/* ==========================================================================
   Unisoft Admin Panel — base theme.
   Dark surfaces + saffron accent (spec Part 6). Bootstrap 5.3 customizations.
   ========================================================================== */

:root {
    --bg-primary:    #2C2C2C;
    --bg-secondary:  #3A3A3A;
    --bg-tertiary:   #1F1F1F;

    --saffron:        #FF9933;
    --saffron-hover:  #E68A2E;
    --saffron-light:  #FFB366;
    --saffron-rgb:    255, 153, 51;

    --text-primary:   #F5F5F5;
    --text-secondary: #A0A0A0;
    --text-muted:     #6C6C6C;

    --border:         #4A4A4A;
    --border-light:   #5C5C5C;

    --success: #4CAF50;
    --warning: #FFC107;
    --danger:  #F44336;
    --info:    #2196F3;
}

/* ---------- Base ---------- */

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

a {
    color: var(--saffron);
    text-decoration: none;
}
a:hover {
    color: var(--saffron-hover);
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 { color: var(--saffron); }

.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-muted)     !important; }

code {
    color: var(--saffron-light);
    background: rgba(var(--saffron-rgb), 0.08);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-size: 0.9em;
}
hr { border-color: var(--border); opacity: 0.6; }

/* ---------- Forms ---------- */

.form-control,
.form-select {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.form-control:focus,
.form-select:focus {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--saffron);
    box-shadow: 0 0 0 0.2rem rgba(var(--saffron-rgb), 0.25);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control.is-invalid,
.form-select.is-invalid    { border-color: var(--danger); }
.invalid-feedback          { color: var(--danger); }
.form-label                { color: var(--text-primary); font-weight: 500; }
.form-text                 { color: var(--text-secondary); }

/* ---------- Buttons ---------- */

.btn-saffron,
.btn-primary {
    background-color: var(--saffron);
    border-color: var(--saffron);
    color: #fff;
    font-weight: 500;
}
.btn-saffron:hover,
.btn-saffron:focus,
.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--saffron-hover);
    border-color: var(--saffron-hover);
    color: #fff;
    box-shadow: 0 0 0 0.2rem rgba(var(--saffron-rgb), 0.25);
}
.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border);
    background: transparent;
}
.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-light);
}

/* ---------- Alerts (flash) ---------- */

.alert {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-left-width: 4px;
}
.alert-success { border-left-color: var(--success); }
.alert-danger  { border-left-color: var(--danger);  }
.alert-warning { border-left-color: var(--warning); }
.alert-info    { border-left-color: var(--info);    }
.alert .btn-close {
    filter: invert(1) grayscale(100%) brightness(2);
}

/* ---------- Cards ---------- */

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
}
.card-header,
.card-footer {
    background: var(--bg-tertiary);
    border-color: var(--border);
}

/* ==========================================================================
   Auth layout (login / forgot / reset)
   ========================================================================== */

.auth-bg {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.auth-brand {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}
.auth-brand h1 {
    color: var(--saffron);
    font-size: 1.5rem;
    margin: 0;
    letter-spacing: 0.6px;
    font-weight: 700;
}
.auth-brand .subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}
.auth-title {
    color: var(--text-primary);
    font-size: 1.125rem;
    text-align: center;
    margin: 0 0 0.25rem;
}
.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
    margin: 0 0 1.25rem;
}
.auth-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    line-height: 1.6;
}
.auth-meta-link {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.875rem;
}
.auth-meta-link a { color: var(--text-secondary); }
.auth-meta-link a:hover { color: var(--saffron); }

/* ==========================================================================
   Error pages (403 / 404 / 500)
   ========================================================================== */

.error-page {
    text-align: center;
    padding: 0.5rem 0 1rem;
}
.error-page .code {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--saffron);
    line-height: 1;
    margin: 0;
    letter-spacing: 1px;
}
.error-page .glyph {
    font-size: 2.5rem;
    color: var(--saffron-light);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.error-page h3 {
    color: var(--text-primary);
    margin: 0.75rem 0 0.5rem;
    font-size: 1.25rem;
}
.error-page p { color: var(--text-secondary); margin-bottom: 1rem; }
.error-page .meta-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin: 1rem auto;
    max-width: 360px;
    text-align: left;
    font-size: 0.825rem;
    color: var(--text-secondary);
}
.error-page .meta-card ul {
    margin: 0;
    padding-left: 1.25rem;
}
.error-page .meta-card code {
    word-break: break-all;
    display: inline-block;
    margin-top: 0.4rem;
}
.error-page .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}
.error-page details {
    background: var(--bg-tertiary);
    border: 1px solid var(--warning);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin-top: 1.25rem;
    text-align: left;
}
.error-page details summary {
    cursor: pointer;
    color: var(--warning);
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.error-page details .badge.dev {
    background: var(--warning);
    color: var(--bg-tertiary);
    margin-left: 0.5rem;
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
}
.error-page pre {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 0.75rem;
    border-radius: 4px;
    max-height: 300px;
    overflow: auto;
    font-size: 0.8rem;
    margin: 0.5rem 0 0;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ==========================================================================
   Admin layout (logged-in shell): sidebar + topbar + content
   ========================================================================== */

.admin-shell {
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.admin-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}
.sidebar-brand {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand h4 {
    color: var(--saffron);
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.sidebar-brand small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}
.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0;
    overflow-y: auto;
}
.sidebar-nav .nav-link,
.sidebar-footer .nav-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-left: 3px solid transparent;
    text-decoration: none;
    transition: background 0.12s, color 0.12s;
}
.sidebar-nav .nav-link:hover,
.sidebar-footer .nav-link:hover {
    background: rgba(var(--saffron-rgb), 0.06);
    color: var(--text-primary);
}
.sidebar-nav .nav-link.active {
    color: var(--saffron);
    background: rgba(var(--saffron-rgb), 0.10);
    border-left-color: var(--saffron);
}
.sidebar-nav .nav-link i,
.sidebar-footer .nav-link i {
    font-size: 1rem;
    width: 1.1rem;
    text-align: center;
}
.sidebar-nav .nav-section-label {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem 0.4rem;
}
.sidebar-footer {
    border-top: 1px solid var(--border);
    padding: 0.5rem 0;
}

/* ---- Main column ---- */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.admin-topbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.admin-topbar .page-title {
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 600;
}
.admin-topbar .user-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}
.admin-topbar .user-info .username {
    color: var(--text-primary);
    font-weight: 500;
}
.role-chip {
    display: inline-block;
    background: rgba(var(--saffron-rgb), 0.15);
    color: var(--saffron);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    letter-spacing: 0.3px;
}

.admin-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

/* ---- Stat cards (dashboard) ---- */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: rgba(var(--saffron-rgb), 0.15);
    color: var(--saffron);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.stat-card .stat-meta { min-width: 0; }
.stat-card .stat-value {
    color: var(--text-primary);
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.1;
}
.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 0.825rem;
    margin-top: 0.2rem;
}
.stat-card.warn  .stat-icon { background: rgba(255, 193, 7, 0.15);  color: var(--warning); }
.stat-card.danger .stat-icon { background: rgba(244, 67, 54, 0.15);  color: var(--danger); }

/* ---- Panels (section blocks) ---- */
.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}
.panel-header {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.panel-header h2,
.panel-header h3,
.panel-header h4 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}
.panel-header .panel-meta {
    color: var(--text-secondary);
    font-size: 0.825rem;
}
.panel-body { padding: 1.25rem; }
.panel-body.flush { padding: 0; }

/* ---- Tables on dark theme ---- */
.table-dark-admin {
    width: 100%;
    color: var(--text-primary);
    border-collapse: collapse;
}
.table-dark-admin thead th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.775rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.table-dark-admin tbody td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    vertical-align: middle;
}
.table-dark-admin tbody tr:last-child td { border-bottom: none; }
.table-dark-admin tbody tr:hover { background: rgba(var(--saffron-rgb), 0.04); }

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 999px;
}
.status-pill.active   { background: rgba(76,175,80,0.15); color: var(--success); }
.status-pill.inactive { background: rgba(244,67,54,0.15); color: var(--danger);  }
.status-pill.pending  { background: rgba(255,193,7,0.15); color: var(--warning); }
.status-pill.overdue  { background: rgba(244,67,54,0.15); color: var(--danger);  }
.status-pill.paid     { background: rgba(76,175,80,0.15); color: var(--success); }

.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--text-secondary);
}
.empty-state .glyph {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.empty-state .title {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}
.empty-state .detail { font-size: 0.85rem; }

/* ---- Bootstrap pagination on dark theme ---- */
.pagination .page-link {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: var(--border);
}
.pagination .page-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-light);
}
.pagination .page-item.active .page-link {
    background: var(--saffron);
    border-color: var(--saffron);
    color: #fff;
}
.pagination .page-item.disabled .page-link {
    background: var(--bg-secondary);
    color: var(--text-muted);
    border-color: var(--border);
}

/* ==========================================================================
   District sub-tab nav (overview / limits / features)
   ========================================================================== */

.district-subnav {
    display: inline-flex;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
}
.district-subnav .subnav-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: 6px;
    text-decoration: none;
}
.district-subnav .subnav-tab:hover {
    background: rgba(var(--saffron-rgb), 0.06);
    color: var(--text-primary);
    text-decoration: none;
}
.district-subnav .subnav-tab.active {
    background: rgba(var(--saffron-rgb), 0.15);
    color: var(--saffron);
}

/* ==========================================================================
   Feature toggle grid
   ========================================================================== */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.5rem;
}
.feature-row {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.12s, background 0.12s;
}
.feature-row:hover { border-color: var(--border-light); }
.feature-toggle {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}
.feature-toggle input {
    position: absolute; inset: 0; opacity: 0; cursor: pointer; z-index: 1;
}
.feature-track {
    position: absolute; inset: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    transition: background 0.15s, border-color 0.15s;
}
.feature-track::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px;
    width: 14px; height: 14px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: left 0.15s, background 0.15s;
}
.feature-toggle input:checked + .feature-track {
    background: rgba(var(--saffron-rgb), 0.2);
    border-color: var(--saffron);
}
.feature-toggle input:checked + .feature-track::after {
    left: 18px;
    background: var(--saffron);
}
.feature-meta {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}
.feature-label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}
.feature-key {
    color: var(--text-muted);
    font-size: 0.75rem;
    background: transparent;
    padding: 0;
}
.feature-help {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 0.1rem;
}

/* ==========================================================================
   Mobile responsiveness
   - Hamburger appears at width <= 992px; sidebar slides in over content.
   - Stat cards already auto-fit; tighten gutters on small screens.
   - Tables overflow horizontally inside their panel.
   - Sub-nav tabs scroll horizontally if they overflow.
   ========================================================================== */

/* Hamburger button — hidden by default, shown via media query below. */
.admin-topbar .hamburger {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.35rem 0.55rem;
    border-radius: 6px;
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
}
.admin-topbar .hamburger:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-light);
}

/* Sidebar backdrop (mobile only). Hidden until body.sidebar-open. */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1040;
    backdrop-filter: blur(2px);
}

/* ---- Tablet & smaller (<= 992px) ---- */
@media (max-width: 992px) {
    /* Sidebar becomes an off-canvas drawer */
    .admin-sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: -260px;
        width: 240px;
        z-index: 1050;
        transition: left 0.25s ease;
        box-shadow: 6px 0 20px rgba(0, 0, 0, 0.4);
    }
    body.sidebar-open .admin-sidebar {
        left: 0;
    }
    body.sidebar-open .sidebar-backdrop {
        display: block;
    }
    body.sidebar-open {
        overflow: hidden;   /* prevent background scroll while drawer is open */
    }

    /* Hamburger now visible in topbar */
    .admin-topbar .hamburger {
        display: inline-flex;
    }

    /* Main column fills the viewport */
    .admin-main {
        width: 100%;
    }

    /* Tighten topbar spacing */
    .admin-topbar {
        padding: 0.65rem 1rem;
        gap: 0.5rem;
    }
    .admin-topbar .page-title {
        font-size: 0.95rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 0;
    }
    .admin-topbar .user-info {
        gap: 0.4rem;
        font-size: 0.8rem;
    }
    .admin-topbar .user-info .username {
        display: none;   /* role chip still shown, name hidden to save room */
    }
}

/* ---- Phone (<= 768px) ---- */
@media (max-width: 768px) {
    .admin-content {
        padding: 1rem 0.75rem;
    }

    /* Stat cards already auto-fit, but make sure single-column on phone */
    .stat-cards {
        grid-template-columns: 1fr;
        gap: 0.65rem;
        margin-bottom: 1rem;
    }
    .stat-card {
        padding: 0.85rem 1rem;
    }
    .stat-card .stat-value { font-size: 1.4rem; }

    /* Panels: tighter padding, smaller header */
    .panel-header {
        padding: 0.65rem 0.9rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    .panel-header h2,
    .panel-header h3 {
        font-size: 0.95rem;
    }
    .panel-body { padding: 0.9rem; }

    /* Tables: horizontal scroll inside their panel.
       The flush-body case (where tables sit edge-to-edge) gets overflow-x. */
    .panel-body.flush,
    .panel-body > .table-dark-admin {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .table-dark-admin {
        font-size: 0.825rem;
        min-width: 560px;   /* forces horizontal scroll on narrow screens */
    }
    .table-dark-admin thead th,
    .table-dark-admin tbody td {
        padding: 0.55rem 0.7rem;
    }

    /* District subnav scrolls horizontally if it overflows */
    .district-subnav {
        max-width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    .district-subnav .subnav-tab {
        flex-shrink: 0;
    }

    /* Action button rows wrap cleanly */
    .d-flex.flex-wrap.gap-2 button,
    .d-flex.flex-wrap.gap-2 a.btn {
        flex-grow: 1;
        min-width: 0;
    }

    /* Auth card already constrained; just shrink padding */
    .auth-card {
        padding: 1.4rem;
        margin: 1rem;
    }

    /* Feature grid (toggles): single column */
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .feature-row {
        padding: 0.7rem 0.85rem;
    }

    /* SMMS-side integration panel grid → stack on phone */
    .panel-body [style*="grid-template-columns"] {
        /* Forms with auto-fit minmax(280px,1fr) already collapse; this catches the
           narrower SMMS-integration grid that uses fixed columns. */
    }
}

/* ---- Very narrow phones (<= 480px) ---- */
@media (max-width: 480px) {
    .admin-topbar .page-title {
        font-size: 0.85rem;
    }
    .role-chip {
        font-size: 0.65rem;
        padding: 0.1rem 0.4rem;
    }
    .auth-brand h1 { font-size: 1.25rem; }
    .auth-brand .subtitle { font-size: 0.78rem; }
    .stat-card .stat-value { font-size: 1.25rem; }
    .empty-state { padding: 1.75rem 0.5rem; }
    .empty-state .glyph { font-size: 2rem; }
}