/* Frontend Styles */
.msbte-main-wrapper {
    max-width: 1200px;
    margin: 20px auto;
    font-family: 'Segoe UI', sans-serif;
}
.msbte-header {
    background: linear-gradient(135deg, #0a1628, #1a3650);
    color: white;
    padding: 25px 30px;
    border-radius: 20px 20px 0 0;
    border-left: 6px solid #f4b942;
}
.msbte-header h1 { margin: 0; display: flex; align-items: center; gap: 12px; }
.msbte-header h1 i { color: #f4b942; }
.msbte-search { padding: 15px 20px; background: #e6ecf3; }
.msbte-search input {
    width: 100%; padding: 14px 20px; border: 2px solid #d9e2ec; border-radius: 50px;
    font-size: 1rem; outline: none;
}
.msbte-dept-tabs { display: flex; flex-wrap: wrap; gap: 10px; padding: 15px 20px; background: #e6ecf3; }
.msbte-tab {
    padding: 12px 22px; border: 2px solid transparent; border-radius: 50px;
    background: white; cursor: pointer; font-weight: 600; font-size: 0.95rem;
}
.msbte-tab.active { background: #0b1c3a; color: white; border-color: #f4b942; }
.msbte-tab i { color: #2563eb; }
.msbte-tab.active i { color: #f4b942; }
.msbte-dept-content { display: none; }
.msbte-dept-content.active { display: block; }
.msbte-semester {
    background: white; margin: 15px; border-radius: 14px; overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05); border: 1px solid #e0e7ef;
}
.msbte-sem-title {
    background: linear-gradient(135deg, #13294b, #1a3a5c); color: white;
    padding: 14px 20px; cursor: pointer; font-weight: 700; font-size: 1.1rem;
    display: flex; align-items: center; gap: 10px;
}
.msbte-sem-title i { color: #f4b942; }
.msbte-sem-content { display: none; padding: 5px 0; }
.msbte-semester.open .msbte-sem-content { display: block; }
.msbte-subject { border-bottom: 1px solid #eef2f6; }
.msbte-subj-title {
    padding: 12px 20px; cursor: pointer; display: flex; align-items: center; gap: 10px;
    font-weight: 600;
}
.msbte-code {
    background: #eef6ff; color: #2563eb; padding: 4px 10px; border-radius: 20px;
    font-family: monospace; font-size: 0.85rem; min-width: 80px; text-align: center;
}
.msbte-resources {
    display: none; grid-template-columns: repeat(3, 1fr); gap: 8px;
    padding: 10px 20px 18px 100px; background: #fbfdff;
}
.msbte-subject.open .msbte-resources { display: grid; }
.msbte-res-link {
    background: white; border: 1px solid #cbd5e1; border-radius: 30px;
    padding: 8px 5px; text-align: center; text-decoration: none; color: #1e293b;
    font-weight: 500; font-size: 0.85rem; display: flex; align-items: center;
    justify-content: center; gap: 5px; transition: all 0.2s;
}
.msbte-res-link:hover { background: #0b1c3a; color: white; }
.msbte-res-link i { color: #1e4a7a; }
.msbte-res-link:hover i { color: #f4b942; }
@media (max-width: 600px) {
    .msbte-resources { grid-template-columns: repeat(2, 1fr); padding-left: 15px; }
}