/* assets/style.css */
:root {
    --primary-color: #6b46c1;
    --dark-color: #1a202c;
    --light-color: #f7fafc;
    --white: #ffffff;
    --gray-100: #edf2f7;
    --gray-700: #4a5568;
    --sidebar-width: 260px;
    --font-inter: 'Inter', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-inter); background: var(--light-color); color: var(--dark-color); display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: var(--dark-color);
    color: var(--white);
    position: fixed;
    height: 100vh;
    padding: 2rem 1rem;
    overflow-y: auto;
    z-index: 1000;
}
.sidebar h2 { font-size: 1.5rem; margin-bottom: 2rem; color: var(--primary-color); text-align: center; }
.sidebar nav ul { list-style: none; }
.sidebar nav ul li { margin-bottom: 0.5rem; }
.sidebar nav ul li strong { display: block; padding: 1rem 0.75rem 0.5rem; font-size: 0.75rem; text-transform: uppercase; color: var(--gray-700); letter-spacing: 1px; }
.sidebar nav ul li a { color: var(--gray-100); text-decoration: none; font-weight: 500; display: block; padding: 0.75rem; border-radius: 8px; transition: 0.3s; }
.sidebar nav ul li a:hover { background: rgba(107, 70, 193, 0.2); color: var(--primary-color); }
.sidebar nav ul li a.active { background: var(--primary-color); color: var(--white); }

.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    padding: 2rem;
}

.card { background: var(--white); padding: 1.5rem; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); margin-bottom: 1.5rem; border: 1px solid var(--gray-100); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.table th, .table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--gray-100); }
.table th { background: var(--gray-100); font-weight: 600; font-size: 0.875rem; }

.btn { padding: 0.75rem 1.5rem; border-radius: 8px; border: none; cursor: pointer; font-weight: 600; transition: 0.3s; display: inline-block; text-decoration: none; font-size: 0.875rem; }
.btn-primary { background: var(--primary-color); color: var(--white); }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.form-control { width: 100%; padding: 0.75rem; border-radius: 8px; border: 1px solid var(--gray-100); margin-top: 0.5rem; font-family: inherit; }

@media (max-width: 992px) {
    body { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: relative; padding: 1rem; }
    .main-content { margin-left: 0; width: 100%; padding: 1rem; }
    .sidebar h2 { margin-bottom: 1rem; }
    .sidebar nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem; }
    .sidebar nav ul li strong { display: none; }
}