/* AccountingApp - Modern UI Styles */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #10B981;
    --accent: #F59E0B;
    --danger: #EF4444;
    --dark: #1E293B;
    --darker: #0F172A;
    --light: #F8FAFC;
    --gray: #64748B;
    --card-bg: #FFFFFF;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #F0F4F8 0%, #E2E8F0 100%);
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 260px;
    background: linear-gradient(180deg, var(--dark) 0%, var(--darker) 100%);
    color: #fff;
    z-index: 1000;
    transition: all 0.3s ease;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand img {
    height: 40px;
    width: 40px;
    border-radius: 10px;
}

.sidebar-brand h4 {
    margin: 0;
    font-weight: 700;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #fff 0%, #A5B4FC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-menu {
    padding: 1rem 0;
}

.menu-label {
    padding: 0.5rem 1.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.4);
    font-weight: 600;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s ease;
    gap: 0.75rem;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border-left-color: var(--primary);
}

.nav-link.active {
    background: rgba(79,70,229,0.2);
    color: #fff;
    border-left-color: var(--primary);
}

.nav-link i {
    width: 20px;
    text-align: center;
}

.nav-submenu {
    padding-left: 2.5rem;
}

.nav-submenu .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    padding: 0;
    transition: all 0.3s ease;
}

.topbar {
    background: #fff;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-dropdown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background 0.2s;
}

.user-dropdown:hover {
    background: var(--light);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
}

.content-wrapper {
    padding: 1.5rem;
}

/* Cards */
.card {
    background: #fff;
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    background: none;
    border-bottom: 1px solid #E2E8F0;
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

/* Stat Cards */
.stat-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

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

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--secondary); }
.stat-card.warning::before { background: var(--accent); }
.stat-card.danger::before { background: var(--danger); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.primary { background: rgba(79,70,229,0.1); color: var(--primary); }
.stat-icon.success { background: rgba(16,185,129,0.1); color: var(--secondary); }
.stat-icon.warning { background: rgba(245,158,11,0.1); color: var(--accent); }
.stat-icon.danger { background: rgba(239,68,68,0.1); color: var(--danger); }

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0.5rem 0;
}

.stat-label {
    color: var(--gray);
    font-size: 0.875rem;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead th {
    background: var(--light);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray);
    border: none;
    padding: 0.75rem 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-color: #E2E8F0;
}

.table tbody tr:hover {
    background: rgba(79,70,229,0.02);
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--secondary);
    border-color: var(--secondary);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
}

/* Forms */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #E2E8F0;
    padding: 0.625rem 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

.form-label {
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.4em 0.8em;
    border-radius: 6px;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.25rem;
}

.alert-success {
    background: rgba(16,185,129,0.1);
    color: #047857;
}

.alert-danger {
    background: rgba(239,68,68,0.1);
    color: #DC2626;
}

.alert-warning {
    background: rgba(245,158,11,0.1);
    color: #D97706;
}

/* Login Page */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, #312E81 100%);
}

.login-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo h2 {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* Dark mode toggle placeholder */
[data-theme="dark"] {
    --card-bg: #1E293B;
    --light: #334155;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .stat-card {
    animation: fadeIn 0.3s ease;
}

/* Print styles */
@media print {
    .sidebar, .topbar, .no-print {
        display: none !important;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}