/* ═══════════════════════════════════════════════════════════════════════════
   Mimpi Invoicing — Design System
   Based on Impeccable (impeccable.style) guidelines
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --font-body: 'Instrument Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'Space Grotesk', 'SF Mono', monospace;
    --color-ink: #1a1a1a;
    --color-paper: #fafafa;
    --color-surface: #fff;
    --color-mist: #e5e5e5;
    --color-ash: #737373;
    --color-accent: #d946ef;
    --color-accent-soft: rgba(217, 70, 239, 0.08);
    --color-success: #16a34a;
    --color-warning: #ca8a04;
    --color-danger: #dc2626;
    --color-info: #2563eb;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.08);
}

/* Light theme only — no dark mode */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-body); background: var(--color-paper); color: var(--color-ink); font-size: 0.875rem; line-height: 1.5; -webkit-font-smoothing: antialiased; }

/* ─── Layout ────────────────────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #1a1a1a; color: #fafafa; flex-shrink: 0; position: fixed; top: 0; bottom: 0; overflow-y: auto; }
.main { margin-left: 220px; flex: 1; padding: 2rem; min-width: 0; max-width: 1200px; }

/* ─── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar-brand { padding: 1.5rem 1.25rem 1.25rem; font-size: 0.9375rem; font-weight: 600; font-family: var(--font-mono); border-bottom: 1px solid rgba(255,255,255,0.08); letter-spacing: -0.01em; }
.sidebar-brand small { display: block; font-size: 0.6875rem; font-weight: 400; font-family: var(--font-body); color: rgba(255,255,255,0.35); margin-top: 0.25rem; text-transform: uppercase; letter-spacing: 0.1em; }
.sidebar-nav { padding: 0.75rem 0; }
.sidebar-nav a { display: flex; align-items: center; gap: 0.625rem; padding: 0.5rem 1.25rem; color: rgba(255,255,255,0.5); text-decoration: none; font-size: 0.8125rem; font-weight: 500; transition: all 0.15s; }
.sidebar-nav a:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.04); }
.sidebar-nav a.active { color: #fff; background: rgba(217,70,239,0.15); border-right: 2px solid var(--color-accent); }
.sidebar-nav .nav-icon { width: 20px; height: 20px; flex-shrink: 0; opacity: 0.6; }
.sidebar-nav a.active .nav-icon { opacity: 1; }
.sidebar-footer { position: absolute; bottom: 0; left: 0; right: 0; padding: 1rem 1.25rem; border-top: 1px solid rgba(255,255,255,0.06); }
.sidebar-footer a { color: rgba(255,255,255,0.3); text-decoration: none; font-size: 0.75rem; letter-spacing: 0.05em; }
.sidebar-footer a:hover { color: rgba(255,255,255,0.7); }

/* ─── Page Header ───────────────────────────────────────────────────────────── */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-mist); }
.page-header h1 { font-size: 1.5rem; font-weight: 600; color: var(--color-ink); letter-spacing: -0.02em; }

/* ─── Stat Cards ────────────────────────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.75rem; margin-bottom: 2rem; }
.stat-card { background: var(--color-surface); padding: 1.25rem; border-radius: var(--radius-md); border: 1px solid var(--color-mist); }
.stat-card .stat-label { font-size: 0.6875rem; font-weight: 600; color: var(--color-ash); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.375rem; }
.stat-card .stat-value { font-size: 1.5rem; font-weight: 700; color: var(--color-ink); font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat-card .stat-sub { font-size: 0.75rem; color: var(--color-ash); margin-top: 0.25rem; }

/* ─── Filters ───────────────────────────────────────────────────────────────── */
.filters { background: var(--color-surface); padding: 1rem 1.25rem; border-radius: var(--radius-md); margin-bottom: 1.25rem; display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: end; border: 1px solid var(--color-mist); }
.filter-group { display: flex; flex-direction: column; gap: 0.25rem; }
.filter-group label { font-size: 0.6875rem; font-weight: 600; color: var(--color-ash); text-transform: uppercase; letter-spacing: 0.1em; }
.filter-group input, .filter-group select { padding: 0.5rem 0.75rem; border: 1px solid var(--color-mist); border-radius: var(--radius-sm); font-size: 0.8125rem; background: var(--color-paper); color: var(--color-ink); font-family: var(--font-body); transition: border-color 0.15s; }
.filter-group input:focus, .filter-group select:focus { outline: none; border-color: var(--color-accent); }

/* ─── Buttons ───────────────────────────────────────────────────────────────── */
.btn { padding: 0.5rem 1rem; border: none; border-radius: var(--radius-sm); cursor: pointer; font-size: 0.8125rem; text-decoration: none; display: inline-block; font-weight: 600; font-family: var(--font-body); transition: all 0.15s; letter-spacing: 0.01em; }
.btn-primary { background: #1a1a1a; color: #fafafa; }
.btn-primary:hover { opacity: 0.85; }
.btn-outline { background: transparent; border: 1px solid var(--color-mist); color: var(--color-ash); }
.btn-outline:hover { border-color: var(--color-ink); color: var(--color-ink); }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.75rem; }

/* ─── Tables ────────────────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--color-surface); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-mist); }
th { background: var(--color-paper); text-align: left; padding: 0.75rem 1rem; font-size: 0.6875rem; text-transform: uppercase; color: var(--color-ash); font-weight: 600; letter-spacing: 0.1em; white-space: nowrap; border-bottom: 1px solid var(--color-mist); }
th a { color: var(--color-ash); text-decoration: none; }
th a:hover { color: var(--color-accent); }
th a.active { color: var(--color-accent); }
td { padding: 0.75rem 1rem; font-size: 0.8125rem; border-bottom: 1px solid var(--color-mist); }
tbody tr { transition: background 0.1s; }
tbody tr:hover td { background: var(--color-accent-soft); }
tbody tr:last-child td { border-bottom: none; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--color-ash); }
.font-mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

/* ─── Badges ────────────────────────────────────────────────────────────────── */
.badge { display: inline-block; padding: 2px 8px; border-radius: var(--radius-sm); font-size: 0.625rem; font-weight: 600; color: #fff; letter-spacing: 0.08em; text-transform: uppercase; }

.group-badge { display: inline-block; padding: 1px 6px; border-radius: 3px; font-size: 0.625rem; font-weight: 600; letter-spacing: 0.05em; }
.group-mimpi { background: rgba(37,99,235,0.08); color: var(--color-info); }
.group-leadset { background: rgba(202,138,4,0.1); color: var(--color-warning); }
.group-gesbon { background: rgba(6,182,212,0.1); color: #0e7490; }

/* ─── Links ─────────────────────────────────────────────────────────────────── */
a.link { color: var(--color-accent); text-decoration: none; font-weight: 500; }
a.link:hover { text-decoration: underline; }

/* ─── Pagination ────────────────────────────────────────────────────────────── */
.pagination { display: flex; gap: 4px; margin-top: 1.5rem; justify-content: center; align-items: center; }
.pagination a, .pagination span { padding: 0.375rem 0.75rem; border-radius: var(--radius-sm); text-decoration: none; font-size: 0.8125rem; font-family: var(--font-mono); }
.pagination a { background: var(--color-surface); color: var(--color-ink); border: 1px solid var(--color-mist); }
.pagination a:hover { border-color: var(--color-accent); }
.pagination .current { background: #1a1a1a; color: #fafafa; border: 1px solid #1a1a1a; }
.pagination .dots { color: var(--color-ash); }

/* ─── Summary ───────────────────────────────────────────────────────────────── */
.summary { font-size: 0.75rem; color: var(--color-ash); margin-bottom: 0.75rem; font-weight: 500; letter-spacing: 0.02em; }

/* ─── Detail Pages ──────────────────────────────────────────────────────────── */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 2rem; }
.detail-card { background: var(--color-surface); padding: 1.25rem; border-radius: var(--radius-md); border: 1px solid var(--color-mist); }
.detail-card h3 { font-size: 0.8125rem; font-weight: 600; color: var(--color-ink); margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--color-mist); }
.detail-row { display: flex; justify-content: space-between; padding: 0.375rem 0; font-size: 0.8125rem; }
.detail-row .label { color: var(--color-ash); }
.detail-row .value { color: var(--color-ink); font-weight: 500; }

/* ─── Login ─────────────────────────────────────────────────────────────────── */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--color-paper); }
.login-box { background: var(--color-surface); padding: 2.5rem; border-radius: var(--radius-lg); border: 1px solid var(--color-mist); width: 100%; max-width: 360px; }
.login-box h1 { font-size: 1.25rem; color: var(--color-ink); margin-bottom: 0.25rem; font-weight: 600; letter-spacing: -0.02em; }
.login-box p { font-size: 0.8125rem; color: var(--color-ash); margin-bottom: 1.5rem; }
.login-box label { font-size: 0.6875rem; font-weight: 600; color: var(--color-ash); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.375rem; display: block; }
.login-box input { width: 100%; padding: 0.625rem 0.875rem; border: 1px solid var(--color-mist); border-radius: var(--radius-sm); font-size: 0.875rem; background: var(--color-paper); color: var(--color-ink); margin-bottom: 1rem; font-family: var(--font-body); }
.login-box input:focus { outline: none; border-color: var(--color-accent); }
.login-box button { width: 100%; padding: 0.625rem; background: #1a1a1a; color: #fafafa; border: none; border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 600; cursor: pointer; font-family: var(--font-body); }
.login-box button:hover { opacity: 0.85; }
.login-error { background: rgba(220,38,38,0.06); color: var(--color-danger); padding: 0.625rem 0.875rem; border-radius: var(--radius-sm); margin-bottom: 1rem; font-size: 0.8125rem; border: 1px solid rgba(220,38,38,0.15); }

/* ─── Alert Boxes ───────────────────────────────────────────────────────────── */
.error-box { background: rgba(220,38,38,0.06); color: var(--color-danger); padding: 0.875rem 1.125rem; border-radius: var(--radius-md); margin-bottom: 1.25rem; font-size: 0.8125rem; border: 1px solid rgba(220,38,38,0.15); }
.success-box { background: rgba(22,163,74,0.06); color: var(--color-success); padding: 0.75rem 1.125rem; border-radius: var(--radius-md); margin-bottom: 1.25rem; font-size: 0.8125rem; border: 1px solid rgba(22,163,74,0.15); }

/* ─── Section Headings ──────────────────────────────────────────────────────── */
.section-heading { font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--color-ink); }
.section-heading.mt { margin-top: 2rem; }

/* ─── Empty State ───────────────────────────────────────────────────────────── */
.empty-state { padding: 3rem !important; color: var(--color-ash); }

/* ─── Gap Warning ───────────────────────────────────────────────────────────── */
.gap-warning { background: rgba(220,38,38,0.04); border: 1px solid rgba(220,38,38,0.15); border-radius: var(--radius-md); padding: 1rem 1.25rem; margin-bottom: 1.25rem; }
.gap-warning summary { cursor: pointer; font-size: 0.8125rem; font-weight: 600; color: var(--color-danger); list-style: none; }
.gap-warning summary::-webkit-details-marker { display: none; }
.gap-warning-table { width: 100%; border-collapse: collapse; margin-top: 0.75rem; }
.gap-warning-table th { text-align: left; padding: 0.375rem 0.75rem; font-size: 0.6875rem; text-transform: uppercase; color: var(--color-danger); border-bottom: 1px solid rgba(220,38,38,0.15); letter-spacing: 0.1em; }
.gap-warning-table td { padding: 0.375rem 0.75rem; font-size: 0.8125rem; color: var(--color-danger); border-bottom: 1px solid rgba(220,38,38,0.08); }

/* ─── Create Forms ──────────────────────────────────────────────────────────── */
.create-form .field { margin-bottom: 1rem; }
.create-form .field label { display: block; font-size: 0.6875rem; font-weight: 600; color: var(--color-ash); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.375rem; }
.create-form .field input,
.create-form .field select,
.create-form .field textarea { width: 100%; padding: 0.625rem 0.875rem; border: 1px solid var(--color-mist); border-radius: var(--radius-sm); font-size: 0.8125rem; background: var(--color-paper); color: var(--color-ink); font-family: var(--font-body); transition: border-color 0.15s; }
.create-form .field input:focus,
.create-form .field select:focus,
.create-form .field textarea:focus { outline: none; border-color: var(--color-accent); }
.create-form .field textarea { resize: vertical; }
.create-form .row { display: flex; gap: 0.75rem; }
.create-form .row > * { flex: 1; }

.inv-number-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: #1a1a1a; color: #fafafa; padding: 0.5rem 1.25rem; border-radius: var(--radius-sm); margin-bottom: 1.25rem; }
.inv-number-badge .num-label { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.6; }
.inv-number-badge .num-value { font-size: 1.25rem; font-weight: 700; font-family: var(--font-mono); letter-spacing: -0.02em; }

.line-items-card { background: var(--color-surface); border-radius: var(--radius-md); border: 1px solid var(--color-mist); padding: 0; margin-bottom: 1.25rem; overflow: hidden; }
.line-items-card h3 { padding: 1rem 1.25rem 0.75rem; margin: 0; font-size: 0.8125rem; font-weight: 600; color: var(--color-ink); border-bottom: 1px solid var(--color-mist); }
.line-items-card table { margin: 0; border: none; border-radius: 0; }
.line-items-card table th { background: var(--color-paper); }

.li-input { width: 100%; padding: 0.5rem 0.625rem; border: 1px solid var(--color-mist); border-radius: var(--radius-sm); font-size: 0.8125rem; background: var(--color-surface); color: var(--color-ink); font-family: var(--font-body); transition: border-color 0.15s; }
.li-input:focus { outline: none; border-color: var(--color-accent); }
.li-input-right { text-align: right; }
.li-input-center { text-align: center; }
.li-select { width: 100%; padding: 0.5rem 0.625rem; border: 1px solid var(--color-mist); border-radius: var(--radius-sm); font-size: 0.8125rem; background: var(--color-surface); color: var(--color-ink); cursor: pointer; font-family: var(--font-body); }

.btn-remove-row { background: none; border: 1px solid transparent; color: var(--color-mist); cursor: pointer; font-size: 1.1rem; width: 2rem; height: 2rem; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; transition: all 0.15s; }
.btn-remove-row:hover { color: var(--color-danger); background: rgba(220,38,38,0.06); border-color: rgba(220,38,38,0.15); }

.line-total-cell { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; color: var(--color-ink); }
.totals-row { background: var(--color-paper); }
.totals-row td { padding: 0.875rem 1rem !important; }

.add-line-btn { margin: 0.75rem 1.25rem 1.125rem; padding: 0.5rem 1rem; border: 1px dashed var(--color-mist); background: transparent; border-radius: var(--radius-sm); color: var(--color-ash); font-size: 0.8125rem; cursor: pointer; transition: all 0.15s; font-weight: 500; font-family: var(--font-body); }
.add-line-btn:hover { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-soft); }

.submit-bar { display: flex; gap: 0.75rem; align-items: center; padding: 1.25rem 0; }
.submit-bar .btn-primary { padding: 0.75rem 1.75rem; font-size: 0.875rem; font-weight: 600; border-radius: var(--radius-sm); }

/* ─── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .sidebar { display: none; }
    .main { margin-left: 0; padding: 1.25rem; }
    .detail-grid { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr 1fr; }
}