/* =============================================
   PERSONEL İZİN YÖNETİM SİSTEMİ — Design System
   Premium Admin Panel Theme
   ============================================= */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---------- CSS Variables / Tokens ---------- */
:root {
    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    --header-height: 64px;

    /* Colors — Slate / Indigo palette */
    --color-sidebar-bg: #0f172a;
    --color-sidebar-hover: rgba(255, 255, 255, 0.06);
    --color-sidebar-active: rgba(99, 102, 241, 0.2);
    --color-sidebar-active-border: #818cf8;
    --color-sidebar-text: #94a3b8;
    --color-sidebar-text-active: #ffffff;
    --color-sidebar-section: #475569;

    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.15);

    --color-accent: #8b5cf6;
    --color-accent-light: #a78bfa;

    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    --color-body-bg: #f1f5f9;
    --color-card-bg: #ffffff;
    --color-card-border: #e2e8f0;
    --color-text-primary: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

/* ---------- Global Reset & Base ---------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--color-body-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-base);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    overflow-x: hidden;
}

.sidebar-collapsed .app-main {
    margin-left: var(--sidebar-collapsed-width);
}

.app-content {
    flex: 1;
    padding: 24px 32px;
    margin-top: var(--header-height);
    min-width: 0;
}

/* ---------- Sidebar ---------- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: var(--color-sidebar-text);
    z-index: 40;
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base);
    overflow: visible;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

/* Sidebar Brand */
.sidebar-brand {
    display: flex;
    align-items: center;
    padding: 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    min-height: var(--header-height);
}

.sidebar-collapsed .sidebar-brand {
    justify-content: center;
    padding: 20px 10px;
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.sidebar-brand-icon i {
    color: #ffffff;
    font-size: 16px;
}

.sidebar-brand-text {
    margin-left: 12px;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--transition-fast);
}

.sidebar-collapsed .sidebar-brand-text {
    opacity: 0;
    width: 0;
}

.sidebar-brand-text h1 {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
}

.sidebar-brand-text span {
    font-size: 11px;
    color: var(--color-sidebar-text);
    font-weight: 400;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav::-webkit-scrollbar {
    width: 3px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.sidebar-section-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--color-sidebar-section);
    padding: 16px 12px 8px;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-collapsed .sidebar-section-title {
    text-align: center;
    font-size: 0;
    padding: 16px 0 8px;
}

.sidebar-collapsed .sidebar-section-title::after {
    content: '•••';
    font-size: 8px;
    letter-spacing: 2px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--color-sidebar-text);
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    position: relative;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 500;
}

.sidebar-link:hover {
    background: var(--color-sidebar-hover);
    color: #e2e8f0;
}

.sidebar-link.active {
    background: var(--color-sidebar-active);
    color: var(--color-sidebar-text-active);
    border-left: 3px solid var(--color-sidebar-active-border);
    padding-left: 9px;
}

.sidebar-link i {
    width: 20px;
    font-size: 15px;
    text-align: center;
    flex-shrink: 0;
    transition: margin var(--transition-fast);
}

.sidebar-link span {
    margin-left: 12px;
    overflow: hidden;
    transition: opacity var(--transition-fast);
}

.sidebar-collapsed .sidebar-link span {
    opacity: 0;
    width: 0;
    margin-left: 0;
}

.sidebar-collapsed .sidebar-link {
    justify-content: center;
    padding: 10px;
}

.sidebar-link .badge {
    margin-left: auto;
    background: var(--color-danger);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
    line-height: 1.4;
}

.sidebar-collapsed .sidebar-link .badge {
    display: none;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-collapsed .sidebar-footer {
    padding: 12px 8px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.sidebar-collapsed .sidebar-user {
    justify-content: center;
    padding: 10px 0;
}

.sidebar-user:hover {
    background: var(--color-sidebar-hover);
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}

.sidebar-user-info {
    margin-left: 10px;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity var(--transition-fast);
}

.sidebar-collapsed .sidebar-user-info {
    opacity: 0;
    width: 0;
}

.sidebar-user-info .name {
    font-size: 13px;
    font-weight: 600;
    color: #e2e8f0;
    line-height: 1.2;
}

.sidebar-user-info .role {
    font-size: 11px;
    color: var(--color-sidebar-text);
}

.sidebar-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 10px 12px;
    margin-top: 8px;
    border-radius: var(--radius-md);
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.sidebar-collapsed .sidebar-logout {
    padding: 10px 0;
}

.sidebar-logout:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.sidebar-logout i {
    width: 20px;
    text-align: center;
    font-size: 14px;
}

.sidebar-logout span {
    margin-left: 10px;
}

.sidebar-collapsed .sidebar-logout span {
    display: none;
}

/* Sidebar Toggle */
.sidebar-toggle {
    position: absolute;
    top: 20px;
    right: -12px;
    width: 24px;
    height: 24px;
    background: var(--color-sidebar-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-sidebar-text);
    font-size: 10px;
    z-index: 50;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

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

.sidebar-collapsed .sidebar-toggle i {
    transform: rotate(180deg);
}

/* ---------- Top Header ---------- */
.top-header {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 30;
    transition: left var(--transition-base);
}

.sidebar-collapsed .top-header {
    left: var(--sidebar-collapsed-width);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-left h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.header-breadcrumb {
    font-size: 13px;
    color: var(--color-text-muted);
}

.header-breadcrumb a {
    color: var(--color-primary);
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-date {
    font-size: 13px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--color-body-bg);
    padding: 6px 14px;
    border-radius: var(--radius-full);
}

.header-date i {
    color: var(--color-primary);
    font-size: 12px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--color-body-bg);
}

/* ---------- Cards ---------- */
.card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
}

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

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-body {
    padding: 24px;
}

/* Stat Cards */
.stat-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card.primary::before { background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); }
.stat-card.success::before { background: linear-gradient(90deg, #10b981, #34d399); }
.stat-card.warning::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.stat-card.info::before    { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.stat-card.danger::before  { background: linear-gradient(90deg, #ef4444, #f87171); }

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.primary { background: rgba(99, 102, 241, 0.1);  color: var(--color-primary); }
.stat-icon.success { background: rgba(16, 185, 129, 0.1);  color: var(--color-success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.1);  color: var(--color-warning); }
.stat-icon.info    { background: rgba(59, 130, 246, 0.1);  color: var(--color-info); }
.stat-icon.danger  { background: rgba(239, 68, 68, 0.1);   color: var(--color-danger); }

.stat-content h4 {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.stat-content .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1;
}

/* ---------- Tables ---------- */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead th {
    background: #f8fafc;
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 5;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.03);
}

.data-table tbody td {
    padding: 14px 16px;
    font-size: 13.5px;
    color: var(--color-text-primary);
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

/* ---------- Badges / Status ---------- */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    gap: 5px;
}

.status-badge.pending  { background: var(--color-warning-light); color: #92400e; }
.status-badge.approved { background: var(--color-success-light); color: #065f46; }
.status-badge.rejected { background: var(--color-danger-light);  color: #991b1b; }
.status-badge.cancelled { background: #f1f5f9; color: #475569; }

.status-badge i { font-size: 8px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 13.5px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

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

.btn-sm {
    padding: 6px 14px;
    font-size: 12.5px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-card-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 14px;
}

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

.btn-icon.danger:hover {
    border-color: var(--color-danger);
    color: var(--color-danger);
    background: var(--color-danger-light);
}

.btn-icon.success:hover {
    border-color: var(--color-success);
    color: var(--color-success);
    background: var(--color-success-light);
}

/* ---------- Form Controls ---------- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-control-icon {
    position: relative;
}

.form-control-icon .form-control {
    padding-left: 40px;
}

.form-control-icon i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 14px;
}

.form-control-icon .form-control:focus + i,
.form-control-icon .form-control:focus ~ i {
    color: var(--color-primary);
}

/* ---------- Alerts ---------- */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-success {
    background: var(--color-success-light);
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-danger {
    background: var(--color-danger-light);
    color: #991b1b;
    border-color: #fecaca;
}

.alert-warning {
    background: var(--color-warning-light);
    color: #92400e;
    border-color: #fde68a;
}

.alert-info {
    background: var(--color-info-light);
    color: #1e40af;
    border-color: #bfdbfe;
}

/* ---------- Welcome Banner ---------- */
.welcome-banner {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #a855f7 100%);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    color: #ffffff;
    margin-bottom: 28px;
    position: relative;
    overflow: hidden;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.welcome-banner h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
    position: relative;
}

.welcome-banner p {
    font-size: 14px;
    opacity: 0.85;
    position: relative;
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state i {
    font-size: 48px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

/* ---------- Login Page ---------- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.login-page::after {
    content: '';
    position: absolute;
    bottom: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.05); }
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    width: 100%;
    max-width: 440px;
    padding: 48px 40px;
    position: relative;
    z-index: 10;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-brand {
    text-align: center;
    margin-bottom: 36px;
}

.login-brand-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.login-brand-icon i {
    color: #ffffff;
    font-size: 24px;
}

.login-brand h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.login-brand p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.login-form .form-control {
    padding: 12px 14px;
    padding-left: 44px;
    font-size: 14px;
    background: #f8fafc;
    border: 1.5px solid #e2e8f0;
}

.login-form .form-control:focus {
    background: #ffffff;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.login-form .form-control-icon i {
    left: 16px;
    font-size: 15px;
}

.login-btn {
    width: 100%;
    padding: 14px;
    font-size: 15px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #ffffff;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
    font-family: inherit;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.45);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ---------- Modal ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 17px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in-up {
    animation: fadeInUp 0.4s ease-out forwards;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }

/* ---------- Utilities ---------- */
.grid-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }

/* ---------- License Warning ---------- */
.license-warning {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

/* ---------- Mobile Overlay ---------- */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 35;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
    }

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

    .sidebar-toggle {
        display: none;
    }

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

    .top-header {
        left: 0 !important;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .app-content {
        padding: 20px 16px;
    }

    .grid-stats {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 12px;
    }
}

@media (max-width: 640px) {
    .login-card {
        margin: 16px;
        padding: 32px 24px;
    }

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

    .stat-card {
        padding: 18px;
    }

    .stat-content .stat-value {
        font-size: 24px;
    }

    .grid-stats {
        grid-template-columns: 1fr;
    }

    .top-header {
        padding: 0 16px;
    }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ---------- Selection ---------- */
::selection {
    background: var(--color-primary-glow);
    color: var(--color-primary-dark);
}

/* ---------- Print ---------- */
@media print {
    .sidebar, .top-header, .sidebar-toggle, .mobile-menu-btn {
        display: none !important;
    }
    .app-main {
        margin-left: 0 !important;
    }
    .app-content {
        margin-top: 0 !important;
        padding: 0 !important;
    }
}