:root {
  --bg: #0b1320;
  --panel: #131e2e;
  --line: #24344a;
  --text: #e6edf5;
  --dim: #8fa3b8;
  --accent: #ffb020;
  --aqua: #ffb020;
  --code: #1d2c44;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--aqua); }
img { max-width: 100%; height: auto; border-radius: 6px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* top bar */
header.top {
  position: sticky; top: 0; z-index: 10;
  background: linear-gradient(180deg, #16233a, #0f1929);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; gap: 20px; height: 54px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: .5px; color: var(--text); text-decoration: none; }
.brand svg { flex: none; }
.brand b { color: var(--accent); font-size: 12px; font-weight: 600; opacity: .8; }
header nav { display: flex; gap: 4px; margin-left: auto; font-size: 14px; }
header nav a { color: var(--dim); text-decoration: none; padding: 6px 10px; border-radius: 8px; }
header nav a:hover { background: #1b2a40; }
header nav a.on { color: #111; background: var(--accent); font-weight: 600; }
.lang { font: 12px var(--mono); border: 1px solid var(--line); border-radius: 4px; padding: 2px 7px; }

/* hero */
.hero { padding: 64px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(30px, 6vw, 48px); line-height: 1.15; margin: 0 0 8px; }
.hero .by { color: var(--dim); margin: 0 0 18px; }
.hero .lead { max-width: 680px; margin: 0 auto 28px; font-size: 18px; color: var(--dim); }
.vfo {
  display: inline-block; font: 600 15px var(--mono); color: var(--accent);
  background: #0b1422; border: 1px solid var(--line); border-radius: 4px;
  padding: 3px 10px; margin-bottom: 18px;
}
.btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 8px;
  font-weight: 600; text-decoration: none; color: var(--text);
  border: 1px solid var(--line); background: var(--panel);
}
.btn.main { background: var(--accent); border-color: var(--accent); color: #111; }
.btn:hover { filter: brightness(1.1); }
.hero .shot { margin-top: 40px; border: 1px solid var(--line); }
.small { font-size: 13px; color: var(--dim); }

/* sections */
section { padding: 48px 0; border-top: 1px solid var(--line); }
h2 { font-size: 26px; margin: 0 0 20px; }
h2::before { content: ""; display: inline-block; width: 10px; height: 10px; background: var(--accent); border-radius: 2px; margin-right: 10px; vertical-align: middle; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h3 { margin: 0 0 8px; font-size: 17px; color: var(--accent); }
.card p { margin: 0; color: var(--dim); font-size: 15px; }
.card img { margin-top: 12px; }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--dim); margin-top: 6px; }
.gallery { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
ol.steps { padding-left: 22px; }
ol.steps li { margin-bottom: 10px; }
.note { border-left: 3px solid var(--accent); background: var(--panel); padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--dim); }
code { font: 14px var(--mono); background: var(--code); color: #bcd; padding: 1px 6px; border-radius: 4px; }
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--dim); font-size: 14px; }

/* guide */
.guide { display: grid; grid-template-columns: 240px 1fr; gap: 32px; padding: 32px 16px; }
.toc { position: sticky; top: 70px; align-self: start; max-height: calc(100vh - 90px); overflow: auto; font-size: 14px; }
.toc a { display: block; color: var(--dim); text-decoration: none; padding: 2px 0; }
.toc a.h3 { padding-left: 14px; font-size: 13px; }
.toc a:hover { color: var(--text); }
.doc { min-width: 0; }
.doc h1 { font-size: 32px; margin-top: 0; }
.doc h2 { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); }
.doc h3 { margin-top: 32px; color: var(--accent); }
.doc h2, .doc h3 { scroll-margin-top: 70px; }
.doc table { border-collapse: collapse; display: block; overflow-x: auto; margin: 16px 0; font-size: 14px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--panel); color: var(--dim); font-weight: 500; }
.doc tr:hover td { background: #17243a; }
.doc pre { background: #0b1422; border: 1px solid var(--line); padding: 12px; border-radius: 6px; overflow-x: auto; }
.doc pre code { padding: 0; }

@media (max-width: 760px) {
  header nav a:not(.lang):not(.keep) { display: none; }
  .guide { grid-template-columns: 1fr; }
  .toc { position: static; max-height: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
}

/* account, reports, admin */
main.account, main.admin { padding: 32px 16px 60px; }
.account .grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); align-items: start; }
.account .card + .card, .admin .card + .card, form.card { margin-top: 16px; }
label { display: block; color: var(--dim); font-size: 13px; margin-bottom: 12px; }
input, select, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 10px 12px;
  background: #0b1422; color: var(--text); border: 1px solid var(--line); border-radius: 8px;
  font: 15px inherit; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 176, 32, .2); }
label.check { display: flex; gap: 8px; align-items: center; color: var(--text); font-size: 14px; }
label.check input { width: auto; margin: 0; accent-color: var(--accent); }
button.btn { cursor: pointer; font: inherit; font-weight: 600; }
.btn.sm { padding: 5px 10px; font-size: 13px; font-weight: 500; }
.note.err { border-left-color: #ff6b6b; color: #ffb3b3; }
.pre { white-space: pre-wrap; }
.tag { background: #1d2c44; color: #bcd; padding: 2px 8px; border-radius: 6px; font-size: 12px; font-weight: 500; vertical-align: middle; }
.tag.st-open { background: #3a2a10; color: var(--accent); }
.tag.st-working { background: #12304a; color: #7cc4ff; }
.tag.st-fixed { background: #133a26; color: #5fd38a; }
.tag.st-closed { color: var(--dim); }
.stats { display: flex; flex-wrap: wrap; gap: 10px 24px; color: var(--dim); }
.stats b { color: var(--text); font-size: 20px; margin-right: 4px; }
.tabs, .filters { display: flex; gap: 6px; flex-wrap: wrap; margin: 16px 0; }
.tabs a, .filters a { color: var(--dim); text-decoration: none; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); }
.tabs a.on, .filters a.on { background: var(--accent); color: #111; border-color: var(--accent); font-weight: 600; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row input { width: auto; flex: 1 1 220px; margin: 0; }
.table { overflow-x: auto; margin-top: 16px; }
.table table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { color: var(--dim); font-weight: 500; text-align: left; padding: 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 8px; border-bottom: 1px solid #1a283c; vertical-align: top; }
.table tr:hover td { background: #17243a; }
.table tr.off td { opacity: .5; }
.acts { white-space: nowrap; }
form.inline { display: inline; }
img.att { max-width: 100%; max-height: 480px; margin-top: 12px; border: 1px solid var(--line); }
.table td { white-space: nowrap; }
.ver { padding: 10px 0; border-bottom: 1px solid #1a283c; }
.ver:last-child { border-bottom: 0; }
.md { font-size: 14px; color: var(--dim); }
.md h2, .md h3 { font-size: 15px; color: var(--text); margin: 14px 0 4px; }
.md h2::before { display: none; }
.md ul { padding-left: 20px; margin: 4px 0; }
h4.issues { color: #ff6b6b; font-size: 14px; margin: 14px 0 4px; }
/* feature cards: same height per row, pictures aligned at the bottom, same ratio */
#features .card, #funzioni .card { display: flex; flex-direction: column; }
#features .card img, #funzioni .card img { margin-top: auto; width: 100%; aspect-ratio: 5 / 3; object-fit: cover; object-position: top; }
#features .card p, #funzioni .card p { margin-bottom: 12px; }

/* X6100 Link page */
.brand { white-space: nowrap; }
.appicon { border-radius: 16px; margin-bottom: 12px; }
.feat { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: center; margin: 48px 0; }
.feat.rev > img { order: 2; }
.feat > img { border: 1px solid var(--line); }
.feat h2 { margin-bottom: 12px; }
.feat ul { padding-left: 20px; color: var(--dim); }
.feat li { margin-bottom: 6px; }
.feat li b, .feat p b { color: var(--text); }
.gallery.phones { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); max-width: 760px; margin: 0 auto; }
@media (max-width: 760px) {
  .feat { grid-template-columns: 1fr; gap: 16px; margin: 32px 0; }
  .feat.rev > img { order: 0; }
}

/* admin area: own header, side menu */
body.adm { background: #0a111c; }
.adm-top { display: flex; align-items: center; gap: 16px; padding: 10px 20px; background: #101a2a; border-bottom: 1px solid var(--line); }
.adm-top .btn { margin-left: auto; }
.adm-top .brand { font-size: 16px; }
.adm-top .brand b { font-size: 13px; letter-spacing: .5px; text-transform: uppercase; opacity: 1; }
.adm-body { display: grid; grid-template-columns: 210px 1fr; min-height: calc(100vh - 51px); }
.adm-side { background: #0d1624; border-right: 1px solid var(--line); padding: 16px 10px; display: flex; flex-direction: column; gap: 2px; }
.adm-side a { color: var(--dim); text-decoration: none; padding: 9px 12px; border-radius: 8px; font-size: 15px; display: flex; align-items: center; }
.adm-side a:hover { background: #17243a; color: var(--text); }
.adm-side a.on { background: #1b2a40; color: var(--text); box-shadow: inset 3px 0 0 var(--accent); }
.adm-side .count { margin-left: auto; background: var(--accent); color: #111; font-size: 12px; font-weight: 700; border-radius: 10px; padding: 0 7px; }
.adm-main { padding: 24px 28px 60px; min-width: 0; max-width: 1200px; }
.adm-main h1 { font-size: 24px; margin: 0 0 18px; }
.adm-main .card + .card, .adm-main form.card { margin-top: 16px; }
.adm-main .grid { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); align-items: start; margin-top: 16px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-decoration: none; color: var(--text); display: flex; flex-direction: column; }
.kpi:hover { border-color: var(--accent); }
.kpi b { font-size: 34px; line-height: 1.1; }
.kpi span { color: var(--accent); font-weight: 600; }
.kpi small { color: var(--dim); font-size: 13px; margin-top: 4px; }
p.line { margin: 0; padding: 8px 0; border-bottom: 1px solid #1a283c; }
p.line:last-child { border-bottom: 0; }
td.wrapcell { white-space: normal; }
@media (max-width: 760px) {
  .adm-body { grid-template-columns: 1fr; }
  .adm-side { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 8px; }
  .adm-side a { white-space: nowrap; }
  .adm-side a.on { box-shadow: inset 0 -3px 0 var(--accent); }
  .adm-main { padding: 18px 16px 40px; }
  .adm-top .small { display: none; }
}

/* news box */
.news { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.news .card p.small { margin: 0 0 4px; }
.news .card h3 a { color: var(--accent); text-decoration: none; }
.news .card p { color: var(--dim); font-size: 15px; margin: 0; }

/* versions page */
main.versions { padding: 32px 16px 60px; }
.vgrid { display: grid; grid-template-columns: 220px 1fr; gap: 24px; align-items: start; }
.vlist { position: sticky; top: 70px; display: flex; flex-direction: column; gap: 2px; max-height: calc(100vh - 90px); overflow: auto; }
.vlist a { color: var(--text); text-decoration: none; padding: 8px 12px; border-radius: 8px; border: 1px solid transparent; }
.vlist a:hover { background: #17243a; }
.vlist a.on { background: var(--panel); border-color: var(--line); box-shadow: inset 3px 0 0 var(--accent); }
.vlist a .small { display: block; }
.vdetail h2 { margin-bottom: 12px; }
.vdetail h2::before { display: none; }
.vdetail h3 { font-size: 16px; margin: 22px 0 6px; color: var(--accent); }
ul.files, ul.commits { padding-left: 18px; font-size: 14px; }
ul.commits li { margin-bottom: 4px; color: var(--dim); }
ul.commits code { color: var(--accent); }
@media (max-width: 760px) {
  .vgrid { grid-template-columns: 1fr; }
  .vlist { position: static; flex-direction: row; overflow-x: auto; max-height: none; }
  .vlist a { white-space: nowrap; }
}

.btn.soon { opacity: .55; cursor: default; }
.btn.big { font-size: 18px; padding: 14px 28px; }
.donate p { max-width: 640px; }

/* language menu */
details.langsel { position: relative; margin-left: 6px; }
details.langsel summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 5px 9px; }
details.langsel summary::-webkit-details-marker { display: none; }
details.langsel summary::after { content: "▾"; color: var(--dim); font-size: 11px; }
details.langsel img { border-radius: 2px; display: block; }
details.langsel a { position: absolute; right: 0; top: calc(100% + 6px); display: flex; align-items: center; gap: 7px; white-space: nowrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; color: var(--text); text-decoration: none; font-size: 13px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .4); }
details.langsel a:hover { border-color: var(--accent); }
@media (max-width: 760px) { details.langsel summary span { display: none; } }

/* status bar legend */
img.statusbar { width: 100%; border: 1px solid var(--line); margin-bottom: 8px; image-rendering: pixelated; }
dl.legend { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 16px 0; font-size: 15px; }
dl.legend dt { font-weight: 600; }
dl.legend dd { margin: 0; color: var(--dim); }
dl.legend .g { color: #5fd38a; } dl.legend .b { color: #4fa8ff; } dl.legend .a { color: var(--accent); }
@media (max-width: 760px) { dl.legend { grid-template-columns: 1fr; } dl.legend dd { margin-bottom: 8px; } }

/* hero: themes slideshow */
.slides { position: relative; margin: 40px auto 0; max-width: 800px; aspect-ratio: 800 / 480; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.slides img { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 0; opacity: 0; transition: opacity .8s; }
.slides img.on { opacity: 1; }
.slide-cap { display: flex; justify-content: center; align-items: center; gap: 16px; color: var(--dim); font-size: 14px; margin-top: 10px; flex-wrap: wrap; }
.slide-cap b { color: var(--text); }
.dots { display: inline-flex; gap: 6px; }
.dots button { width: 9px; height: 9px; border-radius: 50%; border: 0; padding: 0; background: var(--line); cursor: pointer; }
.dots button.on { background: var(--accent); }

/* logged-in user at the top right */
header nav .who { color: var(--accent); font-weight: 700; font-size: 14px; margin-left: 10px; white-space: nowrap; }
header nav form.logout { display: inline; margin: 0; }
header nav form.logout .btn { padding: 5px 10px; }

/* admin summary: tidy grid, charts */
.adm-main .kpis { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.adm-main .kpi { min-height: 112px; }
.dash { display: grid; gap: 16px; margin-top: 16px; }
.dash.two { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
.dash.four { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.dash > .card { margin: 0; }
.dash .card h3 { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.chart { position: relative; padding-left: 28px; }
.chart-max { position: absolute; left: 0; top: -4px; font-size: 11px; color: var(--dim); }
.bars { height: 140px; display: flex; align-items: flex-end; gap: 2px; border-bottom: 1px solid var(--line);
  background: repeating-linear-gradient(to top, transparent 0 34px, #1a283c 34px 35px); }
.bar { flex: 1; min-height: 1px; background: var(--accent); border-radius: 4px 4px 0 0; cursor: default; }
.bar:hover { filter: brightness(1.25); }
.chart-x { display: flex; justify-content: space-between; font-size: 11px; color: var(--dim); margin-top: 4px; }
ul.ranked { list-style: none; padding: 0; margin: 0; }
ul.ranked li { display: grid; grid-template-columns: minmax(70px, 40%) 1fr 34px; gap: 8px; align-items: center; padding: 4px 0; font-size: 14px; }
.rk { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rb { height: 8px; background: #17243a; border-radius: 4px; overflow: hidden; }
.rb i { display: block; height: 100%; background: var(--accent); border-radius: 4px; }
.rv { text-align: right; color: var(--dim); font-variant-numeric: tabular-nums; }
@media (max-width: 760px) { .dash.two { grid-template-columns: 1fr; } }

/* BETA marks */
.beta-badge { font: 700 10px/1 var(--mono); letter-spacing: 1px; color: #111; background: var(--accent); border-radius: 4px; padding: 3px 6px; margin-left: 4px; }
.stamped { position: relative; max-width: 800px; margin: 0 auto; }
.stamped .slides, .stamped .shot { margin-top: 40px; }
.stamp { position: absolute; z-index: 2; top: 58px; right: -10px; transform: rotate(12deg); pointer-events: none;
  font: 800 30px/1 var(--mono); letter-spacing: 6px; color: #ff6b6b; border: 4px solid #ff6b6b; border-radius: 8px;
  padding: 6px 14px; background: rgba(11, 19, 32, .55); opacity: .9; }
.beta-note { margin: 14px auto 0; max-width: 600px; font-size: 14px; color: #ffb3b3; }
.beta-note::before { content: "β "; font-weight: 700; color: #ff6b6b; }
@media (max-width: 760px) { .stamp { font-size: 20px; letter-spacing: 4px; top: 50px; right: 4px; border-width: 3px; } .beta-badge { display: none; } }

/* summary: equal boxes, flags, world map */
.adm-main .dash > .card { margin: 0; display: flex; flex-direction: column; }
.dash .card h3 { min-height: 24px; flex-wrap: wrap; }
.dash .chart { margin-top: auto; }
.adm-main .kpis > .kpi { margin: 0; }
img.flag, span.flag { display: inline-block; width: 20px; height: 15px; vertical-align: -2px; margin-right: 7px; border-radius: 2px; background: #1b2a40; }
.map-card { margin-top: 16px; }
#worldmap { height: 340px; }
.jvm-tooltip { background: var(--panel); border: 1px solid var(--line); color: var(--text); font: 13px system-ui, sans-serif; padding: 5px 9px; border-radius: 6px; }

/* header: items never break inside; when the menu does not fit it moves, whole and centred, to a second row */
header.top .wrap { max-width: 1320px; height: auto; min-height: 54px; flex-wrap: wrap; row-gap: 2px; padding-top: 6px; padding-bottom: 6px; }
header nav { flex-wrap: wrap; align-items: center; justify-content: flex-end; row-gap: 4px; }
header nav a, header nav .who { white-space: nowrap; }
header nav a { padding: 6px 9px; }
@media (max-width: 1260px) {
  header.top .wrap { justify-content: center; }
  header nav { width: 100%; margin-left: 0; justify-content: center; }
}

/* firmware + app */
.pillars { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: stretch; }
.pillar { display: flex; flex-direction: column; }
.pillar p:last-child { margin-top: auto; padding-top: 12px; }
.pillar h3 { font-size: 20px; color: var(--text); margin: 4px 0 10px; }
.pillar p { color: var(--dim); }
.pillar b { color: var(--text); }
.pill-kind { font: 600 12px var(--mono); letter-spacing: 1px; text-transform: uppercase; color: var(--accent); margin: 0; }
.pillar.app { border-color: var(--accent); box-shadow: 0 0 0 1px rgba(255, 176, 32, .25); }
.plus { align-self: center; font-size: 34px; font-weight: 700; color: var(--accent); }
@media (max-width: 760px) { .pillars { grid-template-columns: 1fr; } .plus { justify-self: center; } }

/* admin: use the whole width, controls on one line */
.adm-main { max-width: none; }
.adm-main label.check { white-space: nowrap; }
.adm-main .table td.acts { white-space: nowrap; }
.adm-main .row .btn { white-space: nowrap; }

/* beta tester toggle: green with a tick when on, red when off */
button.betatoggle { font: 700 12px system-ui, sans-serif; letter-spacing: .5px; border-radius: 6px; padding: 5px 10px; cursor: pointer; white-space: nowrap; border: 1px solid; }
button.betatoggle.on { background: #133a26; color: #5fd38a; border-color: #5fd38a; }
button.betatoggle.off { background: #3a1416; color: #ff6b6b; border-color: #ff6b6b; }
button.betatoggle:hover { filter: brightness(1.2); }
.table td img.flag, .table td span.flag { margin-right: 8px; }