* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Inter, sans-serif;
}

body {
    background: #f4f6f9;
}

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    background: #111827;
    color: white;
    padding: 25px;
}

.sidebar h2 {
    margin-bottom: 30px;
}

.sidebar a {
    display: block;
    padding: 10px 0;
    color: #d1d5db;
    text-decoration: none;
    transition: 0.2s;
}

.sidebar a:hover {
    color: white;
}

.sidebar .logout {
    margin-top: 40px;
    color: #f87171;
}

.content {
    flex: 1;
    padding: 40px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

button {
    background: #2563eb;
    border: none;
    padding: 10px 16px;
    color: white;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

input, textarea, select {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #ddd;
}

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

th {
    text-align: left;
    padding: 12px;
    background: #f3f4f6;
}

td {
    padding: 12px;
    border-bottom: 1px solid #eee;
}

.badge {
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
}

.upcoming { background: #dcfce7; color: #166534; }
.completed { background: #e5e7eb; color: #374151; }
.pending { background: #fef3c7; color: #92400e; }

.toast {
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 6px;
    background: #e0f2fe;
}

.toast.error {
    background: #fee2e2;
    color: #991b1b;
}

.logout-btn {
    background: none;
    border: none;
    color: #f87171;
    cursor: pointer;
    padding: 0;
    font-size: 14px;
    text-align: left;
}

.logout-btn:hover {
    text-decoration: underline;
}