/* ============================================================
   «Каркас» — CRM керування проєктним виробництвом
   territory ledger:
   1. layout    : sidebar-app (пульт керування виробництвом)
   2. fonts      : IBM Plex Sans (заголовки/числа) + Inter (текст)
   3. color      : slate canvas + teal primary / amber затримка / rose критично / emerald вчасно
   4. radius     : 6–10px, щільно (технічно)
   5. motion     : press scale(.98), fade-up reveal (additive), reduced-motion safe
   6. signature  : Ганта з критичним шляхом + heatmap-портфель + drag-конструктор
   ============================================================ */

:root {
  --canvas: #F1F5F9;
  --surface: #FFFFFF;
  --surface-2: #F8FAFC;
  --slate-900: #0F172A;
  --slate-700: #334155;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;

  --teal: #0D9488;
  --teal-600: #0B7C72;
  --teal-050: #ECFDF9;
  --amber: #F59E0B;
  --amber-050: #FEF6E7;
  --rose: #E11D48;
  --rose-050: #FEF0F3;
  --emerald: #10B981;
  --emerald-050: #ECFDF5;

  --border: #E2E8F0;
  --border-strong: #CBD5E1;

  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 10px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow-md: 0 4px 14px rgba(15,23,42,.08);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.14);

  --ease: cubic-bezier(.23,1,.32,1);
  --sidebar-w: 240px;

  --font-head: "IBM Plex Sans", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Sans", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--canvas);
  color: var(--slate-900);
  font-size: 15px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, .num { font-family: var(--font-head); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.mono { font-variant-numeric: tabular-nums; letter-spacing: -.01em; }

/* ---------- APP SHELL ---------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--slate-900);
  color: #E2E8F0;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sb-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sb-logo {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--teal);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.sb-brand-txt b { font-family: var(--font-head); font-size: 17px; letter-spacing: -.01em; color: #fff; display: block; line-height: 1.1; }
.sb-brand-txt span { font-size: 11px; color: var(--slate-400); }

.sb-nav { padding: 12px 10px; display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sb-sect { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--slate-500); padding: 12px 10px 6px; }
.sb-link {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 11px; border-radius: var(--r-sm);
  color: var(--slate-300); font-size: 14px; font-weight: 500;
  min-height: 40px;
  transition: background .16s var(--ease), color .16s var(--ease);
}
.sb-link svg { width: 18px; height: 18px; flex-shrink: 0; stroke-width: 2; }
@media (hover: hover) {
  .sb-link:hover { background: rgba(255,255,255,.06); color: #fff; }
}
.sb-link.active { background: var(--teal); color: #fff; }
.sb-link.active svg { color: #fff; }

.sb-foot { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: 11px; color: var(--slate-500); }
.sb-foot a { color: var(--teal); }

/* ---------- MAIN ---------- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: clamp(18px, 2.4vw, 22px); margin: 0; letter-spacing: -.02em; }
.topbar .sub { font-size: 13px; color: var(--slate-500); margin-top: 2px; }
.topbar-spacer { flex: 1; }
.chip-ai {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 12px; border-radius: 999px;
  background: var(--teal-050); color: var(--teal-600);
  font-size: 12.5px; font-weight: 600; border: 1px solid #CCFBEF;
}
.chip-ai svg { width: 14px; height: 14px; }
.pill-user {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--slate-900); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  font-family: var(--font-head); flex-shrink: 0;
}
.content { padding: 24px; max-width: 1400px; width: 100%; }

/* mobile top-nav toggle (hidden desktop) */
.mnav-toggle { display: none; }

/* ---------- COMPONENTS ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}
.section-title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--slate-500); margin: 0 0 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; min-height: 44px; border-radius: var(--r-sm);
  font-size: 14px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; background: var(--teal); color: #fff;
  transition: transform .12s var(--ease), background .16s var(--ease), box-shadow .16s var(--ease);
}
.btn svg { width: 16px; height: 16px; }
.btn:active { transform: scale(.98); }
@media (hover: hover) { .btn:hover { background: var(--teal-600); } }
.btn.ghost { background: var(--surface); color: var(--slate-700); border-color: var(--border-strong); }
@media (hover: hover) { .btn.ghost:hover { background: var(--surface-2); } }
.btn.sm { min-height: 36px; padding: 7px 12px; font-size: 13px; }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
  white-space: nowrap;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; }
.b-done    { background: var(--slate-100); color: var(--slate-500); }
.b-done .dot { background: var(--slate-400); }
.b-active  { background: var(--teal-050); color: var(--teal-600); }
.b-active .dot { background: var(--teal); }
.b-ontime  { background: var(--emerald-050); color: #047857; }
.b-ontime .dot { background: var(--emerald); }
.b-risk    { background: var(--amber-050); color: #B45309; }
.b-risk .dot { background: var(--amber); }
.b-overdue { background: var(--rose-050); color: #BE123C; }
.b-overdue .dot { background: var(--rose); }
.b-pending { background: var(--slate-100); color: var(--slate-500); }
.b-pending .dot { background: var(--slate-300); }

.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center; font-size: 11px; font-weight: 700;
  font-family: var(--font-head); color: #fff; background: var(--slate-700);
  flex-shrink: 0;
}
.avatar.sm { width: 24px; height: 24px; font-size: 10px; }
.av-stack { display: flex; }
.av-stack .avatar { margin-left: -7px; border: 2px solid var(--surface); }
.av-stack .avatar:first-child { margin-left: 0; }

/* progress bar */
.pbar { height: 6px; border-radius: 999px; background: var(--slate-200); overflow: hidden; }
.pbar > span { display: block; height: 100%; border-radius: 999px; background: var(--teal); }

/* KPI */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.kpi {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 16px 18px; box-shadow: var(--shadow-sm);
}
.kpi .lbl { font-size: 12.5px; color: var(--slate-500); font-weight: 500; display: flex; align-items: center; gap: 7px; }
.kpi .lbl svg { width: 15px; height: 15px; }
.kpi .val { font-family: var(--font-head); font-size: 30px; font-weight: 600; letter-spacing: -.02em; margin-top: 6px; line-height: 1; }
.kpi .delta { font-size: 12px; margin-top: 7px; color: var(--slate-500); }
.kpi.accent-rose .val { color: var(--rose); }
.kpi.accent-amber .val { color: var(--amber); }
.kpi.accent-emerald .val { color: #059669; }
.kpi.accent-teal .val { color: var(--teal); }

/* generic table */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--slate-500); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--border);
}
.tbl td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
.tbl tr:last-child td { border-bottom: none; }
@media (hover: hover) { .tbl tbody tr:hover { background: var(--surface-2); } }

/* reveal (additive: content visible without JS) */
.reveal { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(10px); }
  .js .reveal.in { opacity: 1; transform: translateY(0); transition: opacity .5s var(--ease), transform .5s var(--ease); }
}

/* ============ MOBILE ============ */
@media (max-width: 900px) {
  .app { flex-direction: column; }
  .sidebar {
    width: 100%; height: auto; position: sticky; top: 0; z-index: 40;
    flex-direction: column;
  }
  .sb-brand { border-bottom: none; }
  .sb-nav {
    flex-direction: row; overflow-x: auto; gap: 4px; padding: 8px 10px;
    border-top: 1px solid rgba(255,255,255,.08);
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
  }
  .sb-nav::-webkit-scrollbar { display: none; }
  .sb-sect { display: none; }
  .sb-link { white-space: nowrap; padding: 8px 12px; }
  .sb-link span { display: inline; }
  .sb-foot { display: none; }
  .content { padding: 16px; }
  .topbar { padding: 12px 16px; }
}
@media (max-width: 640px) {
  body { font-size: 14px; }
  input, select, textarea { font-size: 16px; }
  .kpi .val { font-size: 26px; }
}