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


    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 100vh;
        color: #1a1a2e;
    }

    .main-wrapper {
        max-width: 480px;
        margin: 0 auto;
        min-height: 100vh;
        background: #f8f9fa;
        box-shadow: 0 0 50px rgba(0,0,0,0.2);
    }

    .header {
        background-image: url('./header.jpeg');
        background-size: cover;
        background-position: center;
        color: white;
        padding: 20px;
        position: relative;
        overflow: hidden;
    }

    .header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 1;
    }

    .header-logo {
        width: 60px;
        height: 60px;
        border-radius: 12px;
        background: white;
        padding: 6px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        position: relative;
        z-index: 2;
    }

    .header-content {
        display: flex;
        align-items: center;
        gap: 15px;
        position: relative;
        z-index: 2;
    }

    .header-text {
        flex: 1;
    }

    .header h1 {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 4px;
        letter-spacing: -0.5px;
        text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    }

    .header p {
        font-size: 14px;
        opacity: 0.95;
        font-weight: 400;
        text-shadow: 0 1px 4px rgba(0,0,0,0.3);
    }

    .container {
        padding: 20px;
        margin-top: -20px;
    }

    .card {
        background: white;
        border-radius: 20px;
        padding: 24px;
        margin-bottom: 20px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        transition: transform 0.2s, box-shadow 0.2s;
    }

    .card:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 25px rgba(0,0,0,0.12);
    }

    .card-header {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 20px;
    }

    .card-icon {
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .card-icon svg {
        width: 22px;
        height: 22px;
        fill: white;
    }

    .card-title {
        font-size: 20px;
        font-weight: 700;
        color: #1a1a2e;
    }

    .input-group {
        margin-bottom: 20px;
    }

    .input-group label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 10px;
        color: #4a5568;
    }

    .input-group input {
        width: 100%;
        padding: 14px 16px;
        font-size: 16px;
        border: 2px solid #e2e8f0;
        border-radius: 12px;
        transition: all 0.3s;
        background: #f8f9fa;
    }

    .input-group input:focus {
        outline: none;
        border-color: #667eea;
        background: white;
        box-shadow: 0 0 0 4px rgba(102,126,234,0.1);
    }

    .info-box {
        background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
        padding: 18px;
        border-radius: 14px;
        margin-bottom: 20px;
        border: 1px solid #d6e0ff;
    }

    .info-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 12px;
    }

    .info-row:last-child {
        margin-bottom: 0;
    }

    .info-label {
        font-size: 14px;
        color: #5a67d8;
        font-weight: 500;
    }

    .badge {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 8px 18px;
        border-radius: 20px;
        font-size: 14px;
        font-weight: 700;
        box-shadow: 0 2px 8px rgba(102,126,234,0.3);
    }

    .btn {
        width: 100%;
        padding: 16px;
        font-size: 16px;
        font-weight: 600;
        color: white;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border: none;
        border-radius: 12px;
        cursor: pointer;
        transition: all 0.3s;
        box-shadow: 0 4px 15px rgba(102,126,234,0.3);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }

    .btn:active {
        transform: scale(0.98);
    }

    .btn.enabled {
        background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
        box-shadow: 0 4px 15px rgba(72,187,120,0.3);
    }

    .btn svg {
        width: 20px;
        height: 20px;
        fill: white;
    }

    .day-selector {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        margin-bottom: 20px;
        padding-bottom: 5px;
        scrollbar-width: none;
    }

    .day-selector::-webkit-scrollbar {
        display: none;
    }

    .day-btn {
        padding: 10px 18px;
        border: 2px solid #e2e8f0;
        background: white;
        border-radius: 12px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        white-space: nowrap;
        transition: all 0.3s;
        color: #4a5568;
    }

    .day-btn.active {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border-color: transparent;
        box-shadow: 0 4px 12px rgba(102,126,234,0.3);
    }

    .day-btn.off {
        background: #fed7d7;
        color: #c53030;
        border-color: #fc8181;
    }

    .class-item {
        background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
        padding: 18px;
        border-radius: 16px;
        margin-bottom: 14px;
        border-left: 4px solid #667eea;
        transition: all 0.2s;
        box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    }

    .class-item:hover {
        transform: translateX(4px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .class-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 10px;
    }

    .class-time {
        font-size: 15px;
        font-weight: 700;
        color: #667eea;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .class-time svg {
        width: 16px;
        height: 16px;
        fill: #667eea;
    }

    .type-badge {
        padding: 6px 12px;
        border-radius: 8px;
        font-size: 11px;
        font-weight: 700;
        color: white;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .type-lecture { background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%); }
    .type-tutorial { background: linear-gradient(135deg, #48bb78 0%, #38a169 100%); }
    .type-practical { background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%); }
    .type-dissection { background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%); }
    .type-demonstration { background: linear-gradient(135deg, #9f7aea 0%, #805ad5 100%); }

    .class-subject {
        font-size: 18px;
        font-weight: 700;
        margin: 10px 0;
        color: #1a1a2e;
    }

   .class-details {
            display: flex;
            flex-wrap: wrap; /* Added to handle multiple items */
            gap: 12px;
            font-size: 13px;
            color: #718096;
            font-weight: 500;
        }

        .class-detail-item {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #edf2f7; /* Subtle background for better separation */
            padding: 4px 8px;
            border-radius: 6px;
        }
    .class-detail-item svg {
        width: 14px;
        height: 14px;
        fill: #a0aec0;
    }

    .empty-state {
        text-align: center;
        padding: 50px 20px;
        color: #a0aec0;
    }

    .empty-state svg {
        width: 80px;
        height: 80px;
        fill: #e2e8f0;
        margin-bottom: 16px;
    }

    .empty-state-text {
        font-size: 16px;
        font-weight: 600;
        color: #718096;
    }

    .footer {
        text-align: center;
        padding: 30px 20px;
        color: #718096;
        font-size: 13px;
        background: white;
        margin: 20px;
        border-radius: 20px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    }

    .footer-credit {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        font-weight: 700;
    }