@font-face { font-family: W95FA; src: url(https://filianislost.com/static/font/W95FA.otf); }

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #c0c0c0; --text: #000; --light: #fff; --shadow: #808080; --dark: #404040;
  --title1: #000080; --title2: #1084d0; --field: #fff; --fieldtext: #000;
  --group: #dfdfdf; --accent: #000080; --link: #00f; --sub: #555; --led: #3f6;
  --desktop: #008080;
}
body.dark {
  --bg: #2c2c2c; --text: #fff; --light: #5a5a5a; --shadow: #141414; --dark: #000;
  --title1: #3838aa; --title2: #1084d0; --field: #0f0f0f; --fieldtext: #fff;
  --group: #3a3a3a; --accent: #2889ff; --link: #7aa6ff; --sub: #aaa; --led: #2d924d;
  --desktop: #003030;
}

html, body {
  font-family: W95FA, "MS Sans Serif", Tahoma, sans-serif;
  font-size: 15px; line-height: 1.4;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  image-rendering: pixelated;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--desktop);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Crect width='8' height='8' fill='%23006464'/%3E%3Crect x='0' y='0' width='4' height='4' fill='%23005454'/%3E%3Crect x='4' y='4' width='4' height='4' fill='%23005454'/%3E%3C/svg%3E");
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body.dark {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Crect width='8' height='8' fill='%23002828'/%3E%3Crect x='0' y='0' width='4' height='4' fill='%23001e1e'/%3E%3Crect x='4' y='4' width='4' height='4' fill='%23001e1e'/%3E%3C/svg%3E");
}

/* ---- Top menu bar (Win95 style) ---- */
.menubar {
  background: var(--bg);
  border-bottom: 1px solid var(--shadow);
  border-top: 2px solid var(--light);
  display: flex; align-items: center; gap: 4px;
  padding: 3px 6px;
  font-weight: bold;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,.3);
}
.menubar a {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--text); text-decoration: none;
  padding: 3px 10px;
  font-size: 14px;
}
.menubar a:hover { background: var(--title1); color: #fff; }
.menubar a.active { background: var(--title1); color: #fff; }
.menubar .logo {
  font-weight: bold; padding-right: 8px;
  border-right: 1px solid var(--shadow);
  margin-right: 4px; color: var(--title1);
}
body.dark .menubar .logo { color: #6c8cff; }
.menubar .spacer { flex: 1; }
.menubar .lang-sw, .menubar .theme-sw {
  display: inline-flex; gap: 0;
  border: 1px solid;
  border-color: var(--dark) var(--light) var(--light) var(--dark);
}
.menubar .lang-sw span, .menubar .theme-sw span {
  padding: 2px 6px; cursor: pointer; font-size: 11px; user-select: none;
  border-right: 1px solid var(--shadow);
}
.menubar .lang-sw span:last-child, .menubar .theme-sw span:last-child { border-right: none; }
.menubar .lang-sw span.active, .menubar .theme-sw span.active {
  background: var(--title1); color: #fff; font-weight: bold;
}

/* ---- Main page container ---- */
main {
  flex: 1; padding: 20px;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}

/* ---- Win95 window ---- */
.win {
  width: 100%; max-width: 720px;
  background: var(--bg);
  border: 2px solid;
  border-color: var(--light) var(--dark) var(--dark) var(--light);
  box-shadow: 3px 3px 0 rgba(0,0,0,.4);
}
.win.wide { max-width: 920px; }

.titlebar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 3px 4px;
  background: linear-gradient(90deg, var(--title1), var(--title2));
  color: #fff; font-weight: bold; font-size: 13px;
}
.titlebar .led {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--led); box-shadow: 0 0 5px var(--led);
  margin-right: 6px; display: inline-block;
}
.titlebar .tbtns { display: flex; gap: 2px; }
.tbtn {
  width: 16px; height: 14px; line-height: 11px;
  text-align: center; background: var(--bg); color: var(--text); font-weight: bold;
  border: 1px solid;
  border-color: var(--light) var(--dark) var(--dark) var(--light);
  font-size: 10px; cursor: default;
}

.content {
  padding: 12px;
  border: 1px solid;
  border-color: var(--light) var(--shadow) var(--shadow) var(--light);
  margin: 0 4px 4px;
}
.content p { margin: 4px 0 8px; }

.group {
  border: 2px groove var(--group);
  padding: 12px 12px 10px;
  margin-bottom: 12px;
  position: relative;
}
.legend {
  position: absolute; top: -9px; left: 8px;
  background: var(--bg); padding: 0 6px;
  font-weight: bold; font-size: 13px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 14px; text-decoration: none; color: var(--text);
  background: var(--bg);
  font: 14px W95FA, "MS Sans Serif", sans-serif;
  border: 2px solid;
  border-color: var(--light) var(--dark) var(--dark) var(--light);
  cursor: pointer;
  user-select: none;
}
.btn:hover { background: var(--group); }
.btn:active {
  border-color: var(--dark) var(--light) var(--light) var(--dark);
  padding: 8px 13px 6px 15px;
}
.btn.primary { font-weight: bold; }
.btn.full { display: flex; width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }
.btn-row .btn { flex: 1; min-width: 140px; }

.input {
  width: 100%; box-sizing: border-box;
  padding: 5px 6px; font: 13px monospace;
  background: var(--field); color: var(--fieldtext);
  border: 2px inset var(--shadow);
}

a.link { color: var(--link); font-weight: bold; }
a.link:hover { background: var(--link); color: #fff; text-decoration: none; }

code {
  background: var(--field); color: var(--fieldtext);
  padding: 2px 5px; border: 1px solid var(--shadow);
  font: 13px JetBrains Mono, monospace;
}

ol.steps, ul.bullets { padding-left: 22px; margin: 4px 0 8px; line-height: 1.9; }
ul.bullets { list-style: none; padding-left: 0; }
ul.bullets li::before { content: "▪ "; color: var(--accent); font-weight: bold; }

.note {
  background: var(--field); color: var(--fieldtext);
  border: 2px inset var(--shadow);
  padding: 8px 10px;
  font-size: 13px;
  margin: 6px 0;
}
.note.warn { background: #fff3cd; color: #664d03; border-color: #ffe69c; }
body.dark .note.warn { background: #3a2f15; color: #ffd66e; border-color: #5a4a20; }

.hero-cta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}
@media (max-width: 540px) { .hero-cta { grid-template-columns: 1fr; } }

.feat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
}
@media (max-width: 540px) { .feat-grid { grid-template-columns: 1fr; } }
.feat-card {
  border: 2px solid;
  border-color: var(--light) var(--dark) var(--dark) var(--light);
  background: var(--field); color: var(--fieldtext);
  padding: 10px 12px;
}
.feat-card b { color: var(--accent); display: block; margin-bottom: 4px; font-size: 14px; }
.feat-card .ico {
  display: inline-block; width: 22px; height: 22px;
  background: var(--accent); color: #fff;
  text-align: center; line-height: 22px;
  font-weight: bold; margin-right: 6px;
  vertical-align: -5px;
}

details { margin: 4px 0 8px; border-top: 1px dotted var(--shadow); padding-top: 6px; }
details:first-of-type { border-top: none; padding-top: 0; }
details summary { cursor: pointer; font-weight: bold; padding: 4px 0; outline: none; }
details summary:hover { color: var(--accent); }
details p { padding: 4px 0 8px 16px; line-height: 1.5; }

footer {
  text-align: center; padding: 16px;
  font-size: 12px; color: rgba(255,255,255,.85);
  background: rgba(0,0,0,.2);
  margin-top: auto;
}
footer a { color: rgba(255,255,255,.85); }

/* hidden by default; lang switcher toggles via body class */
[data-lang] { display: none; }
body.lang-en [data-lang="en"],
body.lang-ru [data-lang="ru"],
body.lang-de [data-lang="de"],
body.lang-fr [data-lang="fr"] { display: block; }
[data-lang][data-inline] { display: none; }
body.lang-en [data-lang="en"][data-inline],
body.lang-ru [data-lang="ru"][data-inline],
body.lang-de [data-lang="de"][data-inline],
body.lang-fr [data-lang="fr"][data-inline] { display: inline; }

.kbd {
  display: inline-block; padding: 1px 6px;
  border: 1px solid var(--shadow);
  background: var(--bg); color: var(--text);
  font: 12px monospace;
  box-shadow: 0 1px 0 var(--shadow), inset 0 -1px 0 var(--shadow);
}

.badge {
  display: inline-block; padding: 1px 6px;
  font-size: 11px; font-weight: bold;
  background: var(--accent); color: #fff;
  border: 1px solid var(--dark);
}
.badge.green { background: #1e6e2c; }
.badge.red { background: #a8201f; }