; top: calc(var(--header-h) + 20px); max-height: calc(100vh - var(--header-h) - 40px); overflow-y: auto; overscroll-behavior: contain; padding-right: 6px; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 6px; }
.side-block { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--surface); margin-bottom: 18px; }
.side-block h2 { font-size: 1rem; margin-bottom: 12px; }
.side-try p { font-size: .9rem; margin-bottom: 14px; }
.side-try .btn { width: 100%; }
.toc ol, .side-links { list-style: none; margin: 0; padding: 0; }
.toc li a { display: block; padding: 6px 0 6px 12px; font-size: .88rem; color: var(--text); border-left: 2px solid var(--line); line-height: 1.45; }
.toc li a:hover, .toc li a.is-active { color: var(--primary); border-left-color: var(--primary); }
.side-links li + li { border-top: 1px solid var(--line); }
.side-links a { display: flex; gap: 12px; align-items: center; padding: 10px 0; color: var(--ink); font-size: .88rem; font-weight: 500; line-height: 1.45; }
.side-links a:hover { color: var(--primary); }
.side-links img { width: 64px; height: 40px; object-fit: cover; border-radius: 6px; flex: none; }
.related { padding: 0 0 88px; }
.related h2 { text-align: center; }

/* ---------- inner pages ---------- */
.page-content { padding: 16px 0 88px; }
.legal { max-width: 860px; margin: 0 auto; }
.legal h2 { font-size: 1.35rem; margin-top: 1.8em; }
.contact-card { max-width: 640px; margin: 0 auto; text-align: center; padding: 44px 32px; border: 1px solid var(--line); border-radius: var(--radius-l); background: var(--surface); }
.contact-card .mail-icon { width: 64px; height: 64px; margin: 0 auto 18px; display: grid; place-items: center; border-radius: 18px; background: var(--primary-soft); color: var(--primary); }
.contact-email { font-size: 1.3rem; font-weight: 700; color: var(--ink); margin: 10px 0 0; word-break: break-all; }
.about-page-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 56px; }
.about-page-grid img { border-radius: var(--radius-l); border: 1px solid var(--line); }

/* ---------- footer ---------- */
#site-footer { display: block; }
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 0; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { font-size: .93rem; margin: 16px 0 0; max-width: 360px; }
.footer-col h2 { font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink); margin-bottom: 16px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--text); font-size: .93rem; text-decoration: none; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { margin-top: 48px; padding: 22px 0 28px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; font-size: .86rem; color: var(--muted); }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: var(--ink); font-weight: 500; text-decoration: none; }
.footer-bottom a:hover { color: var(--primary); }
.site-footer a { text-decoration: none; }

/* ---------- scroll top ---------- */
.to-top { position: fixed; right: 20px; bottom: 20px; width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); color: var(--primary); box-shadow: var(--shadow-m); display: grid; place-items: center; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .25s, transform .25s, visibility .25s; z-index: 40; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--primary); color: #fff; }

/* ---------- reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 1100px) {
  .main-nav a { padding: 8px 10px; font-size: .9rem; }
  .fix-row { grid-template-columns: 280px 1fr; }
  .article-layout { grid-template-columns: minmax(0, 1fr) 280px; gap: 36px; }
}
@media (max-width: 1023px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .menu-toggle { display: inline-flex; }
  .main-nav { position: fixed; top: var(--header-h); left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-m); padding: 12px 20px 20px; transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s; max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
  .menu-open .main-nav { opacity: 1; visibility: visible; transform: none; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav a { padding: 12px 14px; font-size: 1rem; border-radius: 10px; }
  .main-nav .nav-cta-mobile { display: block; margin-top: 8px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .hero-copy { display: contents; }
  .hero-badge { order: 0; justify-self: start; }
  .hero h1 { order: 1; }
  .hero-lead { order: 2; }
  .hero .tool { order: 3; margin-bottom: 28px; }
  .hero-actions { order: 4; }
  .hero-trust { order: 5; }
  .about-grid, .about-page-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .steps::before { display: none; }
  .case-grid, .post-grid { grid-template-columns: 1fr 1fr; }
  .benefit-row { grid-template-columns: 1fr 1fr; row-gap: 32px; }
  .benefit-row li:nth-child(3) { border-left: 0; padding-left: 0; }
  .article-layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; max-height: none; overflow: visible; padding-right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) { .nav-cta-mobile { display: none; } }
@media (max-width: 767px) {
  :root { --header-h: 64px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 36px; }
  .hero { padding: 28px 0 56px; }
  .hero-lead { font-size: 1rem; margin-bottom: 20px; }
  .hero-badge { display: none; }
  .hero h1 { font-size: 1.85rem; margin-bottom: 12px; }
  .hero-actions { margin-bottom: 22px; }
  .header-cta .btn { display: none; }
  .feature-list { grid-template-columns: 1fr; }
  .limits { grid-template-columns: 1fr; gap: 36px; }
  .limits > div { padding: 0 !important; border: 0 !important; }
  .fix-row { grid-template-columns: 1fr; gap: 10px; }
  .privacy-block { grid-template-columns: 1fr; gap: 20px; padding-left: 22px; }
  .faq-cols { grid-template-columns: 1fr; gap: 36px; }
  .about-facts { grid-template-columns: 1fr; }
  .about-facts div + div { padding-left: 0; border-left: 0; }
  .about-facts div { padding: 14px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 600px) {
  .case-grid, .post-grid, .steps, .benefit-row { grid-template-columns: 1fr; }
  .benefit-row li { border-left: 0; padding-left: 0; padding-right: 0; }
  .opts { grid-template-columns: 1fr; }
  .tool-panel { padding: 16px 6px 8px; }
  .tool-tabs button { font-size: .9rem; gap: 6px; }
  .tool-tabs button svg { width: 18px; height: 18px; }
  .result { flex-wrap: wrap; }
  .result .btn { width: 100%; }
  .tool-actions .btn-ghost { padding: 0 18px; }
}
@media (max-width: 380px) {
  .container { width: calc(100% - 28px); }
  .brand { font-size: 1.05rem; }
  .tool { padding: 6px; border-radius: 18px; }
  .tool-tabs button svg { display: none; }
}

/* 2026 polish: generous layout, consistent icon alignment, safe resizing */
.hero-grid { grid-template-columns: minmax(0, .94fr) minmax(0, 1.16fr); gap: clamp(24px, 3vw, 42px); align-items: center; }
.hero-copy, .tool, .tool-panel, .about-media, .about-media img { min-width: 0; }
.hero-copy { padding-top: 0; }
.hero h1 { font-size: clamp(2rem, 2.65vw + .55rem, 2.9rem); overflow-wrap: normal; }
.hero-lead { line-height: 1.75; }
.hero .tool { width: 100%; max-width: 100%; }
.tool-panel { overflow-wrap: anywhere; }
.drop { min-width: 0; }
.drop small { max-width: 100%; line-height: 1.5; }
.drop strong { line-height: 1.5; }
.tool-tabs button { min-width: 0; }
.result-info { overflow: hidden; }
.about-media img { display: block; width: 100%; height: auto; object-fit: contain; }
.about-media { margin: 0; }
.main-nav a { display: inline-flex; align-items: center; justify-content: center; gap: 7px; }
.main-nav a svg { flex-shrink: 0; }
.footer-bottom { justify-content: center; align-items: center; text-align: center; }
.footer-bottom p { margin-inline: auto; }
@media (min-width: 1024px) and (max-width: 1160px) {
  .hero-grid { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 22px; }
  .hero h1 { font-size: clamp(1.85rem, 3vw, 2.35rem); }
  .tool-panel { padding: 16px 8px 10px; }
  .main-nav a { padding: 8px 9px; gap: 5px; }
}
@media (max-width: 1023px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); align-items: stretch; }
  .hero-copy { display: contents; }
  .hero .tool { order: 3; }
  .hero h1 { font-size: clamp(1.9rem, 4.2vw, 2.85rem); }
  .main-nav a { display: flex; justify-content: flex-start; }
}
@media (max-width: 600px) {
  .hero h1 { font-size: clamp(1.72rem, 6vw, 2.2rem); }
  .hero-grid { gap: 0; }
  .tool-actions { flex-wrap: wrap; }
  .tool-actions .btn { min-width: 0; }
  .drop { padding: 22px 12px; }
  .drop small { font-size: .75rem; }
}