:root {
    --primary: #371859;
    --primary-light: #522780;
    --primary-dark: #220e36;
    --white: #ffffff;
    --bg-color: #f4f5f7;
    --text-main: #333333;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Auth Layout */
.auth-wrapper {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 1rem;
}

.auth-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    animation: fadeIn 0.5s ease;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(55, 24, 89, 0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-light);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Dashboard Layout */
.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 260px;
    background-color: var(--white);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 10;
    transition: var(--transition);
}

.sidebar-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.nav-item {
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
    background-color: rgba(55, 24, 89, 0.05);
    color: var(--primary);
}

.nav-item.active {
    border-left-color: var(--primary);
}

.nav-icon {
    font-size: 1.25rem;
}

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

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-header {
    height: 70px;
    background-color: var(--white);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 5;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

/* Cards & Components */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

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

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

/* Utilities */
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.mt-1 { margin-top: 0.25rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.text-center { text-align: center; }

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        height: 100%;
    }
    .sidebar.open {
        left: 0;
    }
    .top-header {
        padding: 0 1rem;
    }
}