/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
    --primary: #1a56db;
    --primary-dark: #1e429f;
    --primary-light: #3f83f8;
    --primary-50: #eff6ff;
    --primary-100: #e1effe;
    --secondary: #047481;

    --gray-50: #f9fafb;
    --gray-100: #f1f4f9;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-600: #4b5563;

    --bg: #f6f8fb;
    --surface: #ffffff;
    --border: #e5e7eb;
    --text: #111928;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;

    --success: #057a55;
    --success-bg: #def7ec;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --error: #dc2626;
    --error-bg: #fdf2f2;
    --info: #0284c7;
    --info-bg: #e0f2fe;

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-full: 999px;

    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
    --shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.12);

    --sidebar-w: 248px;
    --transition: 120ms ease;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text);
}

h1, h2, h3 { font-weight: 650; letter-spacing: -0.01em; }
h2 { margin: 0 0 4px; font-size: 19px; }
h3 { margin: 0 0 4px; font-size: 14px; }
a { color: var(--primary); }

svg { stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
svg.icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ==========================================================================
   Environment banner
   ========================================================================== */
.env-banner {
    background: var(--error);
    color: white;
    text-align: center;
    padding: 7px 12px;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.02em;
}

/* ==========================================================================
   App shell: sidebar + main
   ========================================================================== */
.app-shell {
    display: flex;
    align-items: stretch;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 20px 16px;
}

.sidebar-brand-mark {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
}

.sidebar-brand-text .name { font-size: 14px; font-weight: 650; color: var(--text); line-height: 1.2; }
.sidebar-brand-text .sub { font-size: 11.5px; color: var(--text-tertiary); }

.sidebar-nav {
    flex: 1;
    padding: 4px 12px;
    overflow-y: auto;
}

.sidebar-section-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    font-weight: 650;
    padding: 14px 12px 6px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 12px;
    margin-bottom: 2px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.sidebar-link svg { color: var(--text-tertiary); transition: color var(--transition); }

.sidebar-link:hover { background: var(--gray-50); color: var(--text); }
.sidebar-link:hover svg { color: var(--text-secondary); }

.sidebar-link.active { background: var(--primary-100); color: var(--primary-dark); font-weight: 650; }
.sidebar-link.active svg { color: var(--primary); }

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border);
}

.sidebar-footer form { margin: 0; }

.sidebar-footer .sidebar-link {
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    font: inherit;
    text-align: left;
}

.sidebar-footer .sidebar-link:hover { background: var(--error-bg); color: var(--error); }
.sidebar-footer .sidebar-link:hover svg { color: var(--error); }

.main {
    flex: 1;
    min-width: 0;
    padding: 32px 36px 60px;
}

.main-inner {
    max-width: 980px;
    margin: 0 auto;
}

.main-inner.wide { max-width: 1120px; }
.main-inner.narrow { max-width: 640px; }

/* ==========================================================================
   Breadcrumb + page header
   ========================================================================== */
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    margin-bottom: 14px;
    transition: color var(--transition);
}

.breadcrumb:hover { color: var(--primary); }
.breadcrumb svg { width: 15px; height: 15px; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 22px;
}

.page-header h1 {
    margin: 0;
    font-size: 24px;
}

.page-header .page-subtitle {
    margin: 4px 0 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.page-header-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    align-items: center;
}

/* ==========================================================================
   Cards / sections
   ========================================================================== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.card + .card { margin-top: 20px; }

.card-table { padding: 0; overflow: hidden; }
.card-table .empty-state { padding: 48px 20px; }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.card-header-text { display: flex; align-items: center; gap: 10px; }

.card-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--primary-50);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 13.5px;
    margin: 6px 0 18px;
    max-width: 62ch;
}

.card-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-shrink: 0;
}

hr.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ==========================================================================
   Forms
   ========================================================================== */
label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    margin-top: 14px;
}

.form-grid label { margin-top: 0; }

input[type=text], input[type=tel], input[type=email], input[type=number], input[type=date], input[type=password], select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-100);
}

input[type=file] {
    display: block;
    width: 100%;
    padding: 10px 0;
    font-size: 14px;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.checkbox-row input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--primary); }
.checkbox-row label { margin: 0; font-size: 14px; font-weight: 500; color: var(--text); }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 16px;
}

.form-grid .span-2 { grid-column: 1 / -1; }

@media (max-width: 720px) {
    .form-grid { grid-template-columns: 1fr; }
}

.form-section-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin: 22px 0 2px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.form-section-title:first-child { border-top: none; padding-top: 0; margin-top: 0; }

.hint { color: var(--text-secondary); font-size: 13px; margin-top: 4px; line-height: 1.5; }

.form-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    white-space: nowrap;
}

button:active, .btn:active { transform: translateY(1px); }

/* default bare <button> and legacy .primary / input[submit] → primary style */
button, button.primary, input[type=submit], .btn-link, .btn-primary {
    width: auto;
    background: var(--primary);
    color: white;
}

button:hover, button.primary:hover, input[type=submit]:hover, .btn-link:hover, .btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
}

.btn-secondary:hover { background: var(--gray-50); border-color: var(--gray-300); }

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover { background: #9b1c1c; }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover { background: var(--gray-50); color: var(--text); }

.btn-sm { padding: 7px 12px; font-size: 13px; }

form.inline { display: inline; }
form.inline-block { display: inline-block; }

/* ==========================================================================
   Tables
   ========================================================================== */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; margin-top: 4px; font-size: 14px; }

th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); }

thead th {
    color: var(--text-tertiary);
    font-weight: 650;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--gray-50);
    border-bottom: 1px solid var(--border);
}

thead th:first-child { border-top-left-radius: var(--radius-sm); }
thead th:last-child { border-top-right-radius: var(--radius-sm); }

tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--gray-50); }
tbody tr:last-child td { border-bottom: none; }

table a { text-decoration: none; font-weight: 600; }
table a:hover { text-decoration: underline; }

/* ==========================================================================
   Avatars
   ========================================================================== */
.avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--primary-100);
    color: var(--primary-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12.5px;
    flex-shrink: 0;
}

.name-cell { display: flex; align-items: center; gap: 10px; }

/* ==========================================================================
   Badges / status pills
   ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px 4px 8px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 650;
}

.badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.status-active, .badge-success { background: var(--success-bg); color: var(--success); }
.status-inactive, .badge-neutral { background: var(--gray-100); color: var(--text-secondary); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-error { background: var(--error-bg); color: var(--error); }
.badge-info { background: var(--info-bg); color: var(--info); }

/* ==========================================================================
   Alerts
   ========================================================================== */
.alert {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    line-height: 1.5;
    margin-top: 14px;
    border: 1px solid transparent;
}

.alert svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 1px; }

.error, .alert-error { background: var(--error-bg); color: #9b1c1c; border-color: #f8b4b4; }
.success, .alert-success { background: var(--success-bg); color: var(--success); border-color: #bcf0da; }
.alert-info { background: var(--info-bg); color: #026aa2; border-color: #bae6fd; }

/* legacy .error/.success used without the alert flex wrapper */
p.error, p.success, div.error, div.success { display: block; }

/* ==========================================================================
   Empty state
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-secondary);
}

.empty-state svg {
    width: 40px;
    height: 40px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.empty-state .title { font-weight: 650; color: var(--text); margin-bottom: 4px; font-size: 14.5px; }
.empty-state .sub { font-size: 13.5px; }

/* legacy simple empty text (kept for any un-migrated spot) */
.empty { color: var(--text-secondary); padding: 20px 0; text-align: center; }

/* ==========================================================================
   Filter bar
   ========================================================================== */
.filter-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.filter-bar .search-input { position: relative; flex: 1; min-width: 200px; }
.filter-bar .search-input svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    width: 16px;
    height: 16px;
}
.filter-bar .search-input input { padding-left: 34px; }

.filter-bar select { width: auto; }

/* ==========================================================================
   Flat / member rows (society detail)
   ========================================================================== */
.block-group + .block-group { margin-top: 22px; }

.block-group-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.block-group-title .count { color: var(--text-tertiary); font-weight: 500; text-transform: none; letter-spacing: 0; }

.flat-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
}

.flat-card + .flat-card { margin-top: 12px; }

.flat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.flat-card-header .flat-name { font-weight: 650; font-size: 14.5px; }

.member-chip-list { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }

.member-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    padding: 6px 0;
}

.member-chip .avatar { width: 26px; height: 26px; font-size: 11px; }

.subsection-label {
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
    margin: 14px 0 8px;
}

.admin-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.admin-row:last-child { border-bottom: none; }

.admin-edit-form {
    display: flex;
    flex: 1;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    min-width: 260px;
}

.admin-edit-form input {
    flex: 1;
    min-width: 120px;
    padding: 8px 10px;
    font-size: 13px;
}

/* ==========================================================================
   Login
   ========================================================================== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 20% 15%, var(--primary-light) 0%, var(--primary) 45%, var(--primary-dark) 100%);
    padding: 20px;
}

.login-wrap .card {
    width: 380px;
    box-shadow: var(--shadow-lg);
    border: none;
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}

.login-brand .sidebar-brand-mark { width: 42px; height: 42px; font-size: 18px; }
.login-brand .name { font-size: 16px; font-weight: 700; }
.login-brand .sub { font-size: 12.5px; color: var(--text-tertiary); }

.otp-input {
    letter-spacing: 0.5em;
    text-align: center;
    font-size: 20px;
    font-weight: 650;
}

/* ==========================================================================
   Standalone document pages (bill / receipt) — kept deliberately plain/print-safe
   ========================================================================== */
.doc-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.doc-topbar .brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 14.5px; }
.doc-topbar .sidebar-brand-mark { width: 28px; height: 28px; font-size: 12px; }

.bill-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0;
}

.bill-box { border: 1px solid #333; max-width: 800px; margin: 0 auto; font-size: 14px; background: var(--surface); }
.bill-box .bill-header { text-align: center; padding: 14px; border-bottom: 1px solid #333; }
.bill-box .bill-header h2 { margin: 0 0 4px; font-size: 18px; }
.bill-box .bill-header p { margin: 2px 0; font-size: 12px; }
.bill-title { text-align: center; font-weight: bold; padding: 8px; border-bottom: 1px solid #333; letter-spacing: 0.04em; }
table.bill-table { width: 100%; border-collapse: collapse; }
table.bill-table td, table.bill-table th { border: 1px solid #333; padding: 6px 8px; font-size: 13px; }
.charges-table { width: 100%; border-collapse: collapse; margin-top: 0; }
.charges-table td, .charges-table th { border: 1px solid #333; padding: 6px 8px; font-size: 13px; }
.totals-table { width: 100%; border-collapse: collapse; }
.totals-table td { border: 1px solid #333; padding: 5px 8px; font-size: 13px; }
.totals-table td:last-child { text-align: right; }
.amount-words { padding: 10px; border-top: 1px solid #333; font-weight: bold; font-size: 13px; }
.bank-details { padding: 10px; border-top: 1px solid #333; font-size: 12px; }
.bill-footer { padding: 10px; text-align: center; font-size: 11px; border-top: 1px solid #333; color: #555; }

@media print {
    .no-print { display: none; }
    body { background: white; }
    .bill-box { border-color: #000; }
}

/* ==========================================================================
   Misc / containers (legacy pages not yet migrated to .main)
   ========================================================================== */
.container { max-width: 720px; margin: 40px auto; padding: 0 20px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 860px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: relative; flex-direction: row; align-items: center; padding: 8px 4px; }
    .sidebar-brand { padding: 8px 12px; }
    .sidebar-nav { display: flex; flex: 1; padding: 0 4px; overflow-x: auto; }
    .sidebar-section-label { display: none; }
    .sidebar-link { white-space: nowrap; }
    .sidebar-footer { border-top: none; border-left: 1px solid var(--border); }
    .main { padding: 20px 16px 40px; }
    .page-header { flex-direction: column; align-items: stretch; }
}