/* ── Reset & base ────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #f4f6f9;
    --surface: #ffffff;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #f59e0b;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

/* ── Layout ──────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }

.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 32px;
    margin-bottom: 20px;
}

.login-card {
    max-width: 420px;
    margin: 80px auto 0;
    text-align: center;
}
.login-card h1 { font-size: 1.6rem; margin-bottom: 4px; }
.login-card .subtitle { color: var(--text-muted); margin-bottom: 24px; }

/* ── Navbar ──────────────────────────────── */
.navbar {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--surface); padding: 12px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.nav-brand { font-weight: 700; font-size: 1.1rem; color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-user { font-size: .85rem; color: var(--text-muted); }

/* ── Forms ───────────────────────────────── */
.form-group { display: flex; flex-direction: column; margin-bottom: 16px; }
.form-group label { font-size: .85rem; font-weight: 600; margin-bottom: 4px; color: var(--text); }
.form-group input, .form-group select {
    padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius);
    font-size: .95rem; transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-row {
    display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end;
}
.form-row .form-group { flex: 1; min-width: 140px; margin-bottom: 0; }
.form-group-btn { flex: 0 0 auto !important; min-width: auto !important; }

/* ── Buttons ─────────────────────────────── */
.btn {
    display: inline-block; padding: 10px 20px;
    font-size: .95rem; font-weight: 600; border: none; border-radius: var(--radius);
    cursor: pointer; transition: background .15s, opacity .15s;
}
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; width: 100%; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-outline {
    background: transparent; color: var(--danger); border: 1px solid var(--danger);
    padding: 6px 14px; font-size: .85rem;
}
.btn-outline:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: .85rem; }
.btn-secondary {
    background: var(--bg); color: var(--text); border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) { background: var(--border); }

.search-bar .btn-primary { width: auto; }

.load-more-wrap { text-align: center; padding: 16px 0 4px; }

/* ── Table ───────────────────────────────── */
.table-wrapper { overflow-x: auto; }
.table-scroll-wrapper {
    overflow: auto;
    max-height: 420px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.data-table th {
    text-align: left; padding: 10px 12px; background: var(--bg);
    font-weight: 600; color: var(--text-muted); border-bottom: 2px solid var(--border);
    white-space: nowrap;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.data-table tr:hover td { background: #f8fafc; }
.empty-state { text-align: center; color: var(--text-muted); padding: 32px 12px !important; }
.amount { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.totals-row tr {
    background: var(--bg) !important;
    border-top: 2px solid var(--border);
}
.totals-row td { padding: 12px; font-weight: 600; }

/* ── Badges ──────────────────────────────── */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 12px;
    font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
}
.badge-paid { background: #dcfce7; color: var(--success); }
.badge-delivered { background: #dcfce7; color: var(--success); }
.badge-pending { background: #fef3c7; color: #b45309; }
.badge-overdue { background: #fee2e2; color: var(--danger); }
.badge-active { background: #dcfce7; color: var(--success); }
.badge-inactive { background: #e2e8f0; color: var(--text-muted); }

.tenant-actions { white-space: nowrap; }
.tenant-actions .btn { margin-right: 6px; }
.tenant-actions .btn:last-child { margin-right: 0; }

.users-grouped-wrap {
    margin-top: 8px;
    max-height: 560px;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    padding: 12px;
}
.user-group-block {
    margin-bottom: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.user-group-block:last-child { margin-bottom: 0; }
.user-group-block h3 {
    font-size: .95rem;
    font-weight: 700;
    padding: 12px 14px;
    margin: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.user-group-block h3 .tenant-name-muted {
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 8px;
}
.user-group-block .table-scroll-wrapper {
    max-height: 280px;
    border: none;
    border-radius: 0;
}

.tenants-gate {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 16px;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(4px);
}
.tenants-gate.hidden { display: none !important; }
#tenants-app[hidden] { display: none !important; }
#tenants-app:not([hidden]) { display: block; }
.tenants-gate-card {
    max-width: 400px;
    width: 100%;
    margin: 0;
}
.tenants-gate-card h2 { margin-bottom: 8px; }
#tenants-gate-form .btn-primary { width: 100%; margin-top: 4px; }

.api-key-modal {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 16px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(2px);
}
.api-key-modal.hidden { display: none !important; }
.api-key-modal-content { max-width: 520px; width: 100%; margin: 0; }
.api-key-modal-pre {
    margin: 12px 0 16px;
    padding: 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: .88rem;
    word-break: break-all;
    white-space: pre-wrap;
    max-height: 200px;
    overflow: auto;
}
.api-key-modal .btn-primary { width: auto; }

.api-reference pre {
    margin-top: 12px;
    padding: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: .82rem;
    line-height: 1.6;
    overflow-x: auto;
}
.api-reference code { font-size: .9em; }

/* ── Messages ────────────────────────────── */
.error-msg {
    background: #fee2e2; color: var(--danger);
    padding: 10px 14px; border-radius: var(--radius);
    font-size: .9rem; margin-bottom: 16px;
}
.success-msg {
    background: #dcfce7; color: var(--success);
    padding: 10px 14px; border-radius: var(--radius);
    font-size: .9rem; margin-bottom: 16px; text-align: left; line-height: 1.7;
}
.success-msg code {
    background: #f0fdf4; padding: 2px 6px; border-radius: 4px;
    font-weight: 700; font-size: .95rem;
}
.error-text { color: var(--danger) !important; }
.hidden { display: none; }
.results-info { font-size: .85rem; color: var(--text-muted); margin-bottom: 10px; }
.profile-info { margin-bottom: 20px; line-height: 1.8; }
.profile-info p { margin-bottom: 8px; }
.card .subtitle { color: var(--text-muted); font-size: .9rem; margin-bottom: 20px; }
.form-footer { margin-top: 18px; font-size: .88rem; color: var(--text-muted); }
.form-footer a { color: var(--primary); text-decoration: none; font-weight: 600; }
.form-footer a:hover { text-decoration: underline; }

/* ── Responsive ──────────────────────────── */

/* Tablet and below */
@media (max-width: 768px) {
    .container { padding: 16px 12px; }
    .card { padding: 20px 16px; }
    .navbar { padding: 10px 16px; flex-wrap: wrap; gap: 8px; }
    .nav-brand { font-size: 1rem; }
    .nav-user { font-size: .8rem; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .form-row .form-group { min-width: 120px; }
    .table-scroll-wrapper { max-height: 360px; }
    .data-table { font-size: .85rem; }
    .data-table th, .data-table td { padding: 8px 10px; }
}

/* Mobile */
@media (max-width: 640px) {
    .container { padding: 12px 10px; }
    .card { padding: 16px 12px; margin-bottom: 16px; }
    .login-card { margin-top: 24px; padding: 20px 16px; }
    .login-card h1 { font-size: 1.4rem; }
    .form-row { flex-direction: column; gap: 0; }
    .form-row .form-group { min-width: 100%; margin-bottom: 12px; }
    .form-group-btn { width: 100%; }
    .form-group-btn .btn { width: 100%; }
    .search-bar .btn-primary { width: 100%; }
    .navbar { padding: 10px 12px; }
    .nav-right { flex-wrap: wrap; }
    .nav-user { max-width: 100px; font-size: .75rem; }
    .btn-sm { padding: 8px 12px; font-size: .8rem; }
    .table-scroll-wrapper { max-height: 300px; margin: 0 -12px; border-radius: 0; border-left: none; border-right: none; }
    .data-table { font-size: .8rem; min-width: 700px; }
    .data-table th, .data-table td { padding: 6px 8px; }
    .totals-row td { padding: 10px 8px; font-size: .85rem; }
    .load-more-wrap { padding: 12px 0; }
    .load-more-wrap .btn { width: 100%; }
}

/* Small mobile */
@media (max-width: 380px) {
    .container { padding: 10px 8px; }
    .card { padding: 14px 10px; }
    .login-card { margin-top: 16px; }
    .navbar { padding: 8px 10px; }
    .nav-brand { font-size: .95rem; }
}