:root {
    --primary-color: #1A56DB;
    --primary-hover: #1e429f;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border-color: #E5E7EB;
    --sidebar-width: 260px;
    --header-height: 70px;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
    --bg-light: #111827;
    --bg-white: #1F2937;
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --border-color: #374151;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.5;
}

/* Login Page Styles */
.login-page {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1A56DB 0%, #0B2447 100%);
}

.login-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-header .logo {
    height: 60px;
    margin-bottom: 1.5rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.form-group {
    text-align: left;
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-light);
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: var(--primary-color);
}

button[type="submit"] {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 1rem;
}

button[type="submit"]:hover {
    background-color: var(--primary-hover);
}

.error-message {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 1rem;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-white);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    transition: transform 0.3s ease;
    z-index: 1000;
}

.sidebar-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header .logo {
    height: 40px;
    margin-right: 0.75rem;
}

.sidebar-header span {
    font-weight: 800;
    font-size: 1.1rem;
}

.sidebar-nav {
    padding: 1.5rem 1rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-item i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

.nav-item:hover, .nav-item.active {
    background-color: var(--primary-color);
    color: white;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    height: var(--header-height);
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 900;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
    margin-right: 1rem;
}

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

.theme-toggle, .notification-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-muted);
    margin-right: 1.5rem;
}

.user-profile {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.user-profile img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    margin-right: 0.75rem;
}

/* Dashboard Content */
.content-wrapper {
    padding: 2rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title h2 {
    font-size: 1.5rem;
    font-weight: 800;
}

.page-title p {
    color: var(--text-muted);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
}

.stat-icon.primary { background-color: rgba(26, 86, 219, 0.1); color: var(--primary-color); }
.stat-icon.success { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }
.stat-icon.warning { background-color: rgba(245, 158, 11, 0.1); color: var(--warning); }
.stat-icon.danger { background-color: rgba(239, 68, 68, 0.1); color: var(--danger); }

.stat-info h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-info .value {
    font-size: 1.5rem;
    font-weight: 800;
}

/* Charts and Tables */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.card {
    background-color: var(--bg-white);
    border-radius: 1rem;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Table Styles */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 1rem;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-pending { background-color: rgba(245, 158, 11, 0.1); color: var(--warning); }
.status-completed { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }
.status-printing { background-color: rgba(26, 86, 219, 0.1); color: var(--primary-color); }

/* File Manager */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.file-card {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.file-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.file-icon {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: 1rem;
    overflow: hidden;
    border-radius: 0.5rem;
}

.file-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.file-info h4 {
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.file-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.file-actions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--bg-white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 1rem;
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close-modal {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 800;
}

.section h4 {
    font-size: 0.875rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.section p {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

/* UI Components */
.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
}

.btn-primary { background-color: var(--primary-color); color: white; }
.btn-secondary { background-color: var(--bg-light); color: var(--text-main); border: 1px solid var(--border-color); }

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    border-radius: 0.4rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.w-full { width: 100%; }

select {
    padding: 0.4rem;
    border-radius: 0.4rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-white);
    color: var(--text-main);
    font-size: 0.75rem;
}

/* Responsive Utilities */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }
}