/* ===== RESET ===== */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f1f5f9;
}

/* ===== LAYOUT FIX ===== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR (NOT FIXED ANYMORE) */
.teacher-sidebar {
    width: 220px;
    background: linear-gradient(180deg,#0f172a,#1e293b);
    color: white;
    padding: 20px;
    flex-shrink: 0;
}

/* MAIN AREA */
.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* CONTENT */
.main-content {
    flex: 1;
    padding: 30px;
}

/* FOOTER ALWAYS BELOW */
.main-footer {
    width: 100%;
}

.teacher-sidebar h3 {
    margin-bottom: 20px;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
}

.sidebar-menu li {
    margin-bottom: 12px;
}

.sidebar-menu li a {
    display: block;
    padding: 10px;
    border-radius: 8px;
    color: white;
    text-decoration: none;
    transition: 0.3s;
}

.sidebar-menu li.active a,
.sidebar-menu li a:hover {
    background: #3b82f6;
}



/* ===== CARDS ===== */
.card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

/* ===== GRID CARDS ===== */
.dashboard-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.dashboard-grid .card {
    flex: 1;
    min-width: 200px;
}

/* ===== BUTTON ===== */
.btn {
    display: inline-block;
    padding: 8px 14px;
    background: #2563eb;
    color: white;
    border-radius: 6px;
    text-decoration: none;
}

.btn:hover {
    background: #1d4ed8;
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){

    .teacher-sidebar {
        position: relative;
        width: 100%;
        height: auto;
    }

    .main-area {
        margin-left: 0;
        width: 100%;
    }

    .dashboard-grid {
        flex-direction: column;
    }
}



/* ===== GLOBAL ===== */
.main-content {
    padding: 30px;
    background: #f8fafc;
}

/* ===== CARD ===== */
.card {
    background: #ffffff;
    border-radius: 16px;
    padding: 20px;
    margin-top: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

/* ===== TABLE ===== */
.crm-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.crm-table th {
    text-align: left;
    padding: 12px;
    background: #f1f5f9;
    font-weight: 600;
}

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

.crm-table tr:hover {
    background: #f9fafb;
}

/* ===== STATUS BADGE ===== */
.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge.green { background:#dcfce7; color:#16a34a; }
.badge.red { background:#fee2e2; color:#dc2626; }
.badge.orange { background:#fef3c7; color:#d97706; }

/* ===== BUTTON ===== */
.btn-primary {
    background: #2563eb;
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    text-decoration: none;
}

.btn-primary:hover {
    background: #1d4ed8;
}

/* ===== SELECT ===== */
select {
    padding: 6px;
    border-radius: 6px;
    border: 1px solid #ddd;
}

/* ===== HEADER ===== */
.page-title {
    font-size: 22px;
    font-weight: 600;
}

/* ===== PROFILE CARD ===== */
.profile-card {
    max-width: 500px;
}

.profile-card input {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    border-radius: 6px;
    border: 1px solid #ddd;
}