/* =============================================
   TaskFlow application shell
   ============================================= */

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --sidebar-width: 345px;
    --topbar-height: 100px;
    --app-bg: #f3f4f6;
    --surface: #ffffff;
    --surface-strong: #f8fafc;
    --border: #dfe3ea;
    --text: #0f172a;
    --muted: #64748b;
    --sidebar-bg: #111827;
    --sidebar-text: #cbd5e1;
    --sidebar-muted: #94a3b8;
    --shadow: 0 1px 2px rgba(15, 23, 42, 0.08), 0 1px 8px rgba(15, 23, 42, 0.04);
}

[data-theme="dark"] {
    --app-bg: #0b1120;
    --surface: #111827;
    --surface-strong: #172033;
    --border: #263244;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --sidebar-bg: #050816;
    --sidebar-text: #d1d5db;
    --sidebar-muted: #94a3b8;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.22);
}

* {
    letter-spacing: 0;
}

body {
    font-family: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--app-bg);
    color: var(--text);
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
}

.topbar {
    height: var(--topbar-height);
    left: var(--sidebar-width);
    z-index: 1030;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

.topbar .container-fluid {
    height: 100%;
    padding-left: 30px;
    padding-right: 22px;
}

.topbar-eyebrow {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
}

.topbar-page {
    color: var(--text);
    font-size: 1.2rem;
    font-weight: 800;
    line-height: 1.25;
}

.topbar-menu-btn {
    color: var(--text);
}

#wrapper {
    padding-top: var(--topbar-height);
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    overflow-y: auto;
    border-right: 1px solid rgba(148, 163, 184, 0.14);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: var(--topbar-height);
    padding: 22px;
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.sidebar-brand:hover {
    color: #fff;
}

.sidebar-logo {
    width: 52px;
    height: 52px;
    flex: 0 0 52px;
    border-radius: 7px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.sidebar-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.sidebar-company,
.sidebar-system {
    display: block;
}

.sidebar-company {
    color: #fff;
    font-size: 1.05rem;
    font-weight: 800;
}

.sidebar-system {
    color: var(--sidebar-muted);
    font-size: 0.82rem;
    font-weight: 700;
}

.sidebar .nav {
    padding: 26px 14px;
}

.sidebar .nav-link {
    color: var(--sidebar-text);
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 50px;
    padding: 0 14px;
    border-radius: 7px;
    margin: 3px 0;
    font-weight: 800;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(96, 165, 250, 0.12);
}

.sidebar .nav-link.active {
    color: #fff;
    background: rgba(37, 99, 235, 0.25) !important;
    box-shadow: inset 3px 0 0 #60a5fa;
}

.sidebar .nav-link i {
    width: 20px;
    color: var(--sidebar-muted);
    text-align: center;
}

.sidebar .nav-link.active i,
.sidebar .nav-link:hover i {
    color: #bfdbfe;
}

.sidebar .nav-link.disabled {
    min-height: auto;
    padding: 22px 12px 8px;
    color: var(--sidebar-muted);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent !important;
    box-shadow: none;
}

.sidebar hr {
    border-color: rgba(148, 163, 184, 0.2);
}

.offcanvas.sidebar {
    background: var(--sidebar-bg);
    color: #fff;
}

.offcanvas.sidebar .offcanvas-title {
    color: #fff;
}

.offcanvas.sidebar .btn-close {
    filter: invert(1);
}

#page-content-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-width: 0;
}

#page-content-wrapper .container-fluid {
    padding: 34px 30px 40px !important;
}

.card {
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 18px 22px;
}

.card-body {
    background: transparent;
}

.border-left-primary { border-left: 5px solid var(--primary-color) !important; }
.border-left-success { border-left: 5px solid #16a34a !important; }
.border-left-info { border-left: 5px solid #0284c7 !important; }
.border-left-warning { border-left: 5px solid #f59e0b !important; }
.border-left-danger { border-left: 5px solid #dc2626 !important; }
.border-left-secondary { border-left: 5px solid var(--secondary-color) !important; }

.card.border-left-primary,
.card.border-left-success,
.card.border-left-info,
.card.border-left-warning,
.card.border-left-danger,
.card.border-left-secondary {
    min-height: 162px;
}

.card .h5 {
    color: var(--text);
    font-size: 2rem;
    font-weight: 900;
}

.text-xs {
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.text-gray-300 {
    color: #cbd5e1;
}

.text-gray-800 {
    color: var(--text) !important;
}

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

.table {
    color: var(--text);
}

.table th {
    background: var(--surface-strong);
    border-color: var(--border);
    color: #334155;
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

[data-theme="dark"] .table th {
    color: #cbd5e1;
}

.table td {
    border-color: var(--border);
    vertical-align: middle;
    font-size: 0.92rem;
}

.table-hover tbody tr:hover {
    color: var(--text);
    background-color: rgba(37, 99, 235, 0.06);
}

.table-light {
    --bs-table-bg: var(--surface-strong);
    --bs-table-color: var(--text);
    --bs-table-border-color: var(--border);
}

.list-group-item {
    color: var(--text);
    background: var(--surface);
    border-color: var(--border);
}

.badge {
    font-size: 0.75rem;
    font-weight: 800;
    padding: 5px 10px;
}

.btn {
    border-radius: 7px;
    font-size: 0.88rem;
    font-weight: 800;
    padding: 8px 16px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.topbar-action {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
}

.btn-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: #334155;
    background: var(--surface);
    border: 1px solid #cbd5e1;
}

[data-theme="dark"] .btn-icon {
    color: #e5e7eb;
    border-color: var(--border);
}

.user-menu {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #334155;
    background: var(--surface);
    border: 1px solid #cbd5e1;
}

[data-theme="dark"] .user-menu {
    color: #e5e7eb;
    border-color: var(--border);
}

.user-avatar {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 7px;
    color: #fff;
    background: #1e3a8a;
    font-weight: 900;
}

.form-control,
.form-select {
    color: var(--text);
    background-color: var(--surface);
    border-color: var(--border);
}

.form-control:focus,
.form-select:focus {
    color: var(--text);
    background-color: var(--surface);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.18);
}

.dropdown-menu {
    color: var(--text);
    background: var(--surface);
    border-color: var(--border);
    box-shadow: var(--shadow);
}

.dropdown-item {
    color: var(--text);
}

.dropdown-item:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.08);
}

.modal-content,
.alert {
    color: var(--text);
    background: var(--surface);
    border-color: var(--border);
}

.page-link {
    color: var(--primary-color);
    background: var(--surface);
    border: 1px solid var(--border);
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-strong);
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

.spinner-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .spinner-overlay {
    background: rgba(11, 17, 32, 0.8);
}

.logo-placeholder {
    width: 120px;
    height: 40px;
    background: var(--surface-strong);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--muted);
}

.paste-preview {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.paste-preview-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface-strong);
}

.paste-preview-item img {
    width: 72px;
    height: 48px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: #fff;
}

.paste-preview-item span {
    min-width: 0;
    flex: 1;
    color: var(--muted);
    font-size: 0.85rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 991.98px) {
    :root {
        --topbar-height: 72px;
    }

    .topbar {
        left: 0;
    }

    .sidebar:not(.offcanvas) {
        display: none !important;
    }

    #page-content-wrapper {
        margin-left: 0;
    }

    #page-content-wrapper .container-fluid {
        padding: 24px 16px 32px !important;
    }

    .topbar-eyebrow {
        display: none;
    }

    .topbar-page {
        font-size: 1rem;
    }

    .topbar-action {
        padding-left: 12px;
        padding-right: 12px;
    }

    .btn-help {
        display: none;
    }
}

@media (min-width: 992px) {
    .offcanvas.sidebar {
        display: none !important;
    }
}

@media print {
    .sidebar,
    .topbar,
    .btn,
    .no-print {
        display: none !important;
    }

    #page-content-wrapper {
        margin-left: 0 !important;
    }
}