:root {
  --bg: #f4f6fb; --panel: #ffffff; --line: #e5e8f0; --fg: #1a2233; --muted: #6b7488;
  --accent: #3b6cf6; --accent-d: #2f57cc; --ok: #17994f; --warn: #c47f00; --err: #d43a3a;
  --hover: #fafbfe; --radius: 12px;
}
:root[data-theme="dark"] {
  --bg: #0f1420; --panel: #171d2b; --line: #28303f; --fg: #e6e9f0; --muted: #8b93a7;
  --accent: #5b86ff; --accent-d: #4670e6; --ok: #35c46f; --warn: #e0a53a; --err: #ef5b5b;
  --hover: #1e2635;
}
:root[data-theme="dark"] input, :root[data-theme="dark"] select, :root[data-theme="dark"] textarea { background: #0e1420; }
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.55 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; border-radius: 8px; padding: 8px 14px; background: var(--accent); color: #fff; }
button:hover { background: var(--accent-d); }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--fg); }
button.ghost:hover { background: var(--hover); }
button.sm { padding: 4px 9px; font-size: 12.5px; }
button.danger { background: transparent; border: 1px solid var(--err); color: var(--err); }
button.danger:hover { background: #fdecec; }
input, select, textarea { width: 100%; font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--fg); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); }
th { font-size: 12px; color: var(--muted); font-weight: 600; }
tr:hover td { background: var(--hover); }
.right { text-align: right; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; }
.login-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; width: 360px; box-shadow: 0 10px 40px #0000000d; }
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p { margin: 0 0 20px; color: var(--muted); }

/* Layout */
.app { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar { background: #0f1830; color: #cdd6ea; padding: 18px 12px; }
.sidebar .brand { font-size: 16px; font-weight: 700; color: #fff; padding: 6px 10px 16px; }
.nav a { display: block; padding: 9px 12px; border-radius: 8px; color: #cdd6ea; margin-bottom: 2px; }
.nav a:hover { background: #1b2647; }
.nav a.active { background: var(--accent); color: #fff; }
.nav .sep { border-top: 1px solid #24304f; margin: 10px 4px; }
.main { padding: 22px 26px; }
.topbar { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.topbar h2 { margin: 0; font-size: 20px; flex: 1; }
.topbar select { width: auto; min-width: 180px; }
.usermenu { font-size: 13px; color: var(--muted); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.card h3 { margin: 0 0 14px; font-size: 15px; }
.grid { display: grid; gap: 12px; }
.grid.c2 { grid-template-columns: 1fr 1fr; }
.grid.c3 { grid-template-columns: 1fr 1fr 1fr; }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .app { grid-template-columns: 1fr; } .sidebar { display: none; } .grid.c2,.grid.c3,.grid.c4 { grid-template-columns: 1fr; } }

.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.kpi .label { color: var(--muted); font-size: 12px; }
.kpi .value { font-size: 24px; font-weight: 700; margin-top: 4px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.st-draft { background: #eceff5; color: #59617a; }
.st-sent { background: #e5efff; color: #2f57cc; }
.st-paid, .st-accepted { background: #e3f6ea; color: var(--ok); }
.st-partial { background: #fff2da; color: var(--warn); }
.st-overdue, .st-refused, .st-cancelled { background: #fdecec; color: var(--err); }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; }
.toolbar .spacer { flex: 1; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.tabs button { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.items th, .items td { padding: 6px 6px; }
.items input, .items select { padding: 6px 8px; }
.totbox { max-width: 320px; margin-left: auto; }
.totbox .row { display: flex; justify-content: space-between; padding: 4px 0; }
.totbox .row.big { font-size: 17px; font-weight: 700; border-top: 2px solid var(--fg); margin-top: 6px; padding-top: 8px; }

/* Modal */
.modal-bg { position: fixed; inset: 0; background: #0009; display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal { background: var(--panel); border-radius: var(--radius); width: min(640px, 96vw); max-height: 92vh; overflow: auto; }
.modal header { padding: 16px 18px; border-bottom: 1px solid var(--line); font-weight: 700; }
.modal .body { padding: 18px; }
.modal footer { padding: 14px 18px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }

#toast { position: fixed; bottom: 20px; right: 20px; z-index: 100; display: flex; flex-direction: column; gap: 8px; }
.toast { background: #111a30; color: #fff; padding: 10px 16px; border-radius: 8px; box-shadow: 0 6px 20px #0003; }
.toast.err { background: var(--err); }
.toast.ok { background: var(--ok); }
.muted { color: var(--muted); }
.tpl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 700px) { .tpl-grid { grid-template-columns: repeat(2, 1fr); } }
.tpl { border: 2px solid var(--line); border-radius: 10px; padding: 8px; cursor: pointer; text-align: center; background: var(--panel); transition: border-color .15s; }
.tpl:hover { border-color: var(--muted); }
.tpl.sel { border-color: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 25%, transparent); }
.tpl-thumb { background: #fff; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.tpl-thumb svg { display: block; width: 100%; height: auto; }
.tpl-name { margin-top: 6px; font-size: 13px; font-weight: 600; }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 120px; }
.bars .bar { flex: 1; background: var(--accent); border-radius: 4px 4px 0 0; min-height: 2px; position: relative; }
.bars .bar span { position: absolute; bottom: -18px; left: 0; right: 0; text-align: center; font-size: 10px; color: var(--muted); }