/* ==========================================================================
   CanteenHub - Enterprise Blocky Design System (0px Border Radius)
   ========================================================================== */

:root {
    --bg-main: #f1f5f9;
    --bg-surface: #ffffff;
    --bg-subtle: #f8fafc;
    --bg-inset: #f1f5f9;

    --text-main: #0f172a;
    --text-muted: #475569;
    --text-light: #64748b;
    --text-faint: #94a3b8;

    --border-color: #cbd5e1;
    --border-dark: #0f172a;
    --border-focus: #2563eb;

    --primary: #0f172a;
    --primary-hover: #1e293b;
    --primary-light: #e2e8f0;
    --primary-contrast: #ffffff;

    --accent-blue: #2563eb;
    --accent-blue-hover: #1d4ed8;
    --accent-blue-light: #eff6ff;

    --status-open: #059669;
    --status-open-bg: #ecfdf5;
    --status-open-border: #a7f3d0;

    --status-closed: #d97706;
    --status-closed-bg: #fffbeb;
    --status-closed-border: #fde68a;

    --status-arrived: #0284c7;
    --status-arrived-bg: #f0f9ff;
    --status-arrived-border: #bae6fd;

    --status-danger: #dc2626;
    --status-danger-bg: #fef2f2;
    --status-danger-border: #fecaca;

    --shadow-flat: 2px 2px 0px rgba(15, 23, 42, 0.12);
    --shadow-flat-lg: 4px 4px 0px rgba(15, 23, 42, 0.15);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* ---------------- Global Reset & 0px Radius Rule ---------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border-radius: 0 !important; /* Strict Enterprise Blocky Rule */
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------------- Top Enterprise Navigation Bar ---------------- */
.navbar {
    background-color: #0f172a;
    border-bottom: 2px solid #334155;
    color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 50;
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.navbar-brand-icon {
    width: 2.25rem;
    height: 2.25rem;
    background-color: #2563eb;
    border: 1px solid #60a5fa;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.25rem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 0.9rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #94a3b8;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.1s ease;
}

.nav-link:hover {
    color: #ffffff;
    background-color: #1e293b;
    border-color: #334155;
}

.nav-link.active {
    color: #ffffff;
    background-color: #1e293b;
    border-color: #3b82f6;
    border-bottom: 2px solid #3b82f6;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ---------------- Layout & Main Container ---------------- */
.main-container {
    max-width: 1280px;
    width: 100%;
    margin: 1.75rem auto;
    padding: 0 1.5rem;
    flex: 1;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
    gap: 1rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-flat);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-main);
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ---------------- Stat Cards Grid ---------------- */
.grid-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    box-shadow: var(--shadow-flat);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-left: 4px solid var(--primary);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-main);
    margin-top: 0.2rem;
    letter-spacing: -0.02em;
}

.stat-icon {
    width: 2.75rem;
    height: 2.75rem;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--bg-subtle);
}

/* ---------------- Enterprise Blocky Cards ---------------- */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-flat);
    margin-bottom: 1.25rem;
}

.card-header {
    padding: 1rem 1.25rem;
    background-color: var(--bg-subtle);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    padding: 0.85rem 1.25rem;
    background-color: var(--bg-subtle);
    border-top: 1px solid var(--border-color);
}

/* ---------------- Enterprise Tables ---------------- */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.875rem;
}

.table th {
    background-color: #0f172a;
    color: #ffffff;
    font-weight: 700;
    padding: 0.75rem 1rem;
    border: 1px solid #1e293b;
    text-transform: uppercase;
    font-size: 0.725rem;
    letter-spacing: 0.06em;
}

.table td {
    padding: 0.85rem 1rem;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    vertical-align: middle;
}

.table tbody tr:nth-child(even) {
    background-color: #f8fafc;
}

.table tbody tr:hover {
    background-color: #e2e8f0;
}

/* ---------------- Enterprise Badges ---------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.55rem;
    font-family: var(--font-mono);
    font-size: 0.725rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 1px solid transparent;
}

.badge-open, .badge-completed {
    background-color: var(--status-open-bg);
    color: var(--status-open);
    border-color: var(--status-open-border);
}

.badge-closed, .badge-warning, .badge-pending {
    background-color: var(--status-closed-bg);
    color: var(--status-closed);
    border-color: var(--status-closed-border);
}

.badge-arrived, .badge-processing {
    background-color: var(--status-arrived-bg);
    color: var(--status-arrived);
    border-color: var(--status-arrived-border);
}

.badge-danger, .badge-cancelled {
    background-color: var(--status-danger-bg);
    color: var(--status-danger);
    border-color: var(--status-danger-border);
}

.badge-neutral {
    background-color: #f1f5f9;
    color: #334155;
    border-color: #cbd5e1;
}

/* ---------------- Enterprise Buttons ---------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.1s ease;
    box-shadow: 1px 1px 0px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translate(1px, 1px);
    box-shadow: none;
}

.btn-primary {
    background-color: #0f172a;
    border-color: #0f172a;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #1e293b;
    border-color: #1e293b;
}

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

.btn-secondary:hover {
    background-color: #f8fafc;
    border-color: var(--border-dark);
}

.btn-success {
    background-color: #059669;
    border-color: #047857;
    color: #ffffff;
}

.btn-success:hover {
    background-color: #047857;
}

.btn-danger {
    background-color: #dc2626;
    border-color: #b91c1c;
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #b91c1c;
}

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.775rem;
}

/* ---------------- Forms & Inputs ---------------- */
.form-group {
    margin-bottom: 1.15rem;
}

.form-label {
    display: block;
    font-size: 0.775rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}

.form-control, .form-select, .form-textarea {
    width: 100%;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-main);
    background-color: #ffffff;
    font-family: inherit;
    transition: border-color 0.1s ease;
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--border-dark);
    box-shadow: 0 0 0 1px var(--border-dark);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

/* ---------------- Alerts / Toasts ---------------- */
.alert {
    padding: 0.85rem 1.15rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    box-shadow: var(--shadow-flat);
}

.alert-success {
    background-color: var(--status-open-bg);
    color: #065f46;
    border-color: var(--status-open-border);
    border-left: 4px solid #059669;
}

.alert-error {
    background-color: var(--status-danger-bg);
    color: #991b1b;
    border-color: var(--status-danger-border);
    border-left: 4px solid #dc2626;
}

.alert-info {
    background-color: var(--accent-blue-light);
    color: #1e40af;
    border-color: #bfdbfe;
    border-left: 4px solid #2563eb;
}

/* ---------------- Multi-Select Interactive Menu Cards (Blocky) ---------------- */
.menu-select-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 0.75rem 0.9rem;
    cursor: pointer;
    transition: all 0.1s ease;
    user-select: none;
    display: flex;
    flex-direction: column;
}

.menu-select-card:hover {
    border-color: var(--border-dark);
    background-color: #f8fafc;
}

.menu-select-card.is-selected {
    border: 2px solid #0f172a;
    background-color: #f1f5f9;
    box-shadow: 2px 2px 0px #0f172a;
}

/* ---------------- Footer ---------------- */
.footer {
    background-color: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 1.25rem;
    text-align: center;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-light);
    margin-top: auto;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 768px) {
    .navbar-container {
        flex-direction: column;
        height: auto;
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

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