/* ==========================================================================
   Fast Buildings Fleet Management System - Unified Design System CSS
   ========================================================================== */

:root {
    --primary: #0f7a4a;
    --primary-dark: #075c36;
    --primary-light: #eaf7f0;

    --secondary: #397f83;

    --success: #198754;
    --success-bg: #e8f6ee;

    --warning: #b76e00;
    --warning-bg: #fff4dd;

    --danger: #c9362b;
    --danger-bg: #fdecea;

    --info: #1769aa;
    --info-bg: #e9f4ff;

    --neutral-900: #1e293b;
    --neutral-700: #475569;
    --neutral-500: #64748b;
    --neutral-300: #cbd5e1;
    --neutral-200: #e2e8f0;
    --neutral-100: #f1f5f9;
    --neutral-50: #f8fafc;

    --page-bg: #f4f8f6;
    --card-bg: #ffffff;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --shadow-sm: 0 2px 8px rgba(15, 65, 45, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 65, 45, 0.10);

    --sidebar-width: 300px;
    --header-height: 68px;

    --font-family-base: "Cairo", "Tajawal", "Segoe UI", Arial, sans-serif;
}

/* Base Body Style */
body {
    font-family: var(--font-family-base);
    background-color: var(--page-bg);
    color: var(--neutral-900);
    margin: 0;
    padding: 0;
    direction: rtl;
    text-align: right;
    -webkit-font-smoothing: antialiased;
}

/* Accessible interaction states */
:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 3px solid rgba(15, 122, 74, 0.28);
    outline-offset: 2px;
}

.sidebar-overlay { display: none; }

/* Layout System */
.app-layout {
    min-height: 100vh;
    background: var(--page-bg);
    display: flex;
    flex-direction: column;
}

.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-dark);
    color: #ffffff;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease-in-out;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar-logo {
    width: 100%;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo img {
    display: block;
    width: auto;
    max-width: 170px;
    max-height: 58px;
    object-fit: contain;
}

.sidebar-section-label {
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    padding: 14px 20px 6px;
    letter-spacing: 0.5px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    border-right: 4px solid transparent;
}

.sidebar-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.sidebar-link.active {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    border-right: 4px solid #ffffff;
    font-weight: 700;
}

.main-content {
    margin-right: var(--sidebar-width);
    min-height: 100vh;
    padding: 24px;
    transition: margin 0.25s ease;
}

.page-container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

/* Page Header Structure */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.page-title {
    margin: 0;
    font-size: clamp(22px, 2vw, 30px);
    font-weight: 800;
    color: var(--neutral-900);
}

.page-subtitle {
    margin: 6px 0 0;
    color: var(--neutral-500);
    font-size: 14px;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* Backwards-compatible page heading used by existing feature templates. */
.page-heading, .page-heading-main {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.page-heading {
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.page-heading-main { min-width: 0; }
.page-heading h1 {
    margin: 0;
    color: var(--neutral-900);
    font-size: clamp(22px, 2vw, 30px);
    font-weight: 800;
}
.page-heading p { margin: 6px 0 0; color: var(--neutral-500); }
.page-icon {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    display: grid;
    place-items: center;
    border-radius: var(--radius-md);
    color: var(--primary);
    background: var(--primary-light);
    font-size: 20px;
}

/* Breadcrumb Styling */
.breadcrumb-custom {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--neutral-500);
    margin-bottom: 6px;
    list-style: none;
    padding: 0;
}

.breadcrumb-custom a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb-custom a:hover {
    text-decoration: underline;
}

/* Severity Badges & Visual Statuses */
.severity-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 28px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.severity-info {
    color: var(--info);
    background: var(--info-bg);
}

.severity-success {
    color: var(--success);
    background: var(--success-bg);
}

.severity-warning {
    color: var(--warning);
    background: var(--warning-bg);
}

.severity-danger,
.severity-critical {
    color: var(--danger);
    background: var(--danger-bg);
}

/* Icon Utility Classes */
.icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: inline-block;
    vertical-align: middle;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-lg {
    width: 22px;
    height: 22px;
}

/* Notification Dropdown Container */
.notification-dropdown {
    width: min(390px, calc(100vw - 24px));
    max-height: 520px;
    overflow-y: auto;
    padding: 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.notification-card {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 14px;
    align-items: start;
    padding: 16px;
    background: #ffffff;
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.notification-card.warning {
    border-right: 4px solid var(--warning);
}

.notification-card.danger,
.notification-card.critical {
    border-right: 4px solid var(--danger);
}

.notification-card.info {
    border-right: 4px solid var(--info);
}

.notification-card.success {
    border-right: 4px solid var(--success);
}

.notification-card.unread {
    background-color: var(--primary-light);
}

/* Dashboard Stat Cards */
.stat-card {
    min-height: 128px;
    padding: 18px;
    background: var(--card-bg);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-dark);
}

/* Table Cards */
.table-card {
    background: #ffffff;
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.table > :not(caption) > * > * { padding: 0.8rem 0.9rem; vertical-align: middle; }
.table thead th, .table .text-nowrap, .table time { white-space: nowrap; }

.form-control, .form-select { min-height: 44px; }
.form-control.is-invalid, .form-select.is-invalid,
.was-validated .form-control:invalid, .was-validated .form-select:invalid { border-color: var(--danger); }

.empty-state {
    padding: clamp(28px, 5vw, 56px) 20px;
    text-align: center;
    color: var(--neutral-500);
}
.empty-state .icon, .empty-state > i { color: var(--neutral-300); }

/* Authentication screens use the same brand without exposing the app shell. */
.auth-body .app-sidebar, .auth-body .sidebar-overlay,
.auth-body .app-header, .auth-body footer { display: none !important; }
.auth-body .main-content {
    margin-right: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(circle at top right, rgba(15, 122, 74, 0.12), transparent 34%), var(--page-bg);
}
.auth-body .page-container { max-width: 480px; }
.auth-card { width: 100%; }
.auth-logo {
    display: block;
    width: auto;
    max-width: 180px;
    max-height: 72px;
    object-fit: contain;
    margin: 0 auto 18px;
}
.is-loading { cursor: wait !important; opacity: 0.78; pointer-events: none; }

/* Standardized Buttons */
.btn-primary {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #ffffff !important;
}

.btn-primary:hover {
    background-color: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
}

.btn-secondary {
    background-color: var(--secondary) !important;
    border-color: var(--secondary) !important;
    color: #ffffff !important;
}

/* Responsive Media Queries */
@media (max-width: 991.98px) {
    .app-sidebar {
        transform: translateX(100%);
    }

    .main-content {
        margin-right: 0;
        padding: 16px;
    }

    body.sidebar-open .app-sidebar {
        transform: translateX(0);
    }

    body.sidebar-open .sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 1035;
        background: rgba(15, 23, 42, 0.48);
        backdrop-filter: blur(2px);
    }

    .page-header {
        flex-direction: column;
        align-items: stretch;
    }

    .page-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .app-header { gap: 12px; flex-wrap: wrap; }
}

@media (max-width: 575.98px) {
    .main-content { padding: 12px; }
    .page-heading, .page-header { gap: 14px; margin-bottom: 18px; }
    .page-heading-main { width: 100%; }
    .page-actions, .page-heading > :last-child { width: 100%; }
    .page-actions .btn, .page-heading > .btn { flex: 1 1 auto; }
    .notification-dropdown {
        position: fixed !important;
        top: 72px !important;
        right: 12px !important;
        left: 12px !important;
        width: auto;
        transform: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}