:root {
  color-scheme: light dark;
  --bg: #f4f5f9;
  --bg-grad: radial-gradient(1200px 500px at 80% -10%, #e3e9ff 0%, transparent 60%),
             radial-gradient(900px 400px at -10% 0%, #e7f4ef 0%, transparent 55%);
  --fg: #101623;
  --card: #ffffff;
  --line: #e4e7ee;
  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-soft: #eef0ff;
  --muted: #667085;
  --shadow: 0 1px 2px rgba(16, 22, 35, .05), 0 8px 24px -12px rgba(16, 22, 35, .12);
  --shadow-lift: 0 2px 4px rgba(16, 22, 35, .06), 0 16px 32px -16px rgba(16, 22, 35, .2);
  --radius: 14px;
  --topbar-bg: rgba(13, 17, 28, .92);
  --danger: #dc2626;
  --ok: #059669;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0f17;
    --bg-grad: radial-gradient(1200px 500px at 80% -10%, #1b2140 0%, transparent 60%),
               radial-gradient(900px 400px at -10% 0%, #12261f 0%, transparent 55%);
    --fg: #e7eaf2;
    --card: #151a26;
    --line: #262d3e;
    --accent: #818cf8;
    --accent-2: #a78bfa;
    --accent-soft: #1e2340;
    --muted: #8b94a7;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px -12px rgba(0, 0, 0, .5);
    --shadow-lift: 0 2px 4px rgba(0, 0, 0, .5), 0 16px 32px -16px rgba(0, 0, 0, .6);
    --topbar-bg: rgba(10, 13, 21, .92);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg-grad), var(--bg);
  background-attachment: fixed;
  color: var(--fg);
  min-height: 100vh;
}
h1 { font-size: 1.55rem; letter-spacing: -.02em; margin: .4rem 0 1.1rem; }
h2 { font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 .8rem; }
h3 { font-size: 1.05rem; margin: 1rem 0 .5rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---- top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.1rem;
  background: var(--topbar-bg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  color: #fff; padding: .65rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.topbar .brand {
  color: #fff; font-weight: 800; font-size: 1.05rem; letter-spacing: -.01em;
  display: inline-flex; align-items: center; gap: .5rem;
}
.topbar .brand::before {
  content: ""; width: 22px; height: 22px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px rgba(99, 102, 241, .55);
}
.topbar .brand:hover { text-decoration: none; }
.topbar nav { display: flex; gap: .15rem; flex-wrap: wrap; }
.topbar nav a {
  color: #b6bdcc; padding: .35rem .7rem; border-radius: 8px;
  font-size: .92rem; font-weight: 500; transition: background .15s, color .15s;
}
.topbar nav a:hover { color: #fff; background: rgba(255, 255, 255, .09); text-decoration: none; }
.badge {
  background: var(--danger); color: #fff; border-radius: 99px;
  padding: .05rem .45rem; font-size: .72rem; font-weight: 700; vertical-align: 1px;
}
.searchbox { margin-left: auto; }
.searchbox input {
  padding: .42rem .8rem; border-radius: 99px; min-width: 200px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .08); color: #fff;
  transition: background .15s, border-color .15s, min-width .2s;
}
.searchbox input::placeholder { color: #99a1b3; }
.searchbox input:focus { outline: none; background: rgba(255, 255, 255, .14); border-color: var(--accent); min-width: 240px; }
.topbar button.link { color: #b6bdcc; text-decoration: none; font-size: .92rem; }
.topbar button.link:hover { color: #fff; }

/* ---- layout ---- */
.container { max-width: 1120px; margin: 1.6rem auto; padding: 0 1.25rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.1rem; }
.grow { flex: 1; } .grow2 { grid-column: span 2; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.35rem; margin-bottom: 1.1rem; box-shadow: var(--shadow);
}
.card.slim { padding: .65rem 1.1rem; }
.card.row { transition: box-shadow .15s, transform .15s, border-color .15s; }
.card.row:hover { box-shadow: var(--shadow-lift); transform: translateY(-1px); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.card.narrow { max-width: 400px; margin: 7vh auto; padding: 2rem 2.2rem 1.8rem; }
.card.narrow h1 { text-align: center; margin-bottom: 1.4rem; }
.card.narrow h1::before {
  content: ""; display: block; width: 44px; height: 44px; margin: 0 auto .8rem;
  border-radius: 13px; background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 20px -6px rgba(99, 102, 241, .6);
}
.card.narrow button { width: 100%; margin-top: .6rem; padding: .6rem; }

.row { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; padding: .3rem 0; }
section.card .row + .row { border-top: 1px solid color-mix(in srgb, var(--line) 55%, transparent); }
.rowform { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; margin: .5rem 0; }

/* ---- forms ---- */
input, select, textarea {
  padding: .5rem .75rem; border: 1px solid var(--line); border-radius: 9px;
  font: inherit; width: auto; max-width: 100%;
  background: var(--card); color: var(--fg);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
textarea, input[type=text] { width: 100%; }
.rowform input[type=text] { width: auto; flex: 1; }
label { display: block; margin: .55rem 0; font-weight: 500; font-size: .92rem; }
label input { margin-top: .3rem; font-weight: 400; }
input[type=password] { width: 100%; }

button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; color: #fff; padding: .5rem 1.05rem; border-radius: 9px;
  font: inherit; font-weight: 600; cursor: pointer;
  box-shadow: 0 1px 2px rgba(16, 22, 35, .2), inset 0 1px 0 rgba(255, 255, 255, .15);
  transition: filter .15s, transform .1s, box-shadow .15s;
}
button:hover { filter: brightness(1.08); box-shadow: 0 4px 14px -4px color-mix(in srgb, var(--accent) 60%, transparent); }
button:active { transform: translateY(1px); }
button.link { background: none; color: inherit; padding: 0; box-shadow: none; font-weight: 500; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
button.link:hover { filter: none; }

/* ---- bits ---- */
.muted { color: var(--muted); font-size: .9em; }
.tag {
  font-size: .72rem; font-weight: 600; padding: .12rem .6rem; border-radius: 99px;
  background: color-mix(in srgb, var(--muted) 14%, transparent);
  color: color-mix(in srgb, var(--fg) 75%, var(--muted));
  display: inline-flex; align-items: center; gap: .35rem; white-space: nowrap;
}
.tag::before { content: ""; width: 6px; height: 6px; border-radius: 99px; background: currentColor; opacity: .7; }
.tag.low        { background: color-mix(in srgb, #0ea5e9 15%, transparent); color: #0284c7; }
.tag.medium     { background: color-mix(in srgb, #eab308 16%, transparent); color: #a16207; }
.tag.high       { background: color-mix(in srgb, #f97316 16%, transparent); color: #c2410c; }
.tag.urgent     { background: color-mix(in srgb, #ef4444 15%, transparent); color: #dc2626; }
.tag.st-done       { background: color-mix(in srgb, #10b981 15%, transparent); color: var(--ok); }
.tag.st-in_progress{ background: color-mix(in srgb, #3b82f6 15%, transparent); color: #2563eb; }
.tag.st-blocked    { background: color-mix(in srgb, #ef4444 15%, transparent); color: #dc2626; }
@media (prefers-color-scheme: dark) {
  .tag.low { color: #7dd3fc; } .tag.medium { color: #fde047; } .tag.high { color: #fdba74; }
  .tag.urgent, .tag.st-blocked { color: #fca5a5; }
  .tag.st-done { color: #6ee7b7; } .tag.st-in_progress { color: #93c5fd; }
}

.progress {
  background: color-mix(in srgb, var(--muted) 18%, transparent);
  border-radius: 99px; height: 7px; width: 120px; overflow: hidden;
}
.progress.wide { width: min(400px, 60vw); }
.progress .bar {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  height: 100%; border-radius: 99px; transition: width .4s ease;
}

.msg {
  padding: .65rem 1rem; border-radius: 10px; margin-bottom: .9rem;
  background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  font-size: .93rem;
}
.msg.error   { background: color-mix(in srgb, var(--danger) 10%, var(--card)); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.msg.success { background: color-mix(in srgb, var(--ok) 10%, var(--card)); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }

.comment { border-top: 1px solid var(--line); padding: .7rem 0; }
.comment:first-of-type { border-top: none; }
.unread { border-left: 3px solid var(--accent); padding-left: .7rem; border-radius: 3px; background: color-mix(in srgb, var(--accent) 5%, transparent); }
.inline { display: inline; }

table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }

@media (max-width: 700px) {
  .grow2 { grid-column: span 1; }
  .searchbox { margin-left: 0; width: 100%; order: 5; }
  .searchbox input, .searchbox input:focus { width: 100%; min-width: 0; }
  .container { margin-top: 1rem; }
  .card { padding: .95rem 1.05rem; }
}