.login-container {
            max-width: 400px;
            margin: 0 auto;
            padding-top: 1vh;
        }
        .card {
            border-radius: 15px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            backdrop-filter: blur(10px);
            background: rgba(255,255,255,0.95);
        }
        .logo {
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, #667eea, #764ba2);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        .logo i {
            color: white;
            font-size: 28px;
        }
        .btn-primary {
            background: linear-gradient(45deg, #2ab2fb, #0496e5);
            border: none;
            border-radius: 10px;
            padding: 12px;
            font-weight: 600;
        }
        .btn-primary:hover {
            background: linear-gradient(45deg, #2ab2fb, #0082c8);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .form-outline {
            margin-bottom: 20px;
        }
        .error-message {
            background: linear-gradient(45deg, #ff6b6b, #ee5a52);
            color: white;
            padding: 10px 15px;
            border-radius: 10px;
            margin-bottom: 20px;
            animation: shake 0.5s ease-in-out;
        }
        .success-message {
            background: linear-gradient(45deg, #51cf66, #40c057);
            color: white;
            padding: 10px 15px;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-5px); }
            75% { transform: translateX(5px); }
        }
        .upload-area {
            border: 2px dashed #667eea;
            border-radius: 15px;
            padding: 40px;
            text-align: center;
            background: rgba(102, 126, 234, 0.05);
            transition: all 0.3s ease;
            margin-bottom: 20px;
        }
        .upload-area:hover {
            background: rgba(102, 126, 234, 0.1);
            transform: translateY(-2px);
        }
        .upload-area.dragover {
            background: rgba(102, 126, 234, 0.15);
            border-color: #5a6fd8;
        }
        .file-list {
            max-height: 300px;
            overflow-y: auto;
        }
        .file-item {
            background: rgba(255,255,255,0.8);
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .file-info {
            display: flex;
            align-items: center;
        }
        .file-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: white;
        }
        .file-icon.video { background: linear-gradient(45deg, #ff6b6b, #ee5a52); }
        .file-icon.image { background: linear-gradient(45deg, #51cf66, #40c057); }
        .file-icon.pdf { background: linear-gradient(45deg, #339af0, #228be6); }
        .progress-bar {
            background: linear-gradient(45deg, #667eea, #764ba2);
        }
        .hidden { display: none; }
        .fade-in {
            animation: fadeIn 0.5s ease-in;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }