/* ============================================================
   MSP Manager Portal - Core Theme CSS
   Light & Dark Theme Support
   Professional MSP Management Interface
   ============================================================ */

/* CSS Custom Properties - Light Theme (default) */
:root,
[data-theme="light"] {
    /* Background colors */
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --bg-sidebar: #1e293b;
    --bg-sidebar-hover: #334155;
    --bg-sidebar-active: #2563eb;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-header: #ffffff;
    --bg-footer: #ffffff;
    --bg-modal-overlay: rgba(0, 0, 0, 0.5);

    /* Text colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-sidebar: #cbd5e1;
    --text-sidebar-active: #ffffff;
    --text-link: #2563eb;
    --text-inverse: #ffffff;

    /* Brand / Accent */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-success: #16a34a;
    --color-success-hover: #15803d;
    --color-success-light: #dcfce7;
    --color-warning: #d97706;
    --color-warning-hover: #b45309;
    --color-warning-light: #fef3c7;
    --color-danger: #dc2626;
    --color-danger-hover: #b91c1c;
    --color-danger-light: #fee2e2;
    --color-info: #0891b2;
    --color-info-light: #cffafe;

    /* Border */
    --border-color: #e2e8f0;
    --border-focus: #2563eb;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 0px;
    --header-height: 60px;
    --footer-height: 50px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-sidebar: #0c1222;
    --bg-sidebar-hover: #1e293b;
    --bg-sidebar-active: #2563eb;
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --bg-header: #1e293b;
    --bg-footer: #1e293b;
    --bg-modal-overlay: rgba(0, 0, 0, 0.7);

    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-sidebar: #94a3b8;
    --text-sidebar-active: #ffffff;
    --text-link: #60a5fa;
    --text-inverse: #0f172a;

    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: #1e3a5f;
    --color-success: #22c55e;
    --color-success-hover: #16a34a;
    --color-success-light: #14532d;
    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-warning-light: #451a03;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-danger-light: #450a0a;
    --color-info: #22d3ee;
    --color-info-light: #083344;

    --border-color: #334155;
    --border-focus: #3b82f6;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}
/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

img, svg { max-width: 100%; height: auto; }

ul, ol { list-style: none; padding: 0; margin: 0; }

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}
h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p { margin-bottom: var(--spacing-sm); }

code, pre {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}
pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    overflow-x: auto;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* ============================================================
   App Layout
   ============================================================ */
.app-layout {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease, width 0.3s ease;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-brand {
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #ffffff;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    height: var(--header-height);
    flex-shrink: 0;
}

.sidebar-brand i { font-size: 1.4rem; color: #60a5fa; }

.sidebar-nav { flex: 1; padding: var(--spacing-sm) 0; }

.sidebar-nav .nav-section {
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-xs);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 10px var(--spacing-lg);
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.15s ease;
}

.sidebar-nav a:hover {
    background: var(--bg-sidebar-hover);
    color: #ffffff;
    text-decoration: none;
}

.sidebar-nav a.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
    border-left-color: #60a5fa;
}

.sidebar-nav a i { width: 20px; text-align: center; font-size: 1rem; }

.sidebar-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: var(--font-size-xs);
}

.sidebar-footer .theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-sidebar);
    cursor: pointer;
    padding: 8px 0;
    background: none;
    border: none;
    font-size: var(--font-size-sm);
    width: 100%;
    text-align: left;
}

.sidebar-footer .theme-toggle:hover { color: #ffffff; }

.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 8px 0;
    color: var(--text-sidebar);
    font-size: var(--font-size-sm);
}

/* Main Content */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Top Header Bar */
.app-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-left .menu-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-primary);
    cursor: pointer;
    display: none;
    padding: 4px;
}

.header-left .page-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-right .user-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.header-right .btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.15rem;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.header-right .btn-icon:hover { color: var(--text-primary); background: var(--bg-primary); }

/* Content area */
.app-content {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1400px;
    width: 100%;
}

/* Footer */
.app-footer {
    background: var(--bg-footer);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    height: var(--footer-height);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
}

.card-body { padding: var(--spacing-lg); }

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Dashboard Cards */
.dash-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.dash-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.dash-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.dash-card .dash-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.dash-card .dash-icon.blue { background: var(--color-primary-light); color: var(--color-primary); }
.dash-card .dash-icon.green { background: var(--color-success-light); color: var(--color-success); }
.dash-card .dash-icon.amber { background: var(--color-warning-light); color: var(--color-warning); }
.dash-card .dash-icon.red { background: var(--color-danger-light); color: var(--color-danger); }
.dash-card .dash-icon.teal { background: var(--color-info-light); color: var(--color-info); }

.dash-card .dash-info { flex: 1; }

.dash-card .dash-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.2;
}

.dash-card .dash-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-top: 2px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;
    transition: all 0.15s ease;
    font-family: var(--font-family);
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

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

.btn-success { background: var(--color-success); color: #ffffff; border-color: var(--color-success); }
.btn-success:hover { background: var(--color-success-hover); }

.btn-danger { background: var(--color-danger); color: #ffffff; border-color: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger-hover); }

.btn-warning { background: var(--color-warning); color: #ffffff; border-color: var(--color-warning); }
.btn-warning:hover { background: var(--color-warning-hover); }

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}
.btn-outline:hover { background: var(--bg-primary); border-color: var(--text-muted); }

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

.btn-sm { padding: 4px 10px; font-size: var(--font-size-xs); }
.btn-lg { padding: 12px 24px; font-size: var(--font-size-base); }

.btn-icon-only { padding: 6px; min-width: 34px; justify-content: center; }

/* Action Button Group */
.action-group {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

/* ============================================================
   Forms
   ============================================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.form-group .required::after {
    content: " *";
    color: var(--color-danger);
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    line-height: 1.5;
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control { cursor: pointer; appearance: auto; }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.form-inline {
    display: flex;
    gap: var(--spacing-sm);
    align-items: end;
    flex-wrap: wrap;
}

.form-inline .form-group { margin-bottom: 0; }

.input-icon {
    position: relative;
}

.input-icon .form-control { padding-left: 36px; }

.input-icon i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================================
   Tables
   ============================================================ */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th, .table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table thead th {
    background: var(--bg-primary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.table tbody tr:hover { background: var(--bg-primary); }

.table-hover tbody tr { cursor: default; }

.table-striped tbody tr:nth-child(even) { background: var(--bg-primary); }

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

/* ============================================================
   Badges
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-info { background: var(--color-info-light); color: var(--color-info); }
.badge-neutral { background: var(--bg-primary); color: var(--text-secondary); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

/* ============================================================
   Alerts
   ============================================================ */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    line-height: 1.5;
    border-left: 4px solid transparent;
}

.alert-success { background: var(--color-success-light); color: #166534; border-left-color: var(--color-success); }
.alert-danger { background: var(--color-danger-light); color: #991b1b; border-left-color: var(--color-danger); }
.alert-warning { background: var(--color-warning-light); color: #92400e; border-left-color: var(--color-warning); }
.alert-info { background: var(--color-info-light); color: #155e75; border-left-color: var(--color-info); }

.alert i { flex-shrink: 0; margin-top: 1px; }

[data-theme="dark"] .alert-success { color: #bbf7d0; }
[data-theme="dark"] .alert-danger { color: #fecaca; }
[data-theme="dark"] .alert-warning { color: #fde68a; }
[data-theme="dark"] .alert-info { color: #a5f3fc; }

/* ============================================================
   Modals
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-modal-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 540px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { margin: 0; font-size: var(--font-size-lg); }

.modal-body { padding: var(--spacing-lg); overflow-y: auto; flex: 1; }

.modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ============================================================
   Notifications (Toast)
   ============================================================ */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 400px;
    width: 100%;
    pointer-events: none;
}

.notification {
    padding: 12px 18px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    animation: slideIn 0.3s ease;
    pointer-events: all;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notification-success { background: var(--color-success); color: #fff; }
.notification-error { background: var(--color-danger); color: #fff; }
.notification-warning { background: var(--color-warning); color: #fff; }
.notification-info { background: var(--color-primary); color: #fff; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================================
   Print Styles
   ============================================================ */
@media print {
    .app-sidebar, .app-header, .app-footer, .btn, .action-group,
    .menu-toggle, .theme-toggle, .notification-container, .modal-overlay,
    form, .form-inline, .alert, .badge {
        display: none !important;
    }

    .app-main { margin-left: 0 !important; }

    .app-content { padding: 0 !important; max-width: 100% !important; }

    .card { box-shadow: none !important; border: 1px solid #ccc !important; break-inside: avoid; }

    .table { font-size: 10pt; }
    .table th, .table td { padding: 6px 8px; }

    body { background: #fff !important; color: #000 !important; font-size: 11pt; }

    a { color: #000 !important; text-decoration: underline; }
}

/* ============================================================
   Page Header
   ============================================================ */
.page-header { margin-bottom: var(--spacing-lg); }
.page-header h2 { font-size: var(--font-size-2xl); margin-bottom: 4px; display: flex; align-items: center; gap: var(--spacing-sm); }
.page-header .text-muted { color: var(--text-secondary); font-size: var(--font-size-sm); }

/* ============================================================
   Utility Classes
   ============================================================ */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: var(--font-size-sm); }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.p-0 { padding: 0; }

/* ============================================================
   Responsive / Mobile
   ============================================================ */
@media (max-width: 768px) {
    .app-sidebar {
        transform: translateX(-100%);
        width: 280px;
        min-width: 280px;
    }

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

    .app-main { margin-left: 0 !important; }

    .header-left .menu-toggle { display: block; }

    .app-content { padding: var(--spacing-md); }

    .dash-cards { grid-template-columns: 1fr; }

    .form-row { grid-template-columns: 1fr; }

    .table-responsive { margin: 0 calc(-1 * var(--spacing-md)); }

    .card-header { flex-direction: column; gap: var(--spacing-sm); align-items: flex-start; }

    .page-header h2 { font-size: var(--font-size-xl); }

    .notification-container { left: 10px; right: 10px; max-width: none; }
}

@media (max-width: 480px) {
    .btn { padding: 8px 12px; font-size: var(--font-size-xs); }

    .page-header h2 { font-size: var(--font-size-lg); }

    .dash-card { padding: var(--spacing-md); }

    .table th, .table td { padding: 6px 8px; font-size: var(--font-size-xs); }
}

/* ============================================================
   Login Page
   ============================================================ */
.login-page {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: 20px;
}

.login-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 420px;
    width: 100%;
    padding: 40px;
}

.login-header { text-align: center; margin-bottom: 28px; }

.login-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 8px;
}

.login-form { display: flex; flex-direction: column; gap: 16px; }

.login-footer { text-align: center; margin-top: 24px; }

/* ============================================================
   Core Refactor Compatibility Layer
   Ensures old/new modules use the same design tokens in light/dark mode.
   ============================================================ */
:root,
[data-theme="light"],
[data-theme="dark"] {
    --surface: var(--bg-card);
    --surface-2: var(--bg-secondary);
    --card-bg: var(--bg-card);
    --msp-card-bg: var(--bg-card);
    --msp-bg: var(--bg-primary);
    --msp-surface: var(--bg-card);
    --input-bg: var(--bg-input);
    --input-text: var(--text-primary);
    --text-color: var(--text-primary);
    --label-color: var(--text-primary);
    --muted-color: var(--text-secondary);
    --primary: var(--color-primary);
    --primary-hover: var(--color-primary-hover);
    --success: var(--color-success);
    --warning: var(--color-warning);
    --danger: var(--color-danger);
    --info: var(--color-info);
    --required-color: var(--color-danger);
    --focus-ring: rgba(37, 99, 235, 0.18);
}

.alert-error { background: var(--color-danger-light); color: #991b1b; border-left-color: var(--color-danger); }
[data-theme="dark"] .alert-error { color: #fecaca; }

label,
.form-label,
.msp-module label,
.tw-module label,
.client-crm-module label,
.daily-task-control label,
.eodd-module label {
    color: var(--label-color);
    font-weight: 600;
}

label .required,
.required,
.tw-required,
.msp-required,
[aria-required="true"]::after {
    color: var(--required-color);
    display: inline;
}

input,
select,
textarea,
.form-control,
.msp-input,
.tw-module input,
.tw-module select,
.tw-module textarea,
.client-crm-module input,
.client-crm-module select,
.client-crm-module textarea,
.daily-task-control input,
.daily-task-control select,
.daily-task-control textarea,
.eodd-module input,
.eodd-module select,
.eodd-module textarea {
    color: var(--text-primary);
    background-color: var(--bg-input);
    border-color: var(--border-color);
}

input:focus,
select:focus,
textarea:focus,
.form-control:focus,
.msp-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--focus-ring);
    outline: none;
}

::placeholder { color: var(--text-muted); opacity: 1; }

.msp-module,
.module-shell,
.tw-module,
.client-crm-module,
.daily-task-control,
.eodd-module {
    color: var(--text-primary);
}

.module-header,
.msp-module-header,
.tw-page-header,
.client-crm-header,
.dtc-filters,
.eodd-filter-card,
.tw-filters {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.module-header,
.msp-module-header,
.tw-page-header,
.client-crm-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.module-actions,
.tw-actions,
.eodd-header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.module-report-list { margin-left: 1rem; list-style: disc; }

.actions-col {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    align-items: center;
}

.actions-col form { margin: 0; }

.modal-container,
dialog,
.client-crm-dialog,
.dtc-dialog,
.eodd-modal,
.tw-modal {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.modal-header,
.modal-footer,
.client-crm-dialog header,
.client-crm-dialog footer,
.dtc-dialog-header,
.dtc-dialog-actions,
.eodd-modal-header,
.eodd-modal-footer,
.tw-modal-header,
.tw-modal-footer {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}

@media (max-width: 900px) {
    .app-content {
        padding: var(--spacing-md);
        max-width: 100%;
    }

    .module-header,
    .msp-module-header,
    .tw-page-header,
    .client-crm-header {
        flex-direction: column;
        align-items: stretch;
    }

    .module-actions,
    .tw-actions,
    .eodd-header-actions,
    .action-group,
    .actions-col {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .app-header {
        padding: 0 var(--spacing-md);
    }

    .header-right .user-badge {
        display: none;
    }

    .card-body,
    .card-header,
    .modal-body,
    .modal-header,
    .modal-footer {
        padding: var(--spacing-md);
    }

    .btn,
    button.btn,
    .tw-btn,
    .msp-btn {
        justify-content: center;
    }

    .module-management-table,
    .module-management-table thead,
    .module-management-table tbody,
    .module-management-table tr,
    .module-management-table th,
    .module-management-table td {
        display: block;
        width: 100%;
    }

    .module-management-table thead { display: none; }

    .module-management-table tr {
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
        background: var(--bg-card);
    }

    .module-management-table td {
        border: 0;
        padding: 6px 4px;
    }

    .module-management-table td::before {
        content: attr(data-label);
        display: block;
        color: var(--text-secondary);
        font-size: var(--font-size-xs);
        text-transform: uppercase;
        letter-spacing: 0.03em;
        margin-bottom: 2px;
    }

    .actions-col form,
    .actions-col .btn {
        width: 100%;
    }
}