:root {
    --accent: #2b59c3;
    --accent-soft: #e9eefb;
    --bg: #f5f6f8;
    --card: #ffffff;
    --line: #e5e7eb;
    --text: #1f2937;
    --muted: #6b7280;
    --danger: #b42318;
    --danger-soft: #fef3f2;
    --ok: #067647;
    --ok-soft: #ecfdf3;
    --warn: #93370d;
    --warn-soft: #fffaeb;
    --radius: 10px;
    --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14.5px/1.5 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.55rem; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0 0 14px; }
code { background: #f3f4f6; padding: 1px 5px; border-radius: 4px; font-size: .92em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.danger { color: var(--danger); }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- raspored ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 240px; flex: 0 0 240px; background: #111827; color: #e5e7eb; display: flex; flex-direction: column; padding: 18px 12px; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 650; padding: 4px 8px 18px; font-size: 1rem; line-height: 1.25; }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: #fff; font-weight: 700; flex: 0 0 32px; }
.sidebar nav { flex: 1; overflow-y: auto; }
.nav-label { text-transform: uppercase; letter-spacing: .08em; font-size: .68rem; color: #6b7280; margin: 18px 10px 6px; }
.nav-link { display: block; padding: 8px 10px; border-radius: 8px; color: #cbd5e1; }
.nav-link:hover { background: #1f2937; color: #fff; text-decoration: none; }
.nav-link.active { background: var(--accent); color: #fff; }
.logout { border-top: 1px solid #1f2937; padding: 12px 8px 0; display: flex; justify-content: space-between; align-items: center; }
.logout .who { color: #9ca3af; font-size: .85rem; }
.logout .link-btn { color: #cbd5e1; }
.main { flex: 1; min-width: 0; }
.topbar { display: none; align-items: center; gap: 12px; background: #111827; color: #fff; padding: 10px 14px; }
.menu-btn { background: none; border: 0; color: #fff; font-size: 1.4rem; cursor: pointer; }
.content { max-width: 1120px; margin: 0 auto; padding: 28px 28px 60px; }

.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- kartice ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 18px; box-shadow: 0 1px 2px rgba(15,23,42,.03); }
.card.narrow { max-width: 560px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.card-head h2 { margin: 0; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.stat-label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 1.55rem; font-weight: 650; margin: 4px 0 2px; letter-spacing: -.01em; }
.stat-sub { color: var(--muted); font-size: .85rem; }

/* ---------- gumbi ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; border-radius: 8px; border: 1px solid #d1d5db; background: #fff; color: var(--text); font: inherit; font-weight: 550; cursor: pointer; text-decoration: none; line-height: 1.2; }
.btn:hover { background: #f9fafb; text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent); filter: brightness(.93); }
.btn-danger { color: var(--danger); border-color: #fecdca; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-sm { padding: 5px 10px; font-size: .85rem; }
.btn-block { width: 100%; padding: 11px 14px; }
.link-btn { background: none; border: 0; padding: 0; color: var(--accent); cursor: pointer; font: inherit; }
.link-btn:hover { text-decoration: underline; }
.icon-btn { width: 28px; height: 28px; border-radius: 6px; border: 0; background: transparent; color: var(--muted); font-size: 1.2rem; cursor: pointer; line-height: 1; }
.icon-btn:hover { background: var(--danger-soft); color: var(--danger); }

/* ---------- obrasci ---------- */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: .82rem; font-weight: 600; color: #374151; margin-bottom: 5px; }
.field small, small { display: block; color: var(--muted); font-size: .8rem; margin-top: 4px; font-weight: 400; }
input[type=text], input[type=email], input[type=password], input[type=search], input[type=number], input[type=date], select, textarea {
    width: 100%; padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 8px; background: #fff; color: var(--text); font: inherit;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
input[type=color] { width: 64px; height: 38px; padding: 2px; border: 1px solid #d1d5db; border-radius: 8px; background: #fff; }
input[type=file] { font: inherit; }
.grid { display: grid; gap: 0 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.check { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.check input { width: auto; }
.inline-pair { display: flex; gap: 6px; align-items: center; }
.inline-pair select { width: auto; }
.inline-label { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: #374151; font-weight: 600; }
.inline-label select, .inline-label input { width: auto; font-weight: 400; }
.w-xs { width: 70px !important; }
.w-sm { max-width: 220px; }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 8px; }
.push-right { margin-left: auto; }
.filters { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.filters input[type=search] { flex: 1; min-width: 200px; width: auto; }
.filters select { width: auto; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.toolbar form { margin: 0; }
.logo-preview { background: #f9fafb; border: 1px dashed #d1d5db; border-radius: 8px; padding: 12px; display: inline-block; margin-bottom: 8px; }
.logo-preview img { max-height: 70px; max-width: 240px; display: block; }

/* ---------- tablice ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--line); font-weight: 600; }
.table td { padding: 11px 10px; border-bottom: 1px solid #f1f2f4; vertical-align: top; }
.table th.num, .table td.num { text-align: right; }
.table tfoot td { border-bottom: 0; color: var(--muted); }
.row-link { cursor: pointer; }
.row-link:hover td { background: #fafbfc; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .76rem; font-weight: 600; background: #f3f4f6; color: #374151; }
.badge-sent { background: #eff6ff; color: #1d4ed8; }
.badge-accepted, .badge-paid { background: var(--ok-soft); color: var(--ok); }
.badge-rejected, .badge-cancelled { background: var(--danger-soft); color: var(--danger); }

.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid; }
.flash ul { margin: 6px 0 0; padding-left: 18px; }
.flash-success { background: var(--ok-soft); border-color: #abefc6; color: var(--ok); }
.flash-error { background: var(--danger-soft); border-color: #fecdca; color: var(--danger); }
.flash-warning { background: var(--warn-soft); border-color: #fedf89; color: var(--warn); }

/* ---------- stavke dokumenta ---------- */
table.items { width: 100%; border-collapse: collapse; min-width: 820px; }
table.items th { text-align: left; font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 6px 6px; border-bottom: 1px solid var(--line); font-weight: 600; }
table.items th.num { text-align: right; }
table.items td { padding: 8px 6px; border-bottom: 1px solid #f1f2f4; vertical-align: top; }
.c-desc { width: auto; }
.c-qty { width: 84px; } .c-unit { width: 70px; } .c-price { width: 112px; } .c-disc { width: 132px; } .c-tax { width: 70px; }
.c-total { width: 112px; padding-top: 14px !important; font-weight: 600; white-space: nowrap; }
.c-del { width: 36px; }
.i-details { margin-top: 6px; }
.items-actions { display: flex; align-items: center; gap: 14px; margin: 12px 0 4px; flex-wrap: wrap; }
.totals-wrap { display: flex; justify-content: space-between; gap: 28px; align-items: flex-start; margin-top: 18px; flex-wrap: wrap; }
.doc-discount { min-width: 240px; }
.totals { min-width: 320px; border-collapse: collapse; }
.totals td { padding: 5px 4px; }
.totals td:first-child { color: #4b5563; padding-right: 28px; }
.totals td.num { text-align: right; white-space: nowrap; }
.totals .vat-cell { padding: 0; }
.totals .vat-cell table { width: 100%; border-collapse: collapse; }
.totals .vat-cell td { padding: 5px 4px; }
.totals .t-total td { border-top: 2px solid var(--text); font-size: 1.15rem; font-weight: 700; padding-top: 9px; color: var(--text); }
.totals .t-total .cur { font-weight: 500; color: var(--muted); }
#doc-form[data-tax-mode="none"] .c-tax,
#doc-form[data-tax-mode="none"] .t-base,
#doc-form[data-tax-mode="none"] .t-vat-rows { display: none; }
.t-itemdisc.is-zero, .t-docdisc.is-zero, .t-gross.is-zero { display: none; }

/* ---------- pregled ---------- */
.preview-frame { background: #e5e7eb; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.preview-frame iframe { width: 100%; height: 1240px; border: 0; display: block; background: #eef0f3; }

/* ---------- gost (prijava) ---------- */
body.guest { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.guest-card { width: 100%; max-width: 400px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 28px; box-shadow: 0 10px 40px rgba(15,23,42,.08); }
.guest-brand { color: var(--text); padding: 0 0 16px; }
.guest-title { font-size: 1.3rem; margin-bottom: 14px; }

/* ---------- mobilni ---------- */
@media (max-width: 900px) {
    .shell { display: block; }
    .topbar { display: flex; }
    .sidebar { position: fixed; z-index: 20; left: 0; top: 0; bottom: 0; transform: translateX(-100%); transition: transform .2s; }
    .sidebar.open { transform: none; }
    .content { padding: 18px 14px 50px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .span-2, .span-3 { grid-column: auto; }
    .preview-frame iframe { height: 900px; }
}