:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c2330;
  --muted: #667085;
  --border: #e3e6eb;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #e8efff;
  --folder: #9a5b00;
  --folder-soft: #fff3dc;
  --link: #047857;
  --link-soft: #dcfce7;
  --danger: #c62828;
  --danger-soft: #fdecec;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --card: #1b2029;
    --text: #e6e8ec;
    --muted: #9aa3b2;
    --border: #2c3340;
    --primary: #4f86f7;
    --primary-hover: #6b9bff;
    --primary-soft: #1c2a47;
    --folder: #f0b54d;
    --folder-soft: #3a2c12;
    --link: #4ade80;
    --link-soft: #12301f;
    --danger: #ef6b6b;
    --danger-soft: #3a1d1d;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--primary); }
h1 { font-size: 1.6rem; margin: 0 0 0.4rem; line-height: 1.25; }
h2 { font-size: 1.15rem; margin: 0 0 0.8rem; }
h3 { font-size: 1rem; margin: 0; }
code { background: var(--primary-soft); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.error { color: var(--danger); margin: 0.4rem 0; }
.req { color: var(--danger); }
.nowrap { white-space: nowrap; }
.break { word-break: break-all; }
.loading { text-align: center; margin-top: 30vh; color: var(--muted); }

/* ---- Layout ---- */

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.7rem 1.25rem; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.topbar-right { display: flex; align-items: center; gap: 0.75rem; }

.brand { display: inline-flex; align-items: center; gap: 0.55rem; font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.brand-lg { font-size: 1.4rem; margin-bottom: 0.2rem; }
.logo {
  width: 26px; height: 26px; border-radius: 7px; background: var(--primary); position: relative; flex: none;
}
.logo::before, .logo::after {
  content: ""; position: absolute; left: 6px; height: 2.5px; border-radius: 2px; background: #fff;
}
.logo::before { top: 8px; width: 14px; box-shadow: 0 5px 0 #fff; }
.logo::after { top: 18px; width: 9px; }

.wrap { max-width: 1150px; margin: 0 auto; padding: 1.25rem; }
.wrap-narrow { max-width: 820px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.4rem; margin-bottom: 1.25rem;
}

.back { display: inline-block; margin-bottom: 0.9rem; text-decoration: none; }

/* ---- Buttons ---- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  padding: 0.5rem 0.95rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); font: inherit; font-weight: 500;
  text-decoration: none; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--primary); }
.btn:disabled { opacity: 0.6; cursor: progress; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--primary); }
.btn-ghost:hover { background: var(--primary-soft); border-color: transparent; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger-text { color: var(--danger); }
.btn-danger-text:hover { background: var(--danger-soft); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.87rem; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.linklike { background: none; border: 0; padding: 0; color: var(--primary); font: inherit; text-decoration: underline; cursor: pointer; }

/* ---- Forms ---- */

label { display: block; font-weight: 500; margin-bottom: 0.9rem; }
input, textarea, select {
  display: block; width: 100%; margin-top: 0.3rem; padding: 0.55rem 0.7rem;
  border: 1px solid var(--border); border-radius: 8px; background: var(--card); color: var(--text);
  font: inherit; font-weight: 400;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary-soft); border-color: var(--primary); }
input[type="file"] { padding: 0.45rem; }
label.check { display: flex; align-items: center; gap: 0.5rem; font-weight: 400; margin-bottom: 0.4rem; }
label.check input { width: auto; margin: 0; }
fieldset.kind { border: 0; padding: 0; margin: 0 0 0.9rem; min-width: 0; }
fieldset.kind legend { font-weight: 500; padding: 0; margin-bottom: 0.4rem; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.files-box { border: 1px dashed var(--border); border-radius: var(--radius); padding: 1rem 1rem 0.3rem; margin: 0.5rem 0 1rem; }

/* ---- Login ---- */

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: 100%; max-width: 380px; }

/* ---- Dashboard ---- */

.toolbar { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1.25rem; align-items: center; }
.toolbar input[type="search"] { flex: 1 1 280px; margin: 0; }
.toolbar select { width: auto; margin: 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 1rem; }

.tool-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); display: flex; flex-direction: column; transition: border-color 0.15s;
}
.tool-card:hover { border-color: var(--primary); }
.tool-card-main { color: inherit; text-decoration: none; padding: 1.1rem 1.1rem 0.4rem; flex: 1; }
.tool-card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.tool-card .desc { margin: 0.6rem 0 0.4rem; }
.tool-card-actions { display: flex; gap: 0.4rem; padding: 0.7rem 1.1rem 1rem; align-items: center; flex-wrap: wrap; }

.version { color: var(--muted); font-size: 0.85rem; font-weight: 500; white-space: nowrap; }
.version-lg { font-size: 1rem; }

.badges { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.45rem; }
.badge {
  display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 0.12rem 0.5rem;
  border-radius: 999px; background: var(--bg); border: 1px solid var(--border); color: var(--muted);
}
.badge-exe { background: var(--primary-soft); border-color: transparent; color: var(--primary); }
.badge-folder { background: var(--folder-soft); border-color: transparent; color: var(--folder); }
.badge-link { background: var(--link-soft); border-color: transparent; color: var(--link); }

.empty { grid-column: 1 / -1; text-align: center; padding: 3rem 1rem; }

.footer { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem 1.2rem; margin-top: 2rem; }

/* ---- Tool page ---- */

.tool-head { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.lead { font-size: 1.05rem; margin: 0.7rem 0 0.3rem; }

.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.3rem 0 0.5rem; }
.download-box { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; background: var(--bg); min-width: 0; }
.download-title { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.5rem; }
.file-line { margin-bottom: 0.6rem; word-break: break-word; }

.inline-form { margin-top: 0.9rem; }
.inline-form summary { cursor: pointer; color: var(--primary); font-weight: 500; }
.inline-form form { margin-top: 0.8rem; }

.field { border-top: 1px solid var(--border); padding-top: 1rem; margin-top: 1rem; }
.field h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 0.4rem; }
.text { white-space: pre-wrap; word-break: break-word; }

.table-wrap { overflow-x: auto; }
.versions { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.versions th, .versions td { text-align: left; padding: 0.55rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.versions th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }
.versions tr.is-current td { background: var(--primary-soft); }
.versions .actions { text-align: right; }

.danger-zone h2 { color: var(--danger); }

/* ---- Progress & toast ---- */

.progress { position: relative; height: 26px; background: var(--border); border-radius: 8px; overflow: hidden; margin: 0.4rem 0 0.9rem; }
.progress-fill { height: 100%; width: 0; background: var(--primary); transition: width 0.2s; }
.progress-text { position: absolute; inset: 0; display: grid; place-items: center; font-size: 0.85rem; font-weight: 600; color: var(--text); }

.toast {
  position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); z-index: 50;
  background: #1f2937; color: #fff; padding: 0.7rem 1.1rem; border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25); max-width: min(92vw, 560px);
}
.toast-error { background: var(--danger); }

/* ---- Small screens ---- */

@media (max-width: 720px) {
  .row2, .downloads { grid-template-columns: 1fr; }
  .tool-head { flex-direction: column; }
  .hide-sm { display: none; }
  .wrap { padding: 1rem; }
  .card { padding: 1.1rem; }
}