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

body {
    font-family: 'Inter', sans-serif;
    background: #1A1F2E;
    min-height: 100vh;
    color: #D3D3D3;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #1A1F2E;
    border-bottom: 1px solid #2E3447;
    padding: 15px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #D3D3D3;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header h1 i {
    color: #00A3E0;
    font-size: 1.5rem;
}

#infoButton {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #00A3E0;
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

#infoButton:hover {
    color: #0087B8;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 20px 80px 20px;
    display: flex;
    flex-direction: column;
}

.content-wrapper {
    display: flex;
    flex: 1;
}

.sidebar {
    display: none;
    width: 200px;
    background: #1A1F2E;
    border-right: 1px solid #2E3447;
    padding: 20px;
    height: calc(100vh - 60px);
    position: fixed;
    top: 60px;
    left: 0;
}

.bottom-nav {
    display: flex;
    justify-content: space-around;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1A1F2E;
    border-top: 1px solid #2E3447;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.tab-item {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 500;
    color: #D3D3D3;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bottom-nav .tab-item {
    text-align: center;
    padding: 8px;
    margin: 0 5px;
}

.bottom-nav .tab-item i {
    font-size: 1.6rem;
}

.tab-item.active,
.tab-item:hover {
    color: #00A3E0;
}

.bottom-nav .tab-item.active,
.bottom-nav .tab-item:hover {
    background: #2E3447;
    border-radius: 16px;
    padding: 0px 15px 0px 15px;
}

.sidebar .tab-item {
    display: block;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
}

.sidebar .tab-item.active,
.sidebar .tab-item:hover {
    background: #2E3447;
}

.tab-content {
    display: none;
    width: 100%;
}

.tab-content.active {
    display: block;
}

.search-card-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40vh;
}

.search-card {
    background: #1A1F2E;
    border-radius: 15px;
    padding: 20px;
    width: 100%;
    max-width: 500px;
}

.search-card img {
    max-width: 180px;
    height: auto;
    margin: 0 auto 20px;
    display: block;
    border-radius: 38px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.input-container {
    position: relative;
    width: 100%;
}

#studentId {
    width: 100%;
    padding: 12px 100px 12px 15px;
    font-size: 1rem;
    border: 1px solid #2E3447;
    border-radius: 25px;
    background: #2E3447;
    color: #D3D3D3;
    transition: all 0.3s ease;
}

#studentId:focus {
    outline: none;
    border-color: #00A3E0;
    box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.2);
}

#searchButton {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: #00A3E0;
    color: #D3D3D3;
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

#searchButton:hover {
    background: #0087B8;
}

#errorMessage {
    color: #FF4040;
    text-align: center;
    margin-top: 10px;
    font-size: 0.9rem;
    display: none;
}

.card {
    background: #1A1F2E;
    border-radius: 12px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.card h2 {
    color: #D3D3D3;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card h2 i {
    color: #00A3E0;
}

.card h3 {
    color: #D3D3D3;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.profile-section {
    text-align: center;
    margin-bottom: 20px;
}

.profile-icon {
    font-size: 5rem;
    color: #D3D3D3;
    background: linear-gradient(135deg, #00A3E0, #1A1F2E);
    border-radius: 50%;
    padding: 10px;
    display: inline-block;
    margin-bottom: 10px;
    border: 2px solid #2E3447;
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    padding: 15px;
    background: #2E3447;
    border-radius: 10px;
    transition: background 0.3s ease;
}

.detail-item:hover {
    background: #3A405A;
}

.detail-item i {
    color: #00A3E0;
    font-size: 1.2rem;
}

.detail-item strong {
    color: #D3D3D3;
    font-weight: 500;
}

.semester-table {
    margin-bottom: 20px;
}

.semester-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 0 0 0px 15px;
}

.semester-table h3 {
    color: #D3D3D3;
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.semester-table h3 i {
    color: #00A3E0;
}

.table-container {
    overflow-x: auto;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
    width: 100%;
}


.table-container::-webkit-scrollbar {
    width: 8px;

    height: 8px;

}


.table-container::-webkit-scrollbar-track {
    background-color: #1A1F2E;

}


.table-container::-webkit-scrollbar-thumb {
    background-color: #00A3E0;

    border-radius: 4px;

}


.table-container::-webkit-scrollbar-thumb:hover {
    background-color: #1A1F2E;

}

.course-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.course-card {
    background: #1A1F2E;
    border-radius: 12px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
    padding: 15px;

    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.course-card .details-grid {
    gap: 10px;
}

.dropdown-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 0;
    cursor: pointer;
}

.dropdown-toggle i {
    color: #00A3E0;
    font-size: 1.2rem;
    transition: transform 0.3s ease, color 0.3s ease;
}

.dropdown-toggle i:hover {
    color: #0087B8;
}

.dropdown-toggle.open i {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    margin-top: 10px;
}

.sgpa {
    font-weight: 500;
    color: #D3D3D3;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.sgpa i {
    color: #00A3E0;
}

#loadingOverlay {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: calc(100% - 120px);
    background: rgba(26, 31, 46, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 900;
}

.loading-text {
    color: #D3D3D3;
    font-size: 1.5rem;
    font-weight: 500;
    background: #00A3E0;
    padding: 15px 25px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.loading-text i {
    color: #D3D3D3;
    animation: spin 1s linear infinite;
}

#alertModal,
#developerModal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 31, 46, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 950;
}

#alertModal .modal-content,
#developerModal .modal-content {
    background: #1A1F2E;
    border-radius: 15px;
    padding: 20px;
    max-width: 410px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    margin: auto;
}

#alertModal p,
#developerModal p {
    color: #D3D3D3;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#alertModal p i,
#developerModal p i {
    color: #FF4040;
    font-size: 1.2rem;
}

#alertModal button,
#developerModal button {
    background: #00A3E0;
    color: #D3D3D3;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

#alertModal button:hover,
#developerModal button:hover {
    background: #0087B8;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

#searchLoadingOverlay {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: -webkit-fill-available;
    background: rgba(26, 31, 46, 0.7);
    backdrop-filter: blur(5px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1001;
    pointer-events: none;

}

#searchLoadingOverlay .loading-text {
    color: #00A3E0;
    font-size: 1.5rem;
    font-weight: 500;
    background: #2E3447;
    padding: 15px 25px;
    border-radius: 10px;
    display: flex;
    margin: 0 auto;
    max-width: 320px;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

#searchLoadingOverlay .loading-text i {
    color: #D3D3D3;
    animation: spin 1s linear infinite;
}

@media (min-width: 768px) {
    .bottom-nav {
        display: none;
    }

    .sidebar {
        display: block;
    }

    .tab-content {
        margin-left: 220px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .header h1 i {
        font-size: 1.8rem;
    }

    .content-wrapper {
        padding: 49px 0px 0px 0px;
    }
}

@media (max-width: 767px) {
    .header h1 {
        font-size: 1.5rem;
        max-width: 80%;
    }

    .header h1 i {
        font-size: 1.3rem;
    }

    #infoButton {
        font-size: 1.3rem;
    }

    .container {
        padding-top: 20px;
    }

    .card {
        padding: 15px;
    }

    .course-card {
        max-width: 90%;
    }


    .search-card img {
        max-width: 130px;
    }

    .sidebar {
        display: none;
    }

    .bottom-nav .tab-item span {
        display: none;
    }

    .bottom-nav .tab-item i {
        font-size: 1.4rem;
    }

    .table-container {
        max-height: calc(100vh - 180px);
    }

    .profile-icon {
        font-size: 4rem;
    }

    .detail-item {
        font-size: 0.95rem;
        padding: 12px;
    }

    .detail-item i {
        font-size: 1.1rem;
    }

    .card h3 {
        font-size: 1.3rem;
    }

    #alertModal .modal-content,
    #developerModal .modal-content {
        padding: 15px;
    }

    #alertModal p,
    #developerModal p {
        font-size: 0.9rem;
    }

    #alertModal button,
    #developerModal button {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    .content-wrapper {
        padding: 49px 0px 0px 0px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.3rem;
        max-width: 70%;
    }

    .header h1 i {
        font-size: 1.1rem;
    }

    #infoButton {
        font-size: 1.1rem;
        right: 15px;
    }

    #studentId {
        font-size: 0.95rem;
        padding: 10px 90px 10px 12px;
    }

    #searchButton {
        padding: 5px 9px;
        font-size: 0.9rem;
        right: 7px;
    }

    .card {
        padding: 0px !important;
    }

    .course-card {
        max-width: 100%;
        padding: 12px;
    }

    .course-card .detail-item {
        font-size: 0.9rem;
        padding: 10px;
    }

    .course-card .detail-item i {
        font-size: 1rem;
    }

    .dropdown-toggle i {
        font-size: 1rem;
    }

    .semester-table h3 {
        font-size: 1.2rem;
    }

    .sgpa {
        font-size: 0.9rem;
    }

    .bottom-nav .tab-item i {
        font-size: 1.2rem;
    }

    .search-card img {
        max-width: 130px;
    }

    .profile-icon {
        font-size: 3rem;
    }

    .detail-item {
        font-size: 0.9rem;
        padding: 10px;
    }

    .detail-item i {
        font-size: 1rem;
    }

    .card h3 {
        font-size: 1.2rem;
    }

    #alertModal .modal-content,
    #developerModal .modal-content {
        max-width: 347px;
    }

    #alertModal p,
    #developerModal p {
        font-size: 0.85rem;
    }

    .content-wrapper {
        padding: 49px 0px 0px 0px;
    }
}